Tris(tert-butyl isocyanide)bis[tris(4-methoxyphenyl)phosphine]cobalt(I) perchlorate dichloromethane disolvate and tris(tert-butyl isocyanide)bis[tris(4-methoxyphenyl)phosphine]cobalt(II) bis(perchlorate) dichloromethane disolvate: modification of a trigonal–bipyramidal structure with change of metal oxidation state

The title complexes, [Co(C(5)H(9)N)(3)(C(21)H(21)O(3)P)(2)]ClO(4).2CH(2)Cl(2), (I), and [Co(C(5)H(9)N)(3)(C(21)H(21)O(3)P)(2)](ClO(4))(2).2CH(2)Cl(2), (II), ...