Studies on phosphaamidines, phosphinodiimines, and diphosphanes

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dc.contributor.authorMokhtabad Amrei, Leila
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorBoeré, René T.
dc.date.accessioned2016-01-15T22:18:28Z
dc.date.available2016-01-15T22:18:28Z
dc.date.issued2015
dc.degree.levelPh.Den_US
dc.description.abstractThe synthesis of a new neutral phosphaamidine (Dipp)N=C(CH3)P(Dipp) and new protonated phosphaamidines ((Dipp)HN+=C(R)PH(Dipp), R = tBu, CH3, pCH3O-Ph and Dipp = 2,6-diisopropylphenylphosphane are described. The protonated phosphaamidines have Z-anti(N=C) geometry in the solid state. A new phosphinodiimine (Dipp)P((tBu)C=N(Dipp))2 and a new amidinophosphaalkene (Dipp)P=C(CH3)-N(Dipp)-C(CH3)=N(Dipp) are described which were synthesized by using the related phosphaamidines as starting materials. The substitution at the carbon backbone plays a significant role in isomerisation and for the geometric preference of these compounds in solution and in the solid state. A new diphosphane (Dipp)HP-PH(Dipp), which was first observed as a side product while making phosphaamidines, was crystallographically characterized. All of these compounds, including phosphaamidines, phosphinodiimines, and diphosphanes, display isomerism in solution which has been studied through 1D and 2D (1H, 13C, 31P) nuclear magnetic resonance and solid-state NMR spectroscopies, X-ray crystallography, IR and Raman in the case of (Dipp)HP-PH(Dipp), spectroscopies and Hybridge Density Functional Theory calculations.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/3864
dc.language.isoen_CAen_US
dc.proquest.subject0488en_US
dc.proquest.subject0486en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta : University of Lethbridge, Dept. of Chemistry and Biochemistryen_US
dc.publisher.departmentDepartment of Chemistry and Biochemistryen_US
dc.publisher.facultyArt and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectamidinophosphaalkeneen_US
dc.subjectcarbon backboneen_US
dc.subjectisomerisationen_US
dc.subjectneutral phosphaamidineen_US
dc.subjectprotonated phosphaamidineen_US
dc.subjectsynthesisen_US
dc.titleStudies on phosphaamidines, phosphinodiimines, and diphosphanesen_US
dc.typeThesisen_US
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