Synthesis of platinum complexes of 2-methyl-2,4,6-tris(trifluoromethyl)pyran. X-Ray crystal structure of (cyclo-octa-1,5-diene)[2-methyl-2,4,6-tris(trifluoromethyl)pyran]platinum
作者:Aristides Christofides、Judith A. K. Howard、Jennifer A. Rattue、John L. Spencer、F. Gordon A. Stone
DOI:10.1039/dt9800002095
日期:——
three CF3 substituents bent away from this plane to the far side from the platinum, while the Me substituent projects from the plane on the near side to the metal atom. Reaction of [Pt[graphic omitted](CF3)Me}(cod)] with PPh3 affords [Pt[graphic omitted](CF3)Me}(PPh3)2]. Related complexes [Pt[graphic omitted](CF3)Me}L2](L = CNBut or CNC6H3Me2-2,6) are obtained by reacting 2-methyl-2,4,6-tris(trifluoromethyl)pyran
双(环辛-1,5-二烯)与2-甲基-2,4,6-三(三氟甲基)铂发生反应吡喃,得到络合物[铂η 2 - [图形省略](CF 3)Me} (鳕鱼)]。氟-19,1个H和13 C NMR光谱表明,吡喃配体η 2 -CO-统筹到铂。为了严格定义结构,在218 K下进行了X射线衍射研究。晶体是三斜晶系,空间群P,Z = 2,在晶胞参数a = 10.136(12),b = 9.062( 11),c = 11.455(9)Å,α= 93.22(8),β= 106.23(8)和γ= 109.32(9)°。的结构进行了改进,以ř 0.056([R '0.057)4个832独立反射与2.9⩽2θ⩽50°(钼ķ α X -辐射)。的X射线结构测定证实,吡喃配体是η 2 -CO-统筹与铂原子。此外,该连接使得铂原子连接到具有C(Me)(CF 3)取代基的C C双键上。吡喃环基本上是平面的,三个CF 3取代基从