Two cobalt(II) complexes with 5-(1H-benzotriazol-1-ylmethyl)isophthalate: synthesis, structural characterization and magnetism

Kuai, Hai‐Wei; Cheng, Xiao‐Chun; Zhu, Xia

doi:10.1080/00958972.2013.792335

Cited by 6 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Flexible and rigid bis(benzimidazole) derivatives, as one class of important multidentate N donor ligands, have been widely employed in transition metal complex systems and their coordination behaviors have been investigated by Liu, Ma, Hou, Bu, and our group [18][19][20][21][22]. However, reports on transition metal coordination polymers derived from semi-rigid bis (benzimidazole) derivatives are relatively limited [23][24][25]. As a continuing effort we selected a semi-rigid bis(benzimidazole) derivative 1,4-bis(5,6-dimethylbenzimidazole-1-yl)benzene (L) as the main ligand and 5-nitroisophthalic acid (H 2 npa) as the secondary ligand to react with a Co(II) salt in different solvent systems in order to investigate the effect of different solvents on the construction and structures of the target complexes.…”

Section: Introductionmentioning

confidence: 99%

Effect of solvent on the construction of Co(II) coordination polymers containing a semi-rigid bis(benzimidazole) derivative: syntheses, structures, and properties

Wang

Gong

Chen

et al. 2014

Journal of Coordination Chemistry

View full text Add to dashboard Cite

Two Co(II) coordination polymers, [CoL(npa)]·2H 2 O (1) and [CoL(Hnpa) 2 ] (2) (L = 1,4-bis(5,6-dimethylbenzimidazole-1-yl)benzene, H 2 npa = 5-nitroisophthalic acid), have been synthesized in different solvent systems and characterized by Infrared (IR) spectroscopy, elemental analysis, and powder and single crystal X-ray diffraction. Compound 1 was synthesized under solvothermal conditions with DMF as solvent and had a pair of L ligands adopting a μ 2 -bridging mode and connecting two Co 2+ cations to generate a 26-membered Co 2 L 2 loop. The npa 2− link adjacent Co 2 L 2 loops via a bis(monodentate) bridging mode to create a 1-D channel-like chain structure. Compound 2 was obtained under hydrothermal conditions, and the carboxylate of the monodeprotonated Hnpa − adopt a μ 1 -η 0 : η 1 coordination to connect adjacent Co 2+ cations into a 2-D polymeric layer. The μ 2 -bridging L ligands connect adjacent 2-D [Co(Hnpa)] n polymeric layers into a 3-D NaCl-like framework. The Co 2+ cations and the L ligands in compounds 1 and 2 exhibit different coordination geometries and conformations. Effects of solvents on the construction of Co(II) coordination polymers were investigated. In addition, the electrochemical behavior of carbon paste electrodes containing 1 and 2 and the thermal stabilities of 1 and 2 were investigated.

show abstract