Heteronuclear coordination compounds with metal-metal bonds .9. Amine copper(I) carbonyl metalates with cobalt, iron, or manganese

Colourless crystals of the carbonyl copper complex [(NH3)(3)(CO)Cu][Co(CO)(4)] (1a) are formed in the reaction of [Cu(NH3)(4)]Cl and Na[Co(CO)(4)] (T < -8 degrees C, p(co) = 1 bar); above -5 degrees C and under N-2-atmosphere 1a converts to [(NH3)(2)CuCo(CO)(4)] (C), which serves as a starting material for the synthesis of new copper cobaltates: the amines N-amino piperidine, N,N-dimethyl ethylenediamine (dmed) and N-benzyl N',N'-dimethyl ethylenediamine (bn-dmed) replace NH3 to form [(C5H10N-NH2)(3)CuCo(CO)(4)] (1b), [(dmed)CuCo(CO)(4)] (1c), [(bn-dmed)CuCo(CO)(4)] (Id) the Cu-Co-bond remaining intact. [(NH3)(2)CuFe(CO)(3)NO] (2a) is isosteric with C; it is synthesized from [Cu(NH3)(4)]Cl and Na[Fe(CO)(3)NO] in aqueous solution; 2a reacts with N,N,N',N'-tetramethyl ethylenediamine (tmed) to form [(tmed)(NH3)CuFe(CO)(3)NO] (2b). The [Mn(CO)(5)](-) ion reacts with ammine copper ions to form the tetranuclear cluster [{(NH3)CuMn(CO)(5)}(2)] (3). All new compounds have been investigated by X-ray structure analysis.