The unit cell obtained through X-ray single crystal analysis of the sy
nthetized CuCa2(HCOO)(6) crystals corresponds to a supercell of the ba
sic structure described by M. Sanchis et al, (Inorg. Chem. 31, 2915 (1
992)), Thermal decomposition of this sample shows two stages up to 300
degrees C; the first can be related to the superstructure, and the se
cond corresponds to the breaking down of the remaining copper formate
structural units and the simultaneous decomposition of the sample. (C)
1997 Academic Press.