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Issue 1, 2016
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Expanding the family of heterobimetallic Bi–Rh paddlewheel carboxylate complexes via equatorial carboxylate exchange

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Abstract

Five novel homoleptic heterobimetallic bismuth(II)–rhodium(II) carboxylate complexes—BiRh(TPA)4 (1), BiRh(but)4 (2), BiRh(piv)4 (3), BiRh(esp)2 (4), and BiRh(OAc)4 (5)—were synthesized in good yields by equatorial ligand substitution starting from BiRh(TFA)4 (TPA = triphenylacetate, but = butyrate, piv = pivalate, esp = α,α,α′,α′-tetramethyl-1,3-benzenedipropionate, OAc = acetate, and TFA = trifluoroacetate). We report here 1H and 13C{1H} NMR spectra and cyclic voltammograms for complexes 1–4, and IR spectra for all complexes. Irreversible redox waves appear between −1.4 to −1.5 V for [BiRh]3+/4+ couples and 1.3 to 1.5 V vs. Fc/Fc+ for [BiRh]4+/5+ couples for complexes 1–4 indicating a wide range of stability for the compounds. The X-ray crystal structure of 1 reveals a Bi–Rh distance of 2.53 Å.

Graphical abstract: Expanding the family of heterobimetallic Bi–Rh paddlewheel carboxylate complexes via equatorial carboxylate exchange

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Supplementary files

Article information


Submitted
24 Sep 2015
Accepted
17 Nov 2015
First published
19 Nov 2015

Dalton Trans., 2016,45, 50-55
Article type
Communication
Author version available

Expanding the family of heterobimetallic Bi–Rh paddlewheel carboxylate complexes via equatorial carboxylate exchange

T. L. Sunderland and J. F. Berry, Dalton Trans., 2016, 45, 50
DOI: 10.1039/C5DT03740A

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