Diaquabis[5-(2-pyrazin-2-yl)tetrazolato]copper(II)–pyrazine-2-carbonitrile (1/2)
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چکیده
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.
منابع مشابه
Diaquabis[5-(pyrazin-2-yl-κN 1)-3-(pyridin-3-yl)-1,2,4-triazolido-κN 1]zinc
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In the title complex, [Ir(C(16)H(9)F(2)N(2))(2)(C(5)H(7)O(2))], the Ir(III) atom, lying on a twofold rotation axis, is hexa-coordinated in a distorted octa-hedral geometry by two C,N-bidentate 5-fluoro-2-[3-(4-fluoro-phen-yl)pyrazin-2-yl]phenyl ligands and one O,O'-bidentate acetyl-acetonate ligand. The dihedral angles between the benzene rings and the pyrazine ring are 14.66 (8) and 49.76 (12)°.
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