Accession Number : AD0716366

Title :   Problems Relating to Amido-Derivatives of Metals and Metalloids.

Descriptive Note : Final technical rept. 1969-1970,

Corporate Author : SUSSEX UNIV BRIGHTON (ENGLAND) CHEMICAL LAB

Personal Author(s) : Keppie,S. A. ; Lappert,M. F. ; McMeeking,J. ; Sanger,A. R. ; Srivasta,R. C.

Report Date : OCT 1970

Pagination or Media Count : 130

Abstract : The chemistry of the novel Ti(II) and Ti(III) amides, such as Ti(NMe2)2, Ti(NMe2)3 and (Pi-C5H5)2TiNMe2 is described. Physical properties, including i.r., u.v., n.m.r., e.s.r., and mass spectra have been measured and interpreted structurally. The compounds are highly reactive and provide convenient sources for other d1 and d2 Ti complexes. The polymerisation of acrylonitrile initiated by titanium tetradimethylamide is described and discussed in some detail. A mechanism which adequately accounts for the behaviour is suggested and the kinetic consequences of the scheme are related to the experimental data. Related systems are described. (Author)

Descriptors :   (*TITANIUM COMPOUNDS, *COMPLEX COMPOUNDS), (*ACRYLONITRILE POLYMERS, *POLYMERIZATION), AMINES, TRANSITION METALS, SYNTHESIS(CHEMISTRY), CHEMICAL REACTIONS, REACTION KINETICS, NITRILES, GREAT BRITAIN

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE