ARMSTRONG, D R and Mulvey, Robert and BARR, D and SNAITH, R and WRIGHT, D S and CLEGG, W and HODGSON, S M (1989) Dilithiation of N,N′-diphenylthiourea, PhNHC(S)NHPh, in HMPA: the unexpected structure of the product, [PhNPh)SLi·2HMPA]2, and supporting ab initio MO calculations on model systems. Journal of Organometallic Chemistry, 362 (1-2). C1-C4. ISSN 0022-328XFull text not available in this repository. (Request a copy from the Strathclyde author)
Ab initio calculations on mono- and di-lithiated derivatives of thiourea predict that Li atom(s) will bridge N and S centres, leading to lengthening of the bond and shortening of one or both of the bonds in thiourea. The synthesised complex of dilithiated diphenylthiourea, [PhNPh)SLi·2HMPA]2 (1) displays many of the structural features suggested by theory, having been shown by X-ray crystallography to contain monomeric units with SLi and N(μ2Li)N bonds, these monomers then being linked by N: → Li coordinations.
|Keywords:||dilithiation, crystal structures, Physical and theoretical chemistry, Materials Chemistry, Biochemistry, Organic Chemistry, Physical and Theoretical Chemistry, Inorganic Chemistry|
|Subjects:||Science > Chemistry > Physical and theoretical chemistry|
|Department:||Faculty of Science > Pure and Applied Chemistry|
|Depositing user:||Pure Administrator|
|Date Deposited:||14 Feb 2012 13:06|
|Last modified:||05 May 2016 00:19|