Two cobalt(II) metal–organic frameworks based on mixed 1,2,4,5-benzenetetracarboxylic acid and bis(benzimidazole) ligands

Hydrothermal Synthesis, Crystal Structure, and Optical Properties of four Supramolecular Coordination Compounds Constructed from 1,10-Phenanthroline and Polycarboxylic Acids, "Координационная химия"

“…n n reported coordination compounds [19,28]. The two nitrogen atom (N(4) and N(6)) from chelating Phen ligand occupy the axial positions, and the remaining four nitrogen atoms (N(1), N(2), N(3) and N(5)) from other Phen occupy the four sites of equatorial plane of the octahedron, as shown in Fig.…”

“…3,4-Dicarboxyl-(3',4'-dicarboxylazophenyl)benzene (H 4 Dczpb) [15], 1,4-naphthalenedicarboxylic acid (H 2 Nda) [16,17], pyromellitic acid (H 4 Pma) [18,19] (Scheme 1) had been employed as exo-multidentate ligands for the design and construction of novel coordination polymers owing to their thermal stability and symmetry. In this paper, four supramolecular coordination compounds, namely [Cd(Phen) 2 6 ] · 2H 3 Pma · (H 2 Pma) · 2H 2 O (IV), constructed by Phen, and H 4 Dczpb, H 2 Nda, H 4 Pma with different transition metal ions (Cd 2+ , Mn 2+ , and Co 2+ ) were presented.…”

Mn (II) and Zn (II) complexes of a benzimidazole ligand having undecyl chains: Crystal structures, photophysical and thermal properties

“…Reaction of benzimidazoles with alky or aryl halide in the presence of a strong base gives N‐substituted benzimidazole derivatives . In addition to biological activities and liquid crystalline properties, bis (benzimidazole) derivatives have attracted great attention because they have a remarkable coordination ability . Bis (benzimidazole) derivatives containing two benzimidazole and one central pyridine units behave as a tridentate ligand and their complexes with transition metals have been synthesized and their properties were extensively studied .…”