Bis(1,10-phenanthroline-κ²N,N′)-bis(cyanido-κC)cobalt(III) bis(azido-κ¹N)[1,2-bis(pyridine-2-carboxamido)benzene-κ⁴N]chromate(III) monohydrate

Abstract

Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.005 Å; R factor = 0.055; wR factor = 0.162; data-to-parameter ratio = 13.2. [bpb 2À = 1,2-bis(pyridine-2-carboxamido)benzene] anion and an uncoordinated water molecule. The Co and Cr ions are sixcoordinated by N 4 C 2 and N 6 sets, respectively, yielding distorted octahedral coordination geometries. The [Co III -(phen) 2 (CN) 2 ] + and [Cr III (bpb)(N 3 ) 2 ] À ions and water molecules are connected byinteractions [shortest distance 3.376 (2) Å ] and O-HÁ Á ÁO, O-HÁ Á ÁN, C-HÁ Á ÁO and C-HÁ Á ÁN hydrogen bonds into a three-dimensional supramolecular network structure.

Bis[N-(8-quinolyl)pyridine-2-carboxamidato-κ3N,N′,N′′]manganese(III) perchlorate monohydrate

“…However, unsymetrical pyridinecarboxamide ligands are limited (Zhang et al, 2001). Here we report a new well with those reported for other complexes containing pyridinecarboxamide ligands (Dutta et al, 2000;Ni, 2007) and…”

Diaqua[N,N′-(o-phenylene)bis(pyridine-2-carboxamidato)-κ 4 N]manganese(III) perchlorate

“…For iron and chromium monomeric complexes with the inplane 1,2-bis(pyridine-2-carboxamido)benzene (bpb 2À ) ligand, see: Ni et al (2006); Ni (2007); Che et al (1988); Dutta et al (2000). For manganese monomeric compounds with the bpb 2À ligand and its derivatives, see: Liang et al (2007); Lin et al (2003); Havranek et al (1999).…”

“…Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: XP (Sheldrick, 1998); software used to prepare material for publication: SHELXL97 and XP. To date, many iron and chromium coordination complexes containing a large in-plane pyridine carboxamide ligand (Dutta et al, 2000) and [Co III (C 12 (Ni, 2007), have been synthesized and structural characterized. However, the manganese(III) complexes with the bpb 2ligand and its derivatives are relative scarce (Lin et al, 2003;Liang et al, 2007;Havranek et al, 1999).…”