Title of article :
Channels with ordered water and bipyridine molecules in the porous coordination polymer {[Cu(SiF6)(C10H8N2)2]·2C10N2H8·5H2O}n
Author/Authors :
Aubert, Emmanuel Cristallographie, Résonance Magnétique et Modélisations (CRM2) - UMR CNRS, 7036 - Université de Lorraine, France , Doudouh, Abdelatif Cristallographie, Résonance Magnétique et Modélisations (CRM2) - UMR CNRS, 7036 - Université de Lorraine, France , Peluso, Paola Istituto di Chimica Biomolecolare ICB CNR - Sede Secondaria di Sassari - Traversa La Crucca 3 - Regione Baldinca, Italy , Mamane, Victor Institut de Chimie de Strasbourg, France
Abstract :
The coordination polymer {[Cu(SiF6)(C10H8N2)2]·2C10H8N2·5H2O}n, systematic name: poly[bis(μ2-4,4′-bipyridine)(μ2-hexafluoridosilicato)copper(II)] 4,4′-bipyridine disolvate pentahydrate], contains pores which are filled with water and 4,4′-bipyridine molecules. As a result of the presence of these ordered species, the framework changes its symmetry from P4/mmm to P21/c. The 4,4′-bipyridine guest molecules form chains inside the 6.5 × 6.9 Å pores parallel to [100] in which the molecules interact through π–π stacking. Ordered water molecules form infinite hydrogen-bonded chains inside a second pore system (1.6 × 5.3 Å free aperture) perpendicular to the 4,4′-bipyridine channels.
Keywords :
Porous coordination polymer , π–π stacking , adsorption , hydrogen bonding , copper(II) , crystal structure , 4,4′-bipyridine
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
