Issue 5, 2001

Interaction of Co(acac)2 and Ta(OMe)5: isolation and single crystal study of the products. MII2MV2(acac)2(OMe)12, MII = Co, Ni, Zn or Mg and MV = Ta or Nb: A new class of heterometallic heteroleptic alkoxide complexes

Abstract

The interaction of Co(acac)2 and Ta(OMe)5 in dry toluene led to formation of crystalline [Co2Ta2(acac)2(OMe)12] 1 and [Ta(acac)(OMe)4] 2 complexes. If the starting material is not completely water-free the products obtained are [Co4(acac)6(OMe)2(MeOH)2] 3 and Co(acac)2·2MeOH 4 due to hydrolysis of Ta(OMe)5 producing free methanol and thus altering the reaction pathway. The interaction of MII(acac)2, MII = Co, Ni, Zn or Mg, and MV(OMe)5, MV = Ta or Nb, in dry toluene was found generally to provide MII2MV2(acac)2(OMe)125–8, a new class of heterometallic heteroleptic alkoxide complexes. The crystal structures of 1–8 have been determined.

Graphical abstract: Interaction of Co(acac)2 and Ta(OMe)5: isolation and single crystal study of the products. MII2MV2(acac)2(OMe)12, MII = Co, Ni, Zn or Mg and MV = Ta or Nb: A new class of heterometallic heteroleptic alkoxide complexes

Supplementary files

Article information

Article type
Paper
Submitted
23 Oct 2000
Accepted
10 Jan 2001
First published
09 Feb 2001

J. Chem. Soc., Dalton Trans., 2001, 574-579

Interaction of Co(acac)2 and Ta(OMe)5: isolation and single crystal study of the products. MII2MV2(acac)2(OMe)12, MII = Co, Ni, Zn or Mg and MV = Ta or Nb: A new class of heterometallic heteroleptic alkoxide complexes

P. Werndrup and V. G. Kessler, J. Chem. Soc., Dalton Trans., 2001, 574 DOI: 10.1039/B008526J

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