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

abstract

• Attempted crystallization of (H2IMes)RuCl2(P(CH2CH2Rf8)3)({double bond, long}CHPh) (H2IMes = 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene; Rf8 = (CF2)7CF3) 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. 2006 Elsevier Ltd. All rights reserved.

authors

• Gladysz, John

published proceedings

• POLYHEDRON

author list (cited authors)

• da Costa, R. C., Hampel, F., & Gladysz, J. A.

citation count

• 26

complete list of authors

• da Costa, Rosenildo Corrêa||Hampel, Frank||Gladysz, JA

publication date

• February 2007

publisher

• Elsevier  Publisher

published in

• Polyhedron  Journal

keywords

• Conformation
• Crystal Structure
• Fluorous
• Grubbs' Catalyst
• Helices
• Phosphine
• Ruthenium

Digital Object Identifier (DOI)

• 10.1016/j.poly.2006.08.015

start page

• 581

end page

• 588

volume

• 26

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.poly.2006.08.015