μ-2,3,5,6-Tetra-2-pyridylpyrazine-κ3N1,N2,N6:κ3N3,N4,N5-bis[(methanol-κO)(nitrato-κ2O,O′)(nitrato-κO)cadmium(II)]

• Main Authors: Mirabdullah Seyed Sadjadi, Amin Ebadi, Karim Zare, Hamid Reza Khavasi, Vahid Amani
• Format: Article
• Language: English
• Published: International Union of Crystallography 2008-08-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536808022320
• ISSN: 1600-5368

The title complex, [Cd2(NO3)4(C24H16N6)(CH4O)2], displays a centrosymmetric dinuclear structure, in which the 2,3,5,6-tetra-2-pyridinylpyrazine (tppz) ligand links two Cd ions separated by 7.323 (4) Å. Each CdII center is seven-coordinated by three N-atom donors of tppz in one plane, by two O atoms nearly normal to this plane, and by two O atoms 0.393 (3) and 0.488 (3) Å from that plane. The two CdII ions are above and below the plane of the pyrazine ring of the tppz ligand, oriented with respect to the pyridine rings at dihedral angles of 38.01 (3) and 31.90 (3)°. The dihedral angle between the two pyridine rings is 41.11 (3)°. In the crystal structure, intermolecular O—H...O hydrogen bonds link the molecules.