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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 501 to 510 of 5772 (0.04 seconds)Spelling suggestions: "subject:"arganic astrochemistry"" "subject:"arganic semiochemistry""
| 501 |
A study of some aspects of medium-ring chemistryHext, Nicholas Mark January 1989 (has links)
No description available.
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| 502 |
Novel synthetic methods for preparation of cyclic compoundsHaughan, Alan F. January 1992 (has links)
No description available.
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| 503 |
The stabilisation of transient organotransition metal radicalsManners, I. January 1985 (has links)
No description available.
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| 504 |
Synthesis, occurrence and low temperature diagenesis of steroid hydrocarbonsPeakman, T. M. January 1986 (has links)
No description available.
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| 505 |
Studies towards the total synthesis of pseudomonic acid CStephen, Rosamund Anne January 1997 (has links)
No description available.
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| 506 |
Synthetic studies towards C-glycosyl amino acids : Part I, The synthesis of C-glycosyl amino acids using zinc reagents; Part II, Approaches towards the synthesis of C-glycosyl amino acids using an imino ene reactionRamaya, Sharn January 2001 (has links)
No description available.
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| 507 |
Structural and theoretical studies of organometallic complexesStratford, Susan E. January 1994 (has links)
This thesis reports structural studies using X-ray crystallography and Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy and theoretical studies using Extended Hükel Molecular Orbital (EHMO) calculations and the Cambridge Structural Database (CSD) on a wide range of organometallic compounds. Crystal structure determinations have been undertaken on the following complexes: [Bi(SCN)(Mo(CO)3Cp)2] (1), [BiBr(Ph)(Mo(CO(3Cp)] (2), [PPN][BiCl3(Mo(CO)3Cp)] (3), [PPh4][BiBr2(Mo(CO)3Cp)2] (4), [BiPh2(HMPA)2][BF4] (5) and K[K18-C-6]2[Bi(SCN)6] (6). Complexes (1) and (2) form one-dimensioanl polymeric chains via thiocyanate and bromine bridging respectively, illustrating the Lewis acidity of the bismuth (III) centre. Complex (3) dimerises in the solid state to from a Bi2Cl2 ring via chlorine bridging. Complexes (4) and (5) exist as separate monomeric cationic and anionic units with no intermolecular interactions. Complex (6) consists of a K with six intermolecular contacts, four inplant K---N contacts from independent octahedral [Bi(SCN)6]3- units and two K---O contacts form a K-crown ether above and below the plane. EXAFS studies have been undertaken on a wider range of systems, including (i) the rearrangement of the spiked triangular cluster [Ru3Pt(-H))(4-2-CC^tBu)(CO)_9(dppe)] to the butterfly cluster [Ru_3Pt (4-2-CCH^tBu)(CO)_9(dppe)] followed over a period of 12 hours, (ii) cobalt doped silica-gel glasses and (iii) thiolato and selenato complexes of cadmium and zinc. One of the main aims of the EXAFS studies is to determine how the complexes under investigation aggregate in the solid state and to what extent that association breaks down in solution.
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| 508 |
Synthetic and biosynthetic studies on barbamideNguyen, Viet-Anh A. January 2000 (has links)
No description available.
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| 509 |
The synthesis and reactivity of di- and polynuclear mixed metal complexesMarsden, C. January 1985 (has links)
No description available.
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| 510 |
The reactions of transition metal hydrocarbon complexesSheridan, J. B. January 1985 (has links)
No description available.
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