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Cobalt(II) and copper(II) complexes constructed from bis(benzimidazole) and 2,6-pyridinedicarboxylate co-ligands : synthesis, crystal structures, and catalytic properties

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Abstract
Three metal complexes based on the flexible bis(benzimidazole) derivatives, namely [Co-2(L1)(4)(pydc)(2)]2H(2)O (1), {[Cu(L1)(pydc)]0.75H(2)O}(n) (2), and [Co-2(L2)(2)(pydc)(2)]8H(2)O (3), [L1 = 1,2-bis(5,6-dimethylbenzimidazol-1-ylmethyl)benzene, H(2)pydc = 2,6-pyridinedicarboxylic acid, L2 = 1,4-bis(5-methylbenzimidazol-1-ylmethyl)benzene] were hydrothermally synthesized and characterized by IR spectra, elemental analysis, UV/Vis diffuse refraction spectroscopy, and X-ray single-crystal diffraction. Complexes 1 and 3 exhibit a dinuclear structure composed of two central cobalt atoms bridged by flexible bis(benzimidazole) ligands and 3 finally packed into a two-dimensional supramolecular network through stacking interaction. Complex 2 shows a one-dimensional zigzag chains motif, which further extended into a 2D supramolecular layer by face-to-face stacking interactions. The luminescence properties of complexes 1-3 in the solid state at room temperature were described. Moreover, complexes 1 and 2 show higher catalytic activity than complex 3 for degradation of congo red azo dye in a Fenton-like process.
Keywords
Catalytic property, Bis(benzimidazole), Cobalt, Copper, CADMIUM(II) COORDINATION POLYMERS, METAL-ORGANIC FRAMEWORKS, FLEXIBLE BIS(BENZIMIDAZOLE), DIPICOLINIC ACID, PYRIDINE-2, 6-DICARBOXYLATE, ARCHITECTURES, FLUORESCENCE, CHEMISTRY, SILVER(I), LENGTHS

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MLA
Yang, Rui, et al. “Cobalt(II) and Copper(II) Complexes Constructed from Bis(Benzimidazole) and 2,6-Pyridinedicarboxylate Co-Ligands : Synthesis, Crystal Structures, and Catalytic Properties.” ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, vol. 641, no. 3–4, 2015, pp. 642–49.
APA
Yang, R., Li, H. H., Van Hecke, K., & Cui, G. H. (2015). Cobalt(II) and copper(II) complexes constructed from bis(benzimidazole) and 2,6-pyridinedicarboxylate co-ligands : synthesis, crystal structures, and catalytic properties. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 641(3–4), 642–649.
Chicago author-date
Yang, Rui, Huan Huan Li, Kristof Van Hecke, and Guang Hua Cui. 2015. “Cobalt(II) and Copper(II) Complexes Constructed from Bis(Benzimidazole) and 2,6-Pyridinedicarboxylate Co-Ligands : Synthesis, Crystal Structures, and Catalytic Properties.” ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 641 (3–4): 642–49.
Chicago author-date (all authors)
Yang, Rui, Huan Huan Li, Kristof Van Hecke, and Guang Hua Cui. 2015. “Cobalt(II) and Copper(II) Complexes Constructed from Bis(Benzimidazole) and 2,6-Pyridinedicarboxylate Co-Ligands : Synthesis, Crystal Structures, and Catalytic Properties.” ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 641 (3–4): 642–649.
Vancouver
1.
Yang R, Li HH, Van Hecke K, Cui GH. Cobalt(II) and copper(II) complexes constructed from bis(benzimidazole) and 2,6-pyridinedicarboxylate co-ligands : synthesis, crystal structures, and catalytic properties. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE. 2015;641(3–4):642–9.
IEEE
[1]
R. Yang, H. H. Li, K. Van Hecke, and G. H. Cui, “Cobalt(II) and copper(II) complexes constructed from bis(benzimidazole) and 2,6-pyridinedicarboxylate co-ligands : synthesis, crystal structures, and catalytic properties,” ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, vol. 641, no. 3–4, pp. 642–649, 2015.
@article{5935271,
  abstract     = {Three metal complexes based on the flexible bis(benzimidazole) derivatives, namely [Co-2(L1)(4)(pydc)(2)]2H(2)O (1), {[Cu(L1)(pydc)]0.75H(2)O}(n) (2), and [Co-2(L2)(2)(pydc)(2)]8H(2)O (3), [L1 = 1,2-bis(5,6-dimethylbenzimidazol-1-ylmethyl)benzene, H(2)pydc = 2,6-pyridinedicarboxylic acid, L2 = 1,4-bis(5-methylbenzimidazol-1-ylmethyl)benzene] were hydrothermally synthesized and characterized by IR spectra, elemental analysis, UV/Vis diffuse refraction spectroscopy, and X-ray single-crystal diffraction. Complexes 1 and 3 exhibit a dinuclear structure composed of two central cobalt atoms bridged by flexible bis(benzimidazole) ligands and 3 finally packed into a two-dimensional supramolecular network through stacking interaction. Complex 2 shows a one-dimensional zigzag chains motif, which further extended into a 2D supramolecular layer by face-to-face stacking interactions. The luminescence properties of complexes 1-3 in the solid state at room temperature were described. Moreover, complexes 1 and 2 show higher catalytic activity than complex 3 for degradation of congo red azo dye in a Fenton-like process.},
  author       = {Yang, Rui and Li, Huan Huan and Van Hecke, Kristof and Cui, Guang Hua},
  issn         = {0044-2313},
  journal      = {ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE},
  keywords     = {Catalytic property,Bis(benzimidazole),Cobalt,Copper,CADMIUM(II) COORDINATION POLYMERS,METAL-ORGANIC FRAMEWORKS,FLEXIBLE BIS(BENZIMIDAZOLE),DIPICOLINIC ACID,PYRIDINE-2,6-DICARBOXYLATE,ARCHITECTURES,FLUORESCENCE,CHEMISTRY,SILVER(I),LENGTHS},
  language     = {eng},
  number       = {3-4},
  pages        = {642--649},
  title        = {Cobalt(II) and copper(II) complexes constructed from bis(benzimidazole) and 2,6-pyridinedicarboxylate co-