Reactions of bis(ethylene)(tricyclohexyl- and triphenyl-phosphine)platinum with quinones. Crystal structure of ethylene(2–3-η-2,3,5,6-tetramethylbenzo-1,4-quinone)(tricyclohexylphosphine)platinum
作者:Michael J. Chetcuti、Judith A. Herbert、Judith A. K. Howard、Michel Pfeffer、John L. Spencer、F. Gordon A. Stone、Peter Woodward
DOI:10.1039/dt9810000284
日期:——
that although the C2H4 group is undergoing rapid rotation, the η2-bonded quinone is rigid on the n.m.r. time scale. In contrast, in the derivatives from 2,6-dimethyl-, 2,6-di-t-butyl-, 2,6-dimethoxy-, and 2,3,5,6-tetramethyl-benzo-1,4-quinone, the quinone ligands are also undergoing dynamic behaviour. The η2 ground-state structure was established by an X-ray diffraction study on the compound [Pt(η2-C
一系列络合物[PT(η的2 -quinone)(C 2 H ^ 4)P(环-C 6 H ^ 11)3 }]已准备通过处理[PT(C 2 H ^ 4)2 P(环C 6 H 11)3 }]与苯并-1,4-醌。碳13 nmr对包含配体2,3-二甲基-,2,5-二甲基-,2,5-二苯基-苯并-1,4-醌和萘-1,4-醌的化合物的研究表明,尽管的C 2 ħ 4组正在经历快速旋转时,η 2键合的醌在nmr时间尺度上是刚性的。相反,在2,6-二甲基-,2,6-二叔丁基-,2,6-二甲氧基-和2,3,5,6-四甲基-苯并-1,4-醌的衍生物中,醌配体也正在经历动态行为。的η 2基态结构通过已建立的X化合物[铂(η射线衍射研究2 -C 6我4 Ò 2)(C 2 H ^ 4)P(环-C 6 H ^ 11)3 } ]。在晶格参数为a = 9.818(3),b的晶胞中,晶体为三斜晶,空间群P,Z = 2= 10