The X-ray structure of the [Cu(5′-GMP)2(en)(H2O)2]2– complex ion (5′-GMP = guanosine 5′-monophosphate; en = ethylenediamine). Its close resemblance with platinum co-ordination in cis-diamineplatinum(II)–nucleotide complexes

Abstract

The crystal structure of Ca[Cu(5′-GMP)₂(en)(H₂O)₂]·8H₂O (5′-GMP = guanosine 5′-monophosphate; en = ethylene-diamine) shows the copper atom to be coplanar with the two nitrogen atoms of ethylenediamine and the N(7) atoms of two 5′-GMP moieties in the cis configuration.