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  • About
  • 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.
1

Invers polarisierte Phosphaalkene als Quelle reaktiver Sextett-Teilchen

Lassahn, Ulrich. January 2005 (has links)
Bielefeld, Universiẗat, Diss., 2005. / Dateiformat: tgz, Dateien im PDF-Format.
2

Alkylidenphosphan-substituierte Heterozyklen Synthese, Reaktivität und Strukturen /

Bozkurt, Serdal. Unknown Date (has links) (PDF)
Universiẗat, Diss., 2004--Bonn.
3

Zur Reaktivität der invers-polarisierten Phosphaalkene RP=C(NMe2)2 (R=t-Bu, Me3Si, H) gegenüber Übergangsmetallcarben-Komplexen

Meyer, Marco. Unknown Date (has links) (PDF)
Universiẗat, Diss., 2003--Bielefeld.
4

Phosphorus Centers in π-conjugated Systems

Öberg, Elisabet January 2012 (has links)
Single-molecular electronics and organic material electronics are expanding research fields that ultimately aim for a vast variety of different applications, ranging from organic light-emitting diodes, to novel ways to improve the performance and decrease the size of electronics components. To achieve these goals, research has to be focused both on the development of functional molecules, but also on device fabrication. The work of this thesis is focused on the development of synthetic routes towards novel molecules for potential organic electronics applications, together with an investigation of their optical and electronic properties. The first part of the thesis describes the synthesis of butadiyne-substituted and diacetylenic phosphaalkenes. Theoretical, spectroscopic and electrochemical techniques have been used to understand key steps during their synthesis, and to gain further information on the conjugative properties of their π-systems. A mechanism is proposed for the formation of the butadiyne-substituted and diacetylenic phosphaalkenes and it is shown that the phosphorus heteroatom is an intrinsic part of the π-conjugated system. The incorporation of the phosphorus heteroatom leads to decreased HOMO-LUMO gaps compared to all-carbon based reference compounds. In the second part of the thesis, acetylenic phosphaalkenes are utilized for the preparation of phosphaalkene-substituted phospholes. A first step towards the exploration of the difference in reactivity of the σ2, λ3 phosphaalkene-P and the σ3, λ3 phosphole-P is presented as the oxidation of the compounds by sulfur proceeds selectively at the σ3, λ3–P. Spectroscopic and electrochemical investigations show that the phosphaalkene is an integral part of the compounds’ π-systems, and induces a HOMO-LUMO gap decrease compared to reference compounds that lack the P=C substituent. The third part of this thesis presents an exploratory study concerning the suitability of metathesis reactions for the assembly of alkene-bridged phosphaalkenes.
5

Investigations of Opto-Electronically Interesting Materials Featuring Phosphorus-Carbon Double Bonds

Washington, Marlena Patrice 23 July 2010 (has links)
No description available.
6

Studies on PNP-Pincer Type Phosphaalkene Complexes Stabilized by a Fused-Ring Bulky Protection Group / 嵩高い縮環型保護基により安定化されたPNPピンサー型ホスファアルケン錯体に関する研究

Taguchi, Hiroomi 23 May 2018 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第21268号 / 工博第4496号 / 新制||工||1699(附属図書館) / 京都大学大学院工学研究科物質エネルギー化学専攻 / (主査)教授 小澤 文幸, 教授 大江 浩一, 教授 中村 正治 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM
7

Studies on PNP-Pincer Type Phosphaalkene Complexes of Iridium / PNPピンサー型ホスファアルケンイリジウム錯体に関する研究

Chang, Yunghung 23 May 2014 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第18471号 / 工博第3907号 / 新制||工||1600(附属図書館) / 31349 / 京都大学大学院工学研究科物質エネルギー化学専攻 / (主査)教授 小澤 文幸, 教授 辻 康之, 教授 中村 正治 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DGAM
8

Synthesis and Characterization of Molecules and π-Conjugated Materials Containing Low-Coordinate Phosphorus

Chen, Xufang January 2005 (has links)
No description available.

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