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Título: | Di-μ-methano-lato-bis-[( 4-tetra-fluoro-benzobarrelene) rhodium(I)] |
Autor: | García-Orduña, Pilar CSIC ORCID; Mena, Inmaculada CSIC; Casado, Miguel A. CSIC ORCID; Lahoz, Fernando J. CSIC ORCID | Fecha de publicación: | 2012 | Editor: | International Union of Crystallography | Citación: | Acta Crystallographica Section C: Crystal Structure Communications 68(4): m113- m116 (2012) | Resumen: | The 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-[6.2.2.0 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. | URI: | http://hdl.handle.net/10261/64553 | DOI: | 10.1107/S0108270112012930 | Identificadores: | doi: 10.1107/S0108270112012930 issn: 0108-2701 e-issn: 1600-5759 |
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tetrafluorobenzobarrelene_Garcia.pdf | 280,46 kB | Adobe PDF | Visualizar/Abrir |
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