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Di-μ-methano-lato-bis-[( 4-tetra-fluoro-benzobarrelene) rhodium(I)]

AuthorsGarcía-Orduña, P. CSIC ORCID; Mena, Inmaculada CSIC ORCID; Casado, Miguel A. CSIC ORCID; Lahoz, Fernando J. CSIC ORCID
Issue Date2012
PublisherInternational Union of Crystallography
CitationActa Crystallographica Section C: Crystal Structure Communications 68(4): m113- m116 (2012)
AbstractThe versatile synthetic precursor methano-late-bridged title rhodium complex, [Rh 2(CH 3O) 2(C 12H 6F 4) 2] or [Rh(-OCH 3)(tfbb)]2 [tfbb = tetra-fluoro-benzobarrelene or 3,4,5,6-tetra-fluoro-tricyclo-[ 2,7]dodeca-2(7),3,5,9,11-penta-ene], has been structurally characterized. The asymmetric unit contains half a mol-ecule that can be expanded via a twofold axis. The title compound has been shown to be a dinuclear rhodium complex where each metal centre is coordinated by two O atoms from two bridging methano-late groups and by the olefinic bonds of a tfbb ligand. Comparison of the bite angles of tfbb, norbornadiene (nbd) and cyclo-octa-diene (cod) olefins in their 4-coordination to rhodium reveals similarities between the tfbb and nbd ligands, which are much more rigid than cod. The short distance found between the distorted square-planar metal centres [2.8351 (4) Å] has been related to the syn conformation of the folded core RhORhO ring. © 2012 International Union of Crystallography.
Identifiersdoi: 10.1107/S0108270112012930
issn: 0108-2701
e-issn: 1600-5759
Appears in Collections:(ISQCH) Artículos
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