Trimethylplatinum(iv) halide complexes of pyrazolylbipyridyl ligands. crystal structure of [PtIMe3{6-(3,5-DIMETHYLPYRAZOL-1-YL)-2,2′-BIPYRIDINE}]
作者:Andrew Gelling、Keith G. Orrell、Anthony G. Osborne、Vladimir Šik、Michael B. Hursthouse、Simon J. Coles
DOI:10.1016/0277-5387(96)00063-0
日期:1996.6
Abstract Trimethylplatinum(IV) halide tetramers [(PtXMe 3 ) 4 ] reacted with pyrazolylbipyridyl ligands to afford stable octahedral complexes of type fac-[PtXMe 3 L] [L = (6-pyrazol-l-yl)-2,2′-bipyridine (pbipy), X = Cl, I; L = 6-(4-methylpyrazol-1-yl)-2,2′-bipyridine (mpbipy) or 6-(3,5-dimethylpyrazol-1-yl)-2,2′-bipyridine (dmpbipy), X = I]. Both bipyridyl and pyridyl/pyrazolyl coordinated complexes of
摘要三甲基铂(IV)卤化四聚物[(PtXMe 3)4]与吡唑基吡啶基配体反应,得到稳定的fac- [PtXMe 3 L]型八面体络合物[L =(6-吡唑-1-基)-2,2'-联吡啶(pbipy),X = Cl,I; L = 6-(4-甲基吡唑-1-基)-2,2'-联吡啶(mpbipy)或6-(3,5-二甲基吡唑-1-基)-2,2'-联吡啶(dmpbipy),X =一世]。pbipy和mpbipy的联吡啶基和吡啶基/吡唑基配位复合物都是在溶液中形成的,其中“联吡啶基”配位物种占主导地位(> 95%)。通过1 H NMR检测到两个配位物质之间的通量交换。[PtIMe 3(dmpbipy)]的晶体结构显示了与Pt IV唯一的“联吡啶”配位,吡唑基侧链环旋转了74.34和77。与两个晶体学独立的分子中的吡啶基环平面相距39°。版权所有©1996 Elsevier Science Ltd