Di-aqua-bis-[5-(2-pyrazin-2-yl)tetra-zolato]copper(II)-pyrazine-2-carbo-nitrile (1/2).
The title compound, [Cu(C5H3N6)2(H2O)2]·2C5H3N3, is a 1:2 co-crystal between the mononuclear complex di-aqua-bis-[5-(pyrazin-2-yl)tetra-zolato]copper(II) and the reagent pyrazine-2-carbo-nitrile which was used in the synthesis. The Cu(II) atom is located on an inversion centre and has a distorted octa-hedral [4 + 2]-coordination environment formed by four N atoms of two chelating bidentate 5-(pyrazin-2-yl)tetra-zolate ligands at shorter distances and two water O atoms at longer distances. The Cu(II) complex molecules are held together by O-H⋯N hydrogen bonds and π-π stacking inter-actions [centroid-centroid distance 3.6139 (8) Å], forming layers parallel to (100). These layers alternate with layers of pyrazine-2-car-bo-nitrile mol-ecules and both are held together via C-H⋯N hydrogen bonds and further π-π stacking inter-actions.
Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, Université Constantine 1, Algeria.
Mohamed Abdellatif
MA
Bensegueni
Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, Université Constantine 1, Algeria.
Aouatef
A
Cherouana
CRM2, UMR-CNRS 7036, Jean Barriol Institut, Lorraine University, BP 230, 54506 Vandoeuvre-lés-Nancy Cedex, France.
Slimane
S
Dahaoui
Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, Université Constantine 1, Algeria.
Issam
I
Boudraa