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

Rosenildo  Da Costa; Frank Hempel; John A. Gladysz

doi:10.1016/j.poly.2006.08.015

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

Rosenildo Da Costa, Frank Hempel, John A. Gladysz

Faculty of Computing, Engineering and Science

Research output: Contribution to journal › Article › peer-review

Abstract

Attempted crystallization of (H₂IMes)RuCl₂(P(CH₂CH₂R_f8)₃)(=CHPh) (H₂IMes = 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene; R_f8 = (CF₂)₇CF₃) in air affords dark red needles of the octahedral ruthenium(III) salt [H₃IMes]⁺trans-[RuCl₄(P(CH₂CH₂R_f8)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.

Original language	English
Pages (from-to)	581–588
Journal	Polyhedron
Volume	26
Issue number	3
DOIs	https://doi.org/10.1016/j.poly.2006.08.015
Publication status	Published - 2007

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title = "Crystal structure of an unusual bis(fluorous phosphine) ruthenium(III) complex derived from a fluorous Grubbs{\textquoteright} catalyst",

abstract = "Attempted crystallization of (H2IMes)RuCl2(P(CH2CH2Rf8)3)(=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.",

author = "{Da Costa}, Rosenildo and Frank Hempel and Gladysz, {John A.}",

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doi = "10.1016/j.poly.2006.08.015",

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T1 - Crystal structure of an unusual bis(fluorous phosphine) ruthenium(III) complex derived from a fluorous Grubbs’ catalyst

AU - Da Costa, Rosenildo

AU - Hempel, Frank

AU - Gladysz, John A.

PY - 2007

Y1 - 2007

N2 - Attempted crystallization of (H2IMes)RuCl2(P(CH2CH2Rf8)3)(=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.

AB - Attempted crystallization of (H2IMes)RuCl2(P(CH2CH2Rf8)3)(=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.

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DO - 10.1016/j.poly.2006.08.015

M3 - Article

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VL - 26

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JO - Polyhedron

JF - Polyhedron

IS - 3

ER -

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

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