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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

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Canty, AJ and Honeyman, RT and Skelton, BW and White, AH (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

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Abstract

The 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.

Item Type: Article
Journal or Publication Title: Journal of Organometallic Chemistry
Page Range: pp. 277-288
ISSN: 0022-328X
Identification Number - DOI: 10.1016/0022-328X(90)85417-W
Additional Information: The definitive version is available at http://www.sciencedirect.com
Date Deposited: 14 Jan 2008 21:38
Last Modified: 18 Nov 2014 03:27
URI: http://eprints.utas.edu.au/id/eprint/2874
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