Two dimensional transition metal dichalcogenides provide a host of unique optoelectronic properties, attributed to their two dimensional nature and unique band structure, making them promising for future optoelectronics device applications. In the work presented in this thesis, we focus on the theoretical understanding and modelling of the optoelectronic properties of monolayer transition metal dichalcogenides, their heterostructures and multilayers. We studied the relaxation rates of photo-excited carriers leading to the formation of electron-hole pairs and their subsequent radiative recombination, resulting in emission of light. We find sub-ps relaxation times, attributed to the strong coupling of carriers with optical phonons, allowing the efficient formation of strongly bound multi-particle complexes such as excitons, trions and biexcitons, which can recombine radiatively if allowed by selection rules. We classify the various complexes according to their optical activity, and predict using diffusion quantum Monte Carlo calculations the resulting photoluminescence spectra in these materials. We proposed a novel, material specific, Auger process in WS2 and WSe2 involving dark excitons, which dominates over radiative processes for relatively low carrier densities, providing an explanation to the observed low quantum efficiencies in these materials. In the same pair of materials, we have shown how the ground state dark trions and biexcitons can become bright and recombine radiatively through an electron-electron intervalley scattering process, resulting in new observable lines in the photoluminescence spectra of these materials. The ability to form van der Waals heterostructures of two or more layers of these materials, allows for new degrees of freedom to be explored and utilised. The heterobilayer system made of MoSe2/WSe2 has a type-II band alignment, allowing for the formation of interlayer bound complexes with carriers localized on opposite layers. We studied the bound complexes formed in this bilayer system, localized on donor impurities. We used quantum Monte Carlo methods to obtain binding energies and wave functions, and calculated the radiative rates and doping dependent photoluminescence spectra of these complexes for closely aligned layers, and asymptotic behaviour for strongly misaligned layers. Finally, we studied few-layers of 2H-stacked transition metal dichalcogenides. The van der Waals quantum well structure results in the splitting of the conduction and valence bands into multiple subbands with energy spacings covering densely the infrared to far-infrared spectral range. We developed a hybrid k.p-tight binding model parameterised by DFT calculations of monolayer and bulk crystals of the studied materials. We used the model to describe the subband dispersions, transition energies, phonon induced broadening and resulting absorption lineshapes for both p-doped and n-doped few-layer films.

The aim of this thesis is to investigate the environmental changes across the Mesolithic-Neolithic transition (c.7000-5000 cal BP) at two sites in north-west Europe. Specific research questions focus on the role of fire, the interaction of climate and environmental change and human impacts, and the degree of continuity across the transition. Previous work has led to hypotheses of human impacts in the late Mesolithic, usually through the use of fire, increasing the abundance of food. Detection of these practices and the change to farming in the Neolithic has long been the study of pollen analysts, but in this project additional techniques of NPPs, size-class differentiated charcoal, and silicon and titanium were added at high resolution in order to determine the relationships between the different forcing factors on mid-Holocene environments. Sites were selected close to locations where known later Mesolithic artefacts have been found, with dated archaeological excavations. An upland UK bog site (Dan Clough Moss, near March Hill, West Yorkshire) and a lowland Swedish lake (Bökeberg, Skåne) provided contrasting environments, and enabled a range of proxies to be used from terrestrial peat and limnic sediments. 14C dates from selected macrofossils enabled an age-depth curve to be produced from each profile, with a Bayesian model applied to estimate the age of each sample. Results show a detailed record of woodland change from both areas. At Dan Clough Moss, disturbance phases with evidence of local fires occur frequently (typically every 20-30 years) in the late Mesolithic, and have low magnitude but consistent records of coprophilous fungi. Some phases of disturbance are different however, without the fungal spore evidence, and with heath plants increasing in representation. Drier phases appear to correlate with more local fire, and increased hazel. The transition is marked by a change to longer duration but distant fires, and longer periods of woodland disturbance, increased ruderal species and more heathland. The dates of occupation phases show a late survival of Mesolithic practices, overlapping with the Neolithic by around 300 years. At Bökeberg, a contrasting pattern is shown, with longer-duration phases of inferred human impact being replaced by shorter episodes of fire-associated disturbance after the date of the transition. Pollen and spore zones of disturbance concur with the dated occupation of late Mesolithic sites at the former lake edge. There is some evidence for markedly wetter, and then significantly drier, climate through the transition, and it could be inferred that this influenced the change in food production economies. However, the overall landscape changed only subtly, with more evidence of potential weeds of cultivation. At Bökeberg, there was no overlap- both radiocarbon and palynology suggest an abrupt transition from Mesolithic to Neolithic. The landscape impact of the transition from Mesolithic to Neolithic at both sites was not a clear and consistent one. While Ulmus decline levels and thereafter had increases in weed species and other herbs the overall balance of trees and shrubs changed less than 20%. At both sites, climate may have been influential, although the evidence is inconclusive. Fires were important at both sites and in both periods, but at different scales and duration. Disturbance phases varied within the Mesolithic as well as between the Mesolithic and the Neolithic.

