Mononuclear pivalates of metals of the first transition series

The synthesis and structures of mononuclear Ni(II), Co(II), Mn(II), and Cu(II) pivalates isolated as complex salts NBu4[M(Piv)3] ((NBu4)+ is tetrabutylammonium cation, Piv– is pivalate anion) and polynuclear complexes [Ni6(L)2(HL)2(Piv)6(HPiv)8], (NBu4)2[Co4(Piv)8(AcO)2(H2O)4], NBu4[Co2(Piv)5(H2O)2], and (NBu4)2[Cu4(Piv)8(AcO)2(H2O)2] (L2–, HL–, and AcO– is lactic acid dianion, lactic acid monoanion, and acetate anion, respectively) are discussed. The formation of the compounds is detected during the development of the synthesis of NBu4[M(Piv)3].