Copper(II), cobalt(II), nickel(II) and zinc(II) complexes containing the enolate of N-acetyl-3-butanoyltetramic acid (Habta) and its phenylhydrazone derivative analogues. Crystal structure of [Cu(abta)2(py)2]·2H2O
†
Abstract
Reaction of N-acetyl-3-butanoyltetramic acid (∶
1 ratio gave M(CH3CO2)(abta)·yH2O 1, 3, 5 and in 1
∶
2 ratio M(abta)2·y′H2O 2, 4, 6. A new
∶
1 and 1
∶
2 ratio to give the analogous complexes M(CH3CO2)(Phabta)·zH2O 9, 11 and M(Phabta)2·z′H2O 10 respectively. The solid state structure of [Cu(abta)2(py)2]· 2H2O 2a has been determined by
∶
1 ratio gives a complex 7 with a deacetylated
∶
2 ratio, Zn(abta)2·2H2O 8 is obtained. In contrast the reaction of HPhabta with Zn(CH3CO2)2·2H2O, irrespective of the metal to