STRUCTURE OF 1,3,7-TRIMETHYL-2,6-DIOXOPURINE COPPER(II) O-IODOBENZOATE

The crystal structure of Cu-2(o-IC6H4COO)(4)(caffeine)(2) contains Cu( II) atoms bridged by o-iodobenzoate groups forming binuclear molecules [Cu-2(iodobenzoate)(4)(caffeine)(2)]. Copper atoms are surrounded by four oxygen atoms from the o-iodobenzoate groups and one nitrogen atom from caffeine in the apices of slightly distorted square pyramids. Me an Cu-O and Cu-N bond lengths are 0.197(1) nm and 0.224(1) nm. The dis placements of copper atoms from the basal planes are 0.0246(6) nm and 0.0245(7) nm. The Cu ... Cu distances are 0.2713(2) nm.