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Coordination complexes of chromium(0) with a series of 1,3-diphenyl-6-aryl-fulvenes.

ABSTRACT: The synthesis and structural properties of a series of chromium tricarbonyl 'piano-stool' complexes bearing substituted penta-fulvene ligands were studied. The complexes, tricarbon-yl(1,3,6-tri-phenyl-fulvene)chromium(0) benz-ene hemisolvate, [Cr(C24H18)(CO)3]·0.5C6H6 (I), tricarbon-yl[1,3-di-phen-yl-6-(3-vinyl-phen-yl)fulvene]chromium(0), [Cr(C26H20)(CO)3] (II), and tricarbon-yl[1,3-diphenyl-6-(pyren-1-yl)fulvene]chromium(0), [Cr(C34H22)(CO)3] (III), each have a distorted octa-hedral geometry, with the fulvene coordinated in a ?-?2:?-?2:?-?2 fashion. Significant deviation of the exocyclic fulvene double bond from the cyclo-penta-diene plane accompanies coordination. Evidence of non-covalent ?-? inter-actions was observed in both (I) and (III), with centroid-to-centroid distances ranging from 3.330?(8) to 3.494?(8)?Å.

SUBMITTER: Peloquin AJ 

PROVIDER: S-EPMC6127717 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Coordination complexes of chromium(0) with a series of 1,3-diphenyl-6-aryl-fulvenes.

Peloquin Andrew J AJ   Smith Madelyn B MB   O'Connell Bryce J BJ   Ghiassi Kamran B KB   Balaich Gary J GJ   Iacono Scott T ST  

Acta crystallographica. Section E, Crystallographic communications 20180810 Pt 9

The synthesis and structural properties of a series of chromium tricarbonyl 'piano-stool' complexes bearing substituted penta-fulvene ligands were studied. The complexes, tricarbon-yl(1,3,6-tri-phenyl-fulvene)chromium(0) benz-ene hemisolvate, [Cr(C<sub>24</sub>H<sub>18</sub>)(CO)<sub>3</sub>]·0.5C<sub>6</sub>H<sub>6</sub> (<b>I</b>), tricarbon-yl[1,3-di-phen-yl-6-(3-vinyl-phen-yl)fulvene]chromium(0), [Cr(C<sub>26</sub>H<sub>20</sub>)(CO)<sub>3</sub>] (<b>II</b>), and tricarbon-yl[1,3-diphenyl-6-  ...[more]

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