Synthesis and structural studies of tripodal and planar [N-C-N]- intramolecular coordination systems involving pyrazole donor groups, including oxidative addition of an aryl-bromine bond to platinum(II). Crystal structures of [PtClMe2{(pz)2CR(CH2)-N,N',C"}] with R = Me or CH2Cl
Canty, A.J. and Honeyman, R.T. and Skelton, B.W. and White, A.H. (1990) Synthesis and structural studies of tripodal and planar [N-C-N]- intramolecular coordination systems involving pyrazole donor groups, including oxidative addition of an aryl-bromine bond to platinum(II). Crystal structures of [PtClMe2{(pz)2CR(CH2)-N,N',C"}] with R = Me or CH2Cl. Journal of Organometallic Chemistry, 389 (2). pp. 277-288. ISSN 0022-328X ![[img]](http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png) | PDF - Full text restricted - Requires a PDF viewer 881Kb | |
Official URL: http://dx.doi.org/10.1016/0022-328X(90)85417-W AbstractThe complex [PtMe2(mu-SEt2)]2 undergoes oxidative addition reactions with chloro-2,2-bis(pyrazol-l-yl)propanes and 2,6-(pzCH2)2C6H3Br to form platinum(IV) complexes PtClMe2{(pz)2CR(CHX)-N,N’,C”} and PtBrMe2{2,6-(pzCH2)2C6H3-
N, N’,C”}, respectively, with the ligands present as tripodal [N-C-N]- systems. Structural studies of two of the complexes show distorted octahedral geometry,
‘fac-PtClC2N2', with (pz)2CMeCH2- and (pz)2C(CH2Cl)CH2- forming NPtN and NPtC angles at platinum ca. 7-12 degrees less than 90 degrees. The reagent 1,3-(pzCH2)2C6H4 undergoes cyclometallation with palladium(II) acetate to form Pd(O2CMe){2,6-(pzCH2)2C6H3-N,N’,C”}, which has the ligand present as a planar [N-C-N]- donor. Repository Staff Only: item control page
|