The three-dimensional intermolecular network formed via water molecules in trans-bis(nitrito-κN)tetrakis(pyridine-κN)ruthenium(II) dihydrate

• Published in: Acta crystallographica. Section C, Crystal structure communications Vol. 67; no. 12; pp. m375 - m377
• Main Authors: Buron-Le Cointe, Marylise, Cormary, Benoît, Toupet, Loïc, Malfant, Isabelle
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England International Union of Crystallography 01.12.2011; Wiley Subscription Services, Inc
• Subjects: Chemical bonds; Chemical compounds; Condensed Matter; Crystal structure; Crystallography; Diffraction; Hydrogen bonds; Joining; Materials Science; Molecules; Networks; Nitrites; Physics; Pyridines; Three dimensional; Water
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S0108270111044672

The molecular geometry of the tetragonal crystal structure of the title compound, [Ru(NO2)2(C5H5N)4]·2H2O, differs from that previously determined by powder diffraction [Schaniel et al. (2010). Phys. Chem. Chem. Phys.12, 6171–6178]. In the [Ru(NO2)(C5H5N)4] molecule, the Ru atom lies at the intersection of three twofold axes (Wyckoff position 8b). It is coordinated by four N atoms of the pyridine rings, as well as by two N atoms of N‐nitrite groups. The last two N atoms are located on a twofold axis (Wyckoff position 16f). The O atoms of the water molecules are situated on a twofold axis (Wyckoff position 16e). Short intermolecular contacts are observed in the crystal structure, viz. N—O...OW and N—O...H—OW contacts between nitrite and water, and weak C—H...OW hydrogen bonds between pyridine and water. Thus, the intercalated water molecules act as bridges connecting the trans‐[Ru(NO2)2(py)4] molecules into a three‐dimensional network.