Crystal structure of an unusual bis(fluorous phosphine) ruthenium(III) complex derived from a fluorous Grubbs' catalyst

被引：25

作者：

da Costa, Rosenildo Correa ^{[1
]}

Hampel, Frank ^{[1
]}

Gladysz, J. A. ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Inst Organ Chem, D-91054 Erlangen, Germany

来源：

POLYHEDRON | 2007年 / 26卷 / 03期

关键词：

fluorous; phosphine; ruthenium; crystal structure; conformation; helices; Grubbs' catalyst;

D O I：

10.1016/j.poly.2006.08.015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Attempted crystallization of (H(2)IMes)RuCl2(P(CH2CH2Rf8)(3))(=CHPh) (H2IMeS = 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene; R-18 = (CF2)(7)CF3) in air affords dark red needles of the octahedral ruthenium(III) salt [H3IMeS](+) trans- [RuCl4(P(CH2CH2Rf8)(3))(2)](-), which is structurally characterized. Only crystal structures of square planar adducts of fluorous alkylphosphines have been determined to date. The bond lengths and angles associated with the cation and RUCl4L2 core are similar to those in related compounds. The lattice exhibits fluorous domains unlike those in square planar complexes, and the ponytail conformations are analyzed in detail. The NCHN proton of the cation is hydrogen bonded to two chloride ligands of the anion, and the CH2CH2 "backside" is directed at two chloride ligands of another anion, leading to non-fluorous channels in the lattice. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：581 / 588

页数：8

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