Title of article :
Crystal structure of meso-di-μ-chlorido-bis[bis(2,2′-bipyridine)cadmium] bis(1,1,3,3-tetracyano-2-ethoxypropenide) 0.81-hydrate
Author/Authors :
Setifi, Fatima Laboratoire de Chimie - Ingénierie Moléculaire et Nanostructures (LCIMN) - Université Ferhat Abbas Sétif 1,Algeria , Morgenstern, Bernd Fachrichtung Chemie - Universität des Saarlandes,Germany , Setifi, Zouaoui Laboratoire de Chimie - Ingénierie Moléculaire et Nanostructures (LCIMN) - Université Ferhat Abbas Sétif 1,Algeria , Touzanic, Rachid Laboratoire de Chimie Appliquée et Environnement - LCAE-URAC18, COSTE - Faculté des Sciences - Université Mohamed Premier, Morocco , Glidewell, Christopher School of Chemistry - University of St Andrews, UK
Abstract :
The hydrated title salt, [Cd2Cl2(C10H8N2)4](C9H5N4O)2·0.81H2O, was obtained from the hydrothermal reaction between 2,2′-bipyridine, cadmium(II) chloride and potassium 1,1,3,3-tetracyano-2-ethoxypropenide. The binuclear cation lies across a centre of inversion in the space group P21/c, with the other components in general positions. The cation has approximate, but non-crystallographic 2/m symmetry and each of the CdII atoms is a stereogenic centre, one having the Δ configuration and the other the Λ configuration. In the anion, one of the C(CN)2 units is disordered over two sets of atomic sites having occupancies 0.75 (2) and 0.25 (2). The cations are linked by two independent C—H⋯Cl hydrogen bonds to form a sheet of R22(14) and R42(24) rings.
Keywords :
hydrothermal synthesis , polynitrile anions , hydrogen bonding , molecular disorder , molecular structure
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
