Characterization and electrochemical studies of molybdenum(VI) dioxodialkylbipyridyl complexes. X-ray crystal structure of MoO2(o-MeC6H4CH2)2(bipy) |
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| Authors: | Helena Teruel Nilia Romero Irene Henriquez |
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| Institution: | (1) Departamento de Química, Universidad Simón Bolívar, Sartenejas, Apartado 89000, 1080A Caracas, Venezuela |
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| Abstract: | Summary New MoVI-dioxodialkyl complexes, MoO2R2(bipy), R = CH2CH2Ph and p-MeC6H4CH2; bipy = 2,2 -bipyridine, have been synthesized. The i.r. and the 1H-n.m.r. spectra of these complexes are noted. The structure of MoO2(o-MeC6H4CH2)2(bipy) was determined by X-ray analysis. Significant differences in the redox characteristics of these dioxodialkylcompounds are reflected in the contrasting patterns: whereas reduction of MoO2-(CH2CH2Ph) 2(bipy) is a reversible one-electron process, under similar conditions MoO2(p-MeC6H4CH2)2(bipy) and MoO2(o-MeC6H4CH2)2(bipy) are reduced irreversibly. Similarly, solutions of MoO2(CH2CH2Ph)2(bipy) remain unchanged but oxygenated organic products are formed from MoO2(p-MeC6H4CH2)2(bipy) and MoO2 (o-MeC6H4CH2)2(bipy). |
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