Cobaloximes with Mixed Dioximes of Glyoxime and Diphenylglyoxime:  Synthesis, Characterization, CV, X-ray Studies, and Crystal Packing

Fourteen complexes of inorganic and alkyl cobaloximes with mixed dioximes of the type (R/X)Co(gH)(dpgH)Py have been synthesized and characterized by 1H and 13C NMR and UV. The spectral data are interrelated, and a good correlation is found between Δδ1H(Pyα) with δ1H(gH), δ13C(CNgH), and δ13C(CNdpg...

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Bibliographic Details
Published in:Organometallics 2006-01, Vol.25 (3), p.706-714
Main Authors: Gupta, B. D, Yamuna, R, Mandal, Debaprasad
Format: Article
Language:English
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Summary:Fourteen complexes of inorganic and alkyl cobaloximes with mixed dioximes of the type (R/X)Co(gH)(dpgH)Py have been synthesized and characterized by 1H and 13C NMR and UV. The spectral data are interrelated, and a good correlation is found between Δδ1H(Pyα) with δ1H(gH), δ13C(CNgH), and δ13C(CNdpgH) indicating the ring current throughout the Co(dioxime)2 + metallabicycle. All the spectroscopic data and CV show dependence on the field effect. The X-ray structure and crystal packing in ClCo(gH)(dpgH)Py, C2H5Co(gH)(dpgH)Py, and C8H17Co(gH)(dpgH)Py have been studied. ClCo(gH)(dpgH)Py shows a right-handed helix.
ISSN:0276-7333
1520-6041
DOI:10.1021/om050919x