TY  - JOUR
N1  - The definitive version is available at http://www.sciencedirect.com
ID  - epprod2953
UR  - http://dx.doi.org/10.1016/0022-328X(90)85197-7
IS  - 1
A1  - Canty, AJ
A1  - Honeyman, RT
A1  - Skelton, BW
A1  - White, AH
Y1  - 1990///
N2  - The reaction of [PtMe2(SEt2)]2 with tripodal nitrogen donor ligands and iodine in dichloromethane gives diiododimethylplatinum(IV) complexes, PtI2Me2{(pz)2(L)
CH-N,N?}, in which the N,N?-bidentate ligands are trans to the cis-PtMe2 group and have one uncoordinated donor group. The bis(pyrazol-l-yl)(thien-2-yl)methane complex, PtI2Me2{(pz)2(thi)CH-N,N?}, has Pt-I bond lengths of 2.6199(7) and 2.6649(6) A for the trans-PtI2 group, and Pt-C bond lengths of 2.070(7) and 2.097(9) A, and Pt-N bond lengths of 2.181(5) and 2.192(6) A. Complexes of (pz)2(L)CH [L = N-methylimidazol-2-yl (mim), pyridin-2-yl (py)] exist as a mixture of isomers, with an isomer ratio as expected for a random distribution of coordinated
pz and L donor groups, 2:1 for 2pz:(pz + L) coordination. The complexes of (pz)3CH, (pz)2(mim)CH, and (pz)2(py)CH are converted into [PtIMe2{(pz)2(L)CH-N,N?,N?}]I on heating, and the cations of the unsymmetrical tridentate ligands (pz)2(L)CH (L = py, mim) also exist as isomers. The isomers have the donor group L trans to a methyl or iodo group, where the ratio (L trans to Me)(L tram to I) is
2:1 for L = py (as expected for a random distribution of isomers) and 1: 1 for L=mim.
JF  - Journal of Organometallic Chemistry
VL  - 396
SN  - 0022-328X
TI  - Synthesis and isomerism of neutral and cationic
dimethylplatinum(IV) complexes. Crystal structure of the bis(pyrazol-1-yl)(thien-2-yl)methane complex
PtI2Me2{(pz)2(thi)CH-N,N?}
SP  - 105
AV  - restricted
EP  - 113
ER  -