Thesis (Ph. D.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains xiv, 301 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 193-213).

Thesis (Ph. D.)--Michigan State University. Dept. of Chemistry, 2008. / Title from PDF t.p. (viewed Sept. 11, 2009). Includes bibliographical references. Also issued in print.

Thesis (PH. D)--University of Chicago, 1937. / Lithoprinted. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1982. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 241-253).

Thesis (Ph. D.)--Dept. of Chemistry and Dept. of Physics. University of Missouri--Kansas City, 2006. / "A dissertation in chemistry and physics." Advisor: James R. Durig. Typescript. Vita. Description based on contents viewed Jan. 29, 2007; title from "catalog record" of the print edition. Includes bibliographical references (leaves 447-460). Online version of the print edition.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1967. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

The purpose of this work was the preparation of a new class of arylhydrazone reagents. When combined with a mixture of ketones and aldehydes, these new reagents would give derivatives different from those given by current arylhydrazone reagents. These derivatives could be separated by crystallization or chromatography and could then be easily characterized by x-ray crystallography or nuclear magnetic resonance (NMR).

Thesis (Ph. D.)--West Virginia University, 1998. / Title from document title page. "September 22, 1998." Document formatted into pages; contains xii, 155 p. : ill. Includes abstracts. Includes bibliographical references.

No description available.

Les hydrazines utilisées en propulsion sont aujourd’hui identifiées par la réglementation REACH comme des substances extrêmement préoccupantes (SVHC) et leur utilisation est par conséquent menacée. Les HEDM (High Energy Density Material) représentent une classe de composés à l’architecture polyazotée voire strictement azotée dont les performances énergétiques théoriques sont en rupture avec les technologies actuelles et dont la décomposition en N2 offrirait une réponse à cette règlementation. De plus, leur utilisation simplifierait la technologie des lanceurs et permettrait d’abaisser leur coût. Deux candidats potentiels ont donc été proposés par les tutelles du laboratoire en raison de leurs excellentes performances théoriques : la triaziridine (N3H3) et la tétrazétidine (N4H4). L’objectif général de cette thèse est de développer de nouvelles méthodologies de synthèse de composés polyazotés et d’étudier leur réactivité afin de valider l’accès aux structures originales telles que les cycles triaziridine et tétrazétidine. Une toute nouvelle méthodologie d’homologation par ajout d’azodicarboxylates permettant d’accéder à des systèmes polyazotés linéaires supérieurs (N3, N4, N5, N6…) a été mise au point. Des preuves structurales de ces enchainements azotés inédits ont été obtenues par DRX. La réactivité par activation régiosélective et par oxydation des systèmes synthétisés a ensuite été étudiée afin d’accéder aux structures polyazotées cycliques / Hydrazines for propulsion have been identified by REACH regulation as Substances of Very High Concern (SVHC) and their use is therefore threatened. High Energy Density Materials (HEDM) represent a class of polynitrogen compounds with computed energetic performances breaking away from existing technologies. Besides solving toxicity issues thanks to their decomposition in molecular nitrogen, their use would highly simplify launcher’s technologies and decreases their cost. Two candidates have been proposed by the CNES and ArianeGroup to replace hydrazines: triaziridine (N3H3) and tetrazetidine (N4H4). The main goal of this thesis is to develop new methodologies for the synthesis of polynitrogen compounds and to investigate their reactivity to access to original structures such as triaziridine and tetrazetidine. Homologation of simple nitrogen-based compounds with azodicarboxylates enabled us to access new original superior polynitrogen molecules (N3, N4, N5, N6…). Structural evidences of these new polynitrogen backbones have been obtained by X-ray diffraction. Their reactivity by regioselective activation and by oxidation has been studied to access cyclic polynitrogen structures