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′}
作者:Allan J. Canty、R.Thomas Honeyman、Brian W. Skelton、Allan H. White
DOI:10.1016/0022-328x(90)85197-7
日期:1990.10
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-1-yl)(thien-2-yl)methane complex, PtI2Me2(pz)2(thi)CH-N,N′}, has PtI bond lengths of 2.6199(7) and 2.6649(6)
[PtMe 2(SEt 2)] 2与三脚形氮供体配体和碘在二氯甲烷中的反应得到二碘二甲基铂(IV)络合物PtI 2 Me 2 (pz)2(L)CH- N,N' },的N,N' -bidentate配体是反式到顺式-PtMe 2基团和具有一个不协调的供体基团。双(吡唑-1-基)(噻吩-2-基)甲烷配合物PtI 2 Me 2 (pz)2(thi)CH- N,N' }的PtI键长为2.6199(7)反式-PtI为2.6649(6)Å2组,PtC键长为2.070(7)和2.097(9)Å,PtN键长为2.181(5)和2.192(6)Å。(pz)2(L)CH [L = N-甲基咪唑-2-基(mim),吡啶-2-基(py)]的配合物以异构体混合物的形式存在,其异构体比例符合随机分布的预期pz和L供体基团的比例,对于2pz为2:1:(pz + L)协调。(pz)3 CH,(pz)2(mim)