Song Haibin. / "March, 2002." / Thesis (Ph.D.)--Chinese University of Hong Kong, 2002. / Includes bibliographical references (p. 137-151). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.

Alkane elimination reaction of Hf(CH2SiMe3) 4 with a zwitterionic salt 1-Me2NHCH2CH2 -1,3-C2B10H12 has resulted in the isolation and structurally characterization of the first example of half-sandwich group 4 metallacarborane alkyls of the C2B10 system. This is also a new route to high-valent group 4 metallacarboranes. / Alkane or amine elimination reactions are also effective methods for the preparation of half-sandwich group 4 metal] acarboranes of the C 2B9 system. The Lewis base functionalized sidearm can effectively stabilize half-sandwich group 4 metallacarborane alkyls through intramolecular coordination. These novel metallacarborane alkyls undergo insertion reaction with alkyne and intramolecular hydrogen atom abstraction reactions. / High-valent group 4 half-sandwich metallacarboranes incorporating an eta 7-carboranyl ligand have been prepared and structurally characterized. The heteroatom-containing pendant sidearms on the carborane cage are both electronically and entropically necessary for the formation of such complexes. / Reaction of [(Me2NCH2CH2)C2B 10H11]Na2 with YCl3 gives eta 1:eta6-[(Me2NCH2CH2)C 2B10H11]YCl(THF)3 containing an exopolyhedral Y-Cl bond, which offers an important intermediate for the preparation of lanthanacarboranes bearing the Ln-C or Ln-X (X = heteroatoms) bonds. On the other hand, it implies that Lewis base functionalized carboranes can stabilize half-sandwich metallacarboranes via the coordination of heteroatom from the sidearm. Silylamine elimination reactions of the neutral ligand 7-Me2NHCH2CH2-7,8-C 2B9H11 with Ln[N(SiHMe2)2] 3(THF)2 are effective method for the preparation of half-sandwich lanthanacarboranes. / Reactions of alkali metal salt of these carboranes with LnCl3 in the presence of excess alkali metal afford a novel class of 13-vertex closo-metallacarboranes incorporating eta7-carboranyl ligands [{eta1:eta1:eta7-[(DCH 2CH2)RC2B10H10]Ln}{Na(solvent) x}]n. Structural studies show that the Lewis base functionalized sidearms have some effects on the coordination environments of the central metal atom, but do not change the gross structures of the 13-vertex closo-metallacarboranes. The reactivity patterns of these 13-vertex closo-metallacarboranes have been studied for the first time. / Several mono- and bisfunctional carboranes (DCH2CH2)RC 2B10H10 (R = H, DCH2CH2, D = MeO, Me2N) have been designed and successfully synthesized. They can be conveniently converted into the monoanions, the dianions and the tetraanions by treatment with suitable reagents. Their applications in organolanthanide and group 4 organometallic chemistry have been studied. / Cheung Mak-shuen. / "June 2005." / Adviser: Kevin W. P. Leung. / Source: Dissertation Abstracts International, Volume: 67-01, Section: B, page: 0258. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2005. / Includes bibliographical references (p. 169-181). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract in English and Chinese. / School code: 1307.

本研究主要集中在苯胺基配體及全氟苯胺基配體　[N(R')(2,6-R₂C₆H₃)]⁻ [R = Me, Pr{U+2071} ; R' = SiMe₃, SiBu{U+1D57}Me₂, C₆F₅]　衍生出來的一價銅的配位化學，包括其絡合物的合成、結構及氧化反應的研究。 / 第一章概括地介紹了金屬胺他物及銅配合物氧化反應的研究背景。 / 第二章敘述了由苯胺基配體所衍生的一價銅絡合物的裝備及結構。透過苯胺基鹼金屬絡合物 [(M)N(R')(2,6-R₂C₆H₃)] (M = Li, K) 與銅鹵化物CuX (X = Cl, I) 反應，成功合成一系列一價銅絡合物 [Cu₂(L¹)₂(tmeda)] (L¹= [N(SiMe₃)(2,6-Me₂C₆H₃)]⁻)⁻ 及[{Cu(tmeda)₂}{Cu(L{U+207F})₂}] (L{U+207F} = [N(R')(2,6-R₂C₆H₃)]⁻: n = 2, R = Pr{U+2071}, R' = SiMe₃; n = 3, R = Me, R' = SiBu{U+1D57}Me₂; n = 4, R = Pr{U+2071}, R' = SiBu{U+1D57}Me₂; n = 5, R = Me, R' = C₆F₅; n = 6, R = Pri, R' = C₆F₅)。另外，銅碘化物與兩倍的苯胺基鉀絡合物反應[KN(R')(2,6-R₂C₆H₃)] 生成一價銅絡合物 [(tmeda)KCu(L²)₂] (L² = [N(SiMe₃)(2,6-Pr{U+2071} ₂C₆H₃)]) 及 [(tmeda)₂KCu(L⁶)₂] (L⁶ = [N(C₆F₅)(2,6-Pr{U+2071} ₂C₆H₃)]。 / 第三章描述了苯胺基一價銅絡合物跟三苯基膦的氧化反應研究，其中研究不同反應條件，包括反應溫度、氧含量及催化物比例對氧化反應的影響。 / 第四章總結了本研究的成果，同時簡單討論了本課題未來的研究方向。 / The present research work focuses on the synthesis, structure and oxygenation reactivity of a series of copper(I) complexes supported by [N(R')(2,6-R₂C₆H₃)]⁻ (R = Me, Pri ; R' = SiMe₃, SiBu{U+1D57}Me₂, C₆F₅) ligands. / Chapter one gives an overview on the chemistry of metal amides. A brief introduction to copper-dioxygen chemistry is also presented. / Chapter two describes the synthesis and structural characterisation of copper(I) anilides. A series of anilido ligands of the type [N(R')(2,6-R₂C₆H₃)]⁻ (R = Me, Pr{U+2071} ; R' = SiMe₃, SiBu{U+1D57}Me₂, C₆F₅) and tmeda (N,N,N',N'-tetramethylethylenediamine) were employed in our studies. Reactions of CuX (X = Cl, I) with alkali-metal salts of the [N(R')(2,6-R₂C₆H₃)]⁻ ligands yielded the corresponding copper(I) complexes of the type [Cu₂(L¹)₂(tmeda)] (L¹= [N(SiMe₃)(2,6-Me₂C₆H₃)]⁻) or [{Cu(tmeda)₂}{Cu({U+207F})₂}] (L{U+207F} = [N(R')(2,6-R₂C₆H₃)]⁻: n = 2, R = Pr{U+2071}, R' = SiMe₃; n = 3, R = Me, R' = SiBu^(t)Me₂; n = 4, R = Pri, R' = SiBu{U+1D57}Me₂; n = 5, R = Me, R' = C₆F₅; n = 6, R = Pri, R' = C₆F₅). Moreover, reactions of CuI with two equivalents of potassium salts of the [N(R')(2,6-R₂C₆H₃)]⁻ ligands gave copper(I) complexes of the type [(tmeda)KCu(L²)₂] (L₂ = [N(SiMe₃)(2,6-Pr{U+2071} ₂C₆H₃)]) and [(tmeda)₂KCu(L⁶)₂] (L⁶ = [N(C₆F₅)(2,6-Pr{U+2071} ₂C₆H₃)]. / Chapter three deals with the oxygenation reactivity of the copper(I) anilido complexes prepared in this work. The reactions of copper(I) complexes 17-24 with dioxygen led to the conversion of triphenylphosphine to triphenylphosphine oxide. The oxo-transfer reaction was studied under different reaction conditions, such as reaction temperature, oxygen content, and [PPh₃]:[complex] ratio. / Chapter four summarises the results of this research work. An outlook on future directions of this research project is also described in this chapter. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Chen, Yat Kit. / "November 2012." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2013. / Includes bibliographical references. / Abstracts also in Chinese. / Abstract --- p.i / 摘要 --- p.iii / Acknowledgement --- p.iv / Abbreviations --- p.vii / List of Compounds --- p.x / Chapter Chapter 1 - --- An Overview on Late Transition Metal Amides and Copper-Dioxygen Chemistry / Chapter 1.1 --- General Background --- p.1 / Chapter 1.2 --- An Introduction to Late Transition Metal Amides --- p.1 / Chapter 1.3 --- An Introduction to Copper-Dioxygen Chemistry --- p.4 / Chapter 1.4 --- Objectives of This Work --- p.6 / Chapter 1.5 --- References for Chapter 1 --- p.7 / Chapter Chapter 2 - --- Synthetic and Structural Studies of Copper Anilides / Chapter 2.1 --- A General Overview on Anilido Complexes --- p.11 / Chapter 2.2 --- Aims of Our Study --- p.22 / Chapter 2.3 --- Results and Discussion / Chapter 2.3.1 --- Aniline Precursors and Their Alkali Metal Derivatives / Chapter 2.3.1.1 --- Synthesis of Aniline Precursors HL{U+207F} (n = 1-6) --- p.23 / Chapter 2.3.1.2 --- Synthesis of Alkali Metal Derivatives of L{U+207F} (n = 1-6) --- p.25 / Chapter 2.3.1.3 --- Physical Properties of Compounds 7-16 --- p.26 / Chapter 2.3.1.4 --- Molecular Structures of Compounds 7-16 --- p.33 / Chapter 2.3.2 --- Synthesis and Structures of Copper Anilides / Chapter 2.3.2.1 --- Synthesis of Copper(I) Complexes of L{U+207F}(n = 1-6) --- p.62 / Chapter 2.3.2.2 --- Physical Properties of Compounds 17-24 --- p.65 / Chapter 2.3.2.3 --- Molecular Structures of Compounds 17-24 --- p.70 / Chapter 2.3.3 --- Electrochemical Studies --- p.100 / Chapter 2.4 --- Experimentals for Chapter 2 --- p.109 / Chapter 2.5 --- References for Chapter 2 --- p.120 / Chapter Chapter 3 - --- Oxygenation Reactivity Studies / Chapter 3.1 --- A General Review on Oxygenation Copper-Dioxygen Chemistry --- p.128 / Chapter 3.2 --- Aims of Our Study --- p.148 / Chapter 3.3 --- Results and Discussion --- p.149 / Chapter 3.4 --- Experimentals for Chapter 3 --- p.153 / Chapter 3.5 --- References for Chapter 3 --- p.155 / Chapter Chapter 4 - --- Summary and Future Directions --- p.161 / Chapter Appendix A --- General Procedure, Physical Measurements and X-ray Diffraction Analysis --- p.164 / Chapter Appendix B --- NMR Spectra of Compounds --- p.166 / Chapter Appendix C --- Selected Crystallographic Data --- p.191

a series of complexes of the type MLnX where M=Cu(II), Ni(II), and Cr(III), L=β-diketonate (n=1 for Cu (II) and Ni(II), n=2 for Cr(III)) and X=bridging anion was synthesized in order to study the effect of the bridging group on the magnetic exchange interaction parameter, J.

The existence of complexes of that display non-innocence has been of interest in the field of coordination chemistry since the investigations of square-planar dithiolene complexes of the late transition metals in the 1960s. The ligands used in these systems are termed “non-innocent” when bound to a number of the late transition metals, because the orbital energy levels are similar to those of the central metal ion. This allows there to be significant electron delocalisation over the complex with the potential for the complexes to exist in a number of electronic states due to the combined electrochemical activity. In 1966, Jørgensen classified innocence as ligands that “allow oxidation states of the central atoms to be defined”, thus by this logic non-innocent ligands are defined as complexes where the precise oxidation states of the ligand and metal are ambiguously assigned. However it should be noted that no ligand is inherently non-innocent, but rather the ligand may behave in a non-innocent manner under the right circumstances. The qualification of non-innocence should therefore only be applied to combinations of metal and ligand that result in the aforementioned properties. In this thesis, the term “non-innocent” will be used to define ligands that often possess non-innocent behaviour when complexed to the metal centres they are bound to. A general form of ligand that displays non-innocent behaviour is that of the 1,2-bidentate moiety with an unsaturated carbon backbone. The chelating donor groups (X) are either O, NH, S, or a combination of the three. The central transition metal is generally a late metal that favours a square-planar geometry, because the planarity of the complex is crucial for electron delocalisation within the molecule and molecular interactions in the solid material. When the metal is nickel or platinum for example, their square-planar complexes with such ligands have shown threemembered electron-transfer series. Specific examples of ligands that have been shown to display non-innocent behaviour are those of catechol (1,2-dihydroxybenzene) and 1,2-diaminobenzene, where the unsaturated backbone is provided by a phenyl group. The electronic nature of these compounds has been extensively investigated by the groups of Pierpont and Lever, with focus on their redox and magnetic properties. The combined metal and ligand redox activity results in interesting magnetic behaviour, with potential for magnetic exchange interactions between a paramagnetic metal centre and the radical ligand or between two radical ligands mediated by a diamagnetic metal centre. This research has been advanced by Wieghardt and co-workers who have performed experimental and theoretical examination of non-innocent complexes of 1,2-substituted phenyl chelates, where the donor group is a combination of O and NH. These studies have focused on the understanding the nature of the metal-ligand interactions to apply to biological systems, such as those observed at the active site of enzymes that act upon molecules with similar moieties to the non-innocent ligands. Compounds of catechol may be referred to as dioxolenes in analogy to the sulfur-based dithiolenes. The deprotonated, dianionic form of catechol is known as catecholate (cat), which can be readily oxidised to the monoanionic o-semiquinone (SQ) and neutral o-benzoquinone (Q) forms. It has been seen that catecholate compounds can be described by localised electronic states with defined oxidation states, unlike many of the dithiolene class of molecules. However these states can exist in equilibrium with each other when the metal and ligand orbitals are close in energy, with differences in the charge and spin definition in what has been described as “valence tautomerism”. Therefore, although the complexes may not be seen as non-innocent by definition that their oxidation states are not ambiguous, it is still a useful description due to the potential for easily accessible charge states. Metal dithiolene complexes, where the metal is coordinated by one or more ligands with two S-donor atoms linked by a conjugated backbone, are one of the best researched of the non-innocent class of molecules. The square-planar bis-dithiolenes of the late transition metals have interesting magnetic, optical and electrical properties arising from the delocalised nature of the constituent metal and ligand orbitals, which has enabled their use for a wide range of applications such as non-linear optics, transistors and near-infrared switches. Of particular interest is the ability to fine tune the electrical properties to fit the application by changing the substituents on the core dithiolene moiety. For example, Anthopoulos has shown that by lowering the energy of the lowest unoccupied molecular orbital (LUMO), stable n-channel conductivity can be observed in field-effect transistors (FETs). Materials based on square-planar non-innocent complexes have been tested in FETs, and been seen to display field-effect mobilities as high as 10˗2 cm2 V˗1 s˗1 as with Ni bis(o-diiminobenzo-semiquinonate) complexes. Most of these molecules are based on conjugated, chelating ligands such as 1,2-diaminobenzene and the dithiolene class of molecules. Field-effects have also been observed in square-planar Pt complexes, where the conductivity is thought to arise from beneficial Pt-Pt bonds in addition to the π-stacking between molecules. Despite the similarity to the diaminobenzene and dithiolene counterpart, there are no reports of catechol-based materials displaying field-effect properties in the literature. Catechol compounds are well-researched in the field of biological chemistry due to the prevalence of the catechol moiety and enzymes with which it interacts in nature. However they have not been examined far beyond their simple coordination chemistry or chemical characterisation.

>Magister Scientiae - MSc / Electron-mediated nuclear plasma interactions (NPIs), such as Nuclear Excitation by Electron Capture (NEEC) or Transition (NEET), can have a signi cant impact on nuclear cross sections in High Energy Density Plasmas (HEDPs). HEDP environments are found in nuclear weapons tests, National Ignition Facility (NIF) shots and in the cosmos where nucleosynthesis takes place. This thesis explores the impact of NPIs on highly excited nuclei. This impact is understood to be more intense in highly-excited nuclei states in the quasi-contiuum which is populated by nuclear reactions prior to their decay by spontaneous -ray emission. Attempts thus far have failed in measuring the NEEC process, while NEET process has been observed experimentally. Direct observation of NPIs is hindered by the lack of a clear signature of their e ect in HEDP environments. Hence this should test a new signature for NPIs for highly-excited nuclei by investigating isomeric to ground state feeding from the isomeric state. An experiment was performed using the reactions 197Au(13C, 12C)198Au and 197Au(13C, 12C2n)196Au at Lawrence Berkeley National Laboratory in inverse kinematics with an 197Au beam of 8.5 MeV/u energy. Several measurements were performed with di erent target con gurations. The activated foils were counted at the low-background counting facility of Lawrence Livermore National Laboratory. From these data, the double isomeric to ground state ratio (DIGS) were extracted with the assistance of the decay equations that were included in the experiment. As the NPIs e ects are rather small the lines for analysis had to be chosen carefully so that the extracted ratios would not contain signi cant errors. The measured DIGS ratios were then compared with the result of the theoretical DIGS ratios. The results showed that the calculated DIGS ratios deviated substantially from unity although this was with large uncertainties. Because of the large errors obtained, the DIGS ratios were found to be inconclusive as a signature for detecting the e ects of NPIs such as angular momentum distribution changes in HEDP environments.

Lai, Yin Man. / Thesis submitted in: November 2008. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references. / Abstracts in English and Chinese. / ACKNOWLEDGEMENT --- p.I / ABSTRACT --- p.II / 摘要 --- p.IV / ABBREVIATIONS --- p.V / LIST OF COMPOUNDS --- p.VI / TABLE OF CONTENTS --- p.IX / Chapter CHAPTER 1 --- A 2-PYRIDYL AMIDO LIGAND CONTAINING A PENTAFLUOROPHENYL SUBSTITUENT --- p.1 / Chapter 1. l --- General Background --- p.1 / Chapter 1.2 --- Examples of Amido Ligands --- p.3 / Chapter 1.3 --- An overview on Amido Ligands Containing Electron-withdrawing Substituents --- p.5 / Chapter 1.4 --- Objectives of This Work --- p.7 / Chapter 1.5 --- Results and Discussion --- p.8 / Chapter 1.5.1 --- Preparation of HLC6F5 (1) and its Potassium Derivatives --- p.8 / Chapter 1.5.2 --- Physical Characterization of Compounds 1-3 --- p.10 / Chapter 1.5.3 --- Molecular Structures of Compounds 2 and 3 --- p.13 / Chapter 1.6 --- Experimentals for Chapter 1 --- p.19 / Chapter 1.7 --- References for Chapter 1 --- p.22 / Chapter CHAPTER 2 --- "ZIRCONIUM(IV), VANADIUM(III) AND CHROMIUM(III) COMPLEXES DERIVED FROM THE [N(C6F5)(2-CsH3N-6-ME)] LIGAND" --- p.27 / Chapter 2.1 --- "An Overview on Zr(IV), V(III) and Cr(III) Complexes Supported by 2-Pyridyl Amido Ligands" --- p.27 / Chapter 2.2 --- Recent Results from our Group --- p.32 / Chapter 2.3 --- Objectives of this work --- p.33 / Chapter 2.4 --- "Synthesis and Structures of Tris(amido) Complexes of Zr(IV), V(III) and CR(III)" --- p.34 / Chapter 2.4.1 --- "Synthesis of [Zr(LC6F5)3(Cl) ´Ø C7H8] (4), V(LC6F5)3 (5) and [Cr(LC6F5)3] (6)" --- p.34 / Chapter 2.4.2 --- Molecular Structures of [Zr(LC6F5)3(Cl)´ØC7H8] (4)f and [Cr(LC6F5)3] (6) --- p.37 / Chapter 2.5 --- Experimentals for Chapter 2 --- p.43 / Chapter 2.6 --- References for Chapter 2 --- p.45 / Chapter CHAPTER 3 --- "MANGANESE(II), IRON(II), COBALT(II) AND NICKEL(II) COMPLEXES OF THE [N(C6F5)(2-C5H3N-6-ME)] LIGAND" --- p.49 / Chapter 3.1 --- A Brief Review on Amides of the Late Transition Metals --- p.49 / Chapter 3.2 --- Examples of Late Transition Metal Complexes Supported by 2-Pyridyl Amido Ligands --- p.51 / Chapter 3.3 --- Objectives of our studies --- p.53 / Chapter 3.4 --- "Synthesis and Structures of Bis(amido) Complexes of Mn(II), Fe(II), Co(II) and NI(II)" --- p.54 / Chapter 3.4.1 --- "Synthesis of [M(LC6F5)2(tmeda)] (M = Mn (7), Fe (8), Co (9), Ni (10)]" --- p.54 / Chapter 3.4.2 --- Molecular Structures of Complexes 7-10 --- p.57 / Chapter 3.5 --- "Synthesis, Structure and Reactivity of a Mono(amido) Fe(II) Complex" --- p.61 / Chapter 3.5.1 --- Synthesis of [Fe(LC6F5)(CI)(tmeda)](11) --- p.61 / Chapter 3.5.2 --- Physical Characterization of Compound 11 --- p.62 / Chapter 3.5.3 --- Molecular Structures of Compound 11 --- p.62 / Chapter 3.5.4 --- Reactivity Studies of [Fe(LC6F5)(Cl)(tmeda)] (11) --- p.66 / Chapter 3.6 --- Synthesis of Fe(III) Tri(amido) Complex --- p.69 / Chapter 3.7 --- Experimentals for Chapter 3 --- p.70 / Chapter 3.8 --- References for Chapter 3 --- p.73 / Chapter CHAPTER 4 --- SUMMARY OF THE PRESENT RESEARCH WORK --- p.75 / TABLE OF APPENDIX --- p.79 / "General Procedures, Physical Measurements and X-Ray Structural Analysis" --- p.80 / 1HNMR of HCC6F5(1) --- p.82 / 13CNMR of HLC6F5(1) --- p.83 / 19FNMR of HLC6F5(1) --- p.84 / 1HNMR of [K(LC6F5)(tmeda)]2 (2) --- p.85 / 13CNMR OF [K(LC6F5)(tmeda)]2 (2)) --- p.86 / 19FNMR of [K(LC6F5)(TMEDA)]2 (2)) --- p.87 / 1HNMR of [K(LC6F5)(thf)2]2 (3) --- p.88 / 13CNMR of [K(LC6F5)(thf)2]2 (3) --- p.89 / 19FNMR OF [K(LC6F5)(THF)2]2 (3) --- p.90 / 1HNMR of Zr(LC6F5)3(Cl).(C7H8)] (4) --- p.91 / Selected crystallographic data of complexes 2 and 3 --- p.94 / Selected crystallographic data of complexes 4 and 6 --- p.95 / Selected crystallographic data of complexes 7 and 8 --- p.96 / Selected crystallographic data of complexes 9 and 10 --- p.97 / Selected crystallographic data of complex 11 --- p.98

Introduktion: Transitionsperioden är tiden då den nyutexaminerade sjuksköterskan omvandlas från sjuksköterskestudent till legitimerad sjuksköterska. De nyutexaminerade sjuksköterskorna måste ha kunskaper inom såväl omvårdnad som medicin för att kunna utföra omvårdnad i dagens komplexa sjukhusvård. Den nyutexaminerade sjuksköterskan behöver även socialiseras in i arbetsmiljön och förhålla sig till förordningar. Syfte: Belysa upplevelser av att vara nyutexaminerad sjuksköterska under det första året som yrkesverksam på sjukhus. Metod: Litteraturstudien utformades utifrån Polit och Beck’s (2017) nio steg. Databaserna som användes vad CINAHL och PubMed. Granskning av artiklarna gjordes utifrån granskningsmallar enligt Polit och Beck (2017). Resultatet baserades på 10 artiklar. Databearbetningen skedde på ett systematiskt sätt och resulterade i sex teman. Resultat: Artiklarna beskrev att de nyutexaminerade sjuksköterskornas upplevelser under det första året som yrkesverksamma präglades av det professionella självförtroendet. Det professionella självförtroendet både påverkade och påverkades av Upplevelsen av handledning och introduktion, Upplevelsen av den sociala arbetsmiljön, Upplevelsen av att kommunicera med vårdteamet, Upplevelsen av sin kompetens, Upplevelser och hantering av stressorer samt Upplevelsen av sjuksköterskeutbildningens betydelse. Slutsats: Generellt upplevde de nyutexaminerade sjuksköterskorna att det var svårt att uppnå en lyckad transition. Genom att belysa de nyutexaminerade sjuksköterskornas upplevelser kan det ge förståelse för den avancerade transitionen och vilka åtgärder som behöver vidtas.