Bis(guanidinium) tris(pyridine-2,6-dicarboxylato-κ³O²,N,O⁶)zirconate(II) tetrahydrate

Abstract

In the title complex, (CH6N3)2[Zr(C7H3NO4)3]·4H2O, the ZrIV ion lies on a twofold rotation axes and is coordinated by six O and three N atoms of three tridentate pyridine-2,6-dicarboxyl­ate ligands, forming a slightly distorted tricapped trigonal–prismatic geometry. In the crystal, O—H⋯O and N—H⋯O hydrogen bonds link the components into a three-dimensional network.

2-Amino-1-methyl-4-oxo-4,5-dihydro-1H-imidazol-3-ium chloride

“…(2012). E68, o2183-o2184 doi:10.1107/S1600536812027080 In continuation of our research to synthesize transition metal complexes with dicarboxylic acids (especially pyridine-2,6dicarboxilic acid) in the presence of some amino compounds (Tabatabaee, Abbasi et al, 2011;Tabatabaee, Tahriri et al, 2011;Tabatabaee, Tahriri et al, 2012;Tabatabaee, Adineh et al, 2012), the reaction of zirconium tetrachloride, with pyridine-2,6-dicarboxilic acid in the presence of creatinine was performed. The title compound (I) was fortuitously obtained as a result of this reaction.…”

“…For creatinine (2-amino-1-methyl-5H-imidazol-4-one), which is used in the synthesis of some 1:1 proton-transfer compounds, see; Moghimi et al (2004); Soleimannejad et al (2005). For related structures, see: Tabatabaee et al (2007); Bujak & Zaleski (2002); Tabatabaee, Abbasi et al (2011); Tabatabaee, Tahriri et al (2011; Tabatabaee, Adineh et al (2012). For background information on weak C-HÁ Á ÁCl hydrogen bonds, see: Freytag & Jones (2000); Taylor & Kennard (1982).…”

Systematic Study on Zirconium Chelidamates: From a Molecular Complex to a M-HOF and a MOF

“…In the crystal structure, a complex 3D network of H-bonds is found (Table S8). Several metal complexes with the ligand 2,6-pyridinedicarboxylat have been reported, which exhibit the same coordination environments as observed in 1 . − …”