Adducts of 4-t-Butylphenoxo Complexes of Oxovanadium(v) with 2-, 3- and 4-Cyanopyridines

Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla-171 005

Manuscript received 27 May 1996, revised 14 March 1997, accepted 16 May 1997

4-t-Butylphenoxo-complexes of oxovanadium(v) of composition VOCl_3-x(OC₆H₄Bu^t-4)_x, where x = 1 → 3, react with 2-, 3- and 4- cyanopyridines to give adducts of varying composition. 2-Cyanopyridine forms adduct of 1 : 1 composition, coordinating simultaneously through pyridine as well as nitrile nitrogens of the ligand, while 3- and 4-cyanopyridines forms adducts of 1 : 2 composition (metal : ligand) coordinating through only pyridine nitrogen of the ligand.