Redox, complexation, and substitution reactions in [Cu2B10H10]-2,2′-bipyridylamine-CH3CN system

Reaction of [Cu2B10H10] with 2,2'-bipyridylamine (bpa) in acetonitrile was studied. A redox reaction was found to proceed in reaction solution at ambient temperature. Copper coordination compounds with the metal of different oxidation states-[Cu (2) (I) (bpa)(2)B10H10] center dot 2NCCH(3), [Cu (4) (II) (bpa)(4)(OH)(4)][Cu (2) (I) (B10H10)(3)] center dot nNCCH(3), [Cu-II(bpa)(2)(NCCH3)(2)](2-B(10)H(9)bpa)(2) center dot 2H(2)O, [Cu (2) (II) (bpa)(2)(OH)(2)B10H10], and [(Cu (2) (II) (bpa)(2)(CO3)(2)] center dot H2O-were isolated under various reaction conditions. The compounds were characterized by IR spectroscopy, X-ray crystallography, and elemental analysis.