Decarboxylation reactions of alkyne-carboxylic acids as a route to multiply bonded [Re2]n+μ-alkyne and μ-carbyne complexes

Jitendra K. Bera; Phillip E. Fanwick; Richard A. Walton

doi:10.1039/B008265L

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Decarboxylation reactions of alkyne-carboxylic acids as a route to multiply bonded [Re₂]ⁿ⁺ μ-alkyne and μ-carbyne complexes

Jitendra K. Bera,^a Phillip E. Fanwick^a and Richard A. Walton*^a

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* Corresponding authors

^a Department of Chemistry, Purdue University, 1393 Brown Building, West Lafayette, USA
E-mail: rawalton@purdue.edu

Abstract

Multiply bonded organometallic complexes Re₂(μ-Cl)(μ-η²-HCCH)Cl₄(μ-dppm)₂ (2) and Re₂(μ-Cl)(μ-CCH₂CH₃)Cl₄(μ-dppm)₂ (3) are formed upon refluxing Re₂(μ-O₂CCH₃)Cl₄(μ-dppm)₂ (1) with HO₂CC [triple bond, length as m-dash] CCO₂H and CH₃CCCO₂H, respectively; these reactions are believed to proceed via the in situ formation of the corresponding metal alkynoates and the crystal structures of 2 and 3 show that the Re–Re distances of 2.6567(5) and 2.5277(6) Å are in accord with Re–Re bond orders of 1.5 and 2, respectively.

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Supplementary files

Crystal structure data TXT (49K)

Article information

DOI: https://doi.org/10.1039/B008265L
Article type: Communication
Submitted: 13 Oct 2000
Accepted: 30 Nov 2000
First published: 21 Dec 2000

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J. Chem. Soc., Dalton Trans., 2001, 109-110

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Decarboxylation reactions of alkyne-carboxylic acids as a route to multiply bonded [Re₂]ⁿ⁺ μ-alkyne and μ-carbyne complexes

J. K. Bera, P. E. Fanwick and R. A. Walton, J. Chem. Soc., Dalton Trans., 2001, 109 DOI: 10.1039/B008265L

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Journal of the Chemical Society, Dalton Transactions