Research Article: Bis(2,2′-bipyridyl-κ2N,N′)dichlorido­rhodium(III) perchlorate

Date Published: June 01, 2012

Publisher: International Union of Crystallography

Author(s): Alla Dikhtiarenko, Laura Torre-Fernández, Santiago García-Granda, José R. García, José Gimeno.


The asymmetric unit of the title compound, [RhCl2(C10H8N2)2]ClO4, consists of one unit of the cationic complex [RhCl2(bipy)2]+ and one uncoordinated perchlorate anion. The RhIII atom is coordinated by four N atoms from two bipyridyl ligands and two Cl atoms, forming a distorted octa­hedral environment. The Cl ligands are cis. Two intramolecular C—H⋯Cl hydrogen bonds occur in the cationic complex . In the crystal, mol­ecules are linked together by a hydrogen-bond network involving the H atoms of bipyridyl rings and perchlorate anions. An O atom of the perchlorate anion is disordered over two sites, with an occupancy-factor ratio of 0.78 (3):0.22 (3).

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For potential applications of noble metal complexes of pyridyl ligands in biochemistry, catalysis and anti­cancer activity, see: Chifotides et al. (2004 ▶); Mbaye et al. (2003 ▶); Karidi et al. (2005 ▶); Tan et al. (2005 ▶). For their photochemical and photophysical properties, see: Forster & Rund (2003 ▶); Arachchige et al. (2008 ▶) and for their electrochemical properties, see: Rasmussen et al. (1990 ▶). For related structures, see: Al-Noaimi & Haddad (2007 ▶); Andansen & Josephsen (1971 ▶); Choudhury et al. (2006 ▶); De Munno et al. (1993 ▶); Figgis et al. (1985 ▶); Fontaine (2001 ▶); Gao & Ng (2010 ▶); Kramer & Straehle (1986 ▶); Sofetis et al. (2006 ▶); Strenger et al. (2000 ▶). For similar structures with platinum group metals, see: Lahuerta et al. (1991 ▶); Kim et al. (2009 ▶); Helberg et al. (1996 ▶); Prajapati et al. (2008 ▶); Eggleston et al. (1985 ▶).