Racemic tricarbon­yl(η(6)-7-meth­oxy­flavan)chromium(0)

In the title compound [systematic name: tricarbonyl(η(6)-7-methoxy-2-phenyl-3,4-dihydro-2H-1-benzopyran)chromium(0)], [Cr(C(16)H(16)O(2))(CO)(3)], the Cr(CO)(3) unit is coordinated by the phenyl­ene ring of the flavan ligand, exhibiting a three-legged piano-stool conformation, with a point to plane...

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Detalles Bibliográficos
Autores principales: van Tonder, Johannes. H., Bezuidenhoudt, Barend C. B., Janse van Rensburg, J. Marthinus
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2010
Materias:
Metal-Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3007425/
https://www.ncbi.nlm.nih.gov/pubmed/21588147
http://dx.doi.org/10.1107/S1600536810024992
Descripción
Sumario:In the title compound [systematic name: tricarbonyl(η(6)-7-methoxy-2-phenyl-3,4-dihydro-2H-1-benzopyran)chromium(0)], [Cr(C(16)H(16)O(2))(CO)(3)], the Cr(CO)(3) unit is coordinated by the phenyl­ene ring of the flavan ligand, exhibiting a three-legged piano-stool conformation, with a point to plane distance of 1.750 (1) Å. The phenyl ring is twisted away from the fused ring system by 36.49 (5)° (r.m.s. deviation = 0.027 Å; fitted atoms are the C(6) ring and the attached fused-ring C and O atoms). The dihydro­pyran ring displays a distorted envelope configuration by displacement of the phenyl-bearing and the adjacent ring C atoms from the fused-ring system plane by 0.356 (2) and 0.402 (2) Å, respectively.

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