1.
Acta Crystallogr E Crystallogr Commun
; 73(Pt 9): 1302-1304, 2017 Sep 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-28932460
RESUMO
The title complex, [Co(C7H7N4O2)2(H2O)4], comprises mononuclear mol-ecules consisting of a CoII ion, two deprotonated theophylline ligands (systematic name: 1,3-dimethyl-7H-purine-2,6-dione) and four coordinating water mol-ecules. The CoII atom lies on an inversion centre and has a slightly distorted octa-hedral coordination environment, with two N atoms of two trans-oriented theophylline ligands and the O atoms of four water mol-ecules. An intra-molecular hydrogen bond stabilizes this conformation. A three-dimensional supra-molecular network structure is formed by inter-molecular O-Hâ¯O and O-Hâ¯N hydrogen bonds.