Abstract
In the title compound, [Co(C5H4N3O2)2(H2O)2], the CoII atom is situated on a twofold rotation axis and is N,O-chelated by two 3-aminopyrazine-2-carboxylate anions and additionally bonded to the O atoms of two water molecules, leading to a slightly distorted octahedral coordination environment. The crystal packing is dominated by intermolecular O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonding involving the water molecules and amino groups as donors and carboxylate O atoms, as well as the non-coordinating heterocyclic N atoms as acceptors, resulting in a three-dimensional network. An intramolecular N—H⋯O hydrogen bond is also observed.
Highlights
In the title compound, [Co(C5H4N3O2)2(H2O)2], the CoII atom is situated on a twofold rotation axis and is N,O-chelated by two 3-aminopyrazine-2-carboxylate anions and bonded to the O atoms of two water molecules, leading to a slightly distorted octahedral coordination environment
The crystal packing is dominated by intermolecular O—H O, O—H N and N—H O hydrogen bonding involving the water molecules and amino groups as donors and carboxylate
We are grateful to the personal of the LCATM laboratory, Université Oum El Bouaghi, Algeria, for their assistance
Summary
Berrah,a,b Ratiba Belhouasc and Hocine Merazigc a Laboratoire de Chimie Appliquée et Technologie des Matériaux LCATM, Université. Oum El Bouaghi, Algeria, bDépartement Sciences de la Matière, Faculté des Sciences. Exactes et Sciences de la Nature et de la Vie, Université Oum El Bouaghi, Algeria, and cUnité de Recherche de Chimie de l’Environnement et Moléculaire Structurale, CHEMS, Faculté des Sciences Exactes, Université Mentouri Constantine 25000, Algeria. In the title compound, [Co(C5H4N3O2)2(H2O)2], the CoII atom is situated on a twofold rotation axis and is N,O-chelated by two 3-aminopyrazine-2-carboxylate anions and bonded to the O atoms of two water molecules, leading to a slightly distorted octahedral coordination environment. The crystal packing is dominated by intermolecular O—H O, O—H N and N—H O hydrogen bonding involving the water molecules and amino groups as donors and carboxylate. An intramolecular N—H O hydrogen bond is observed
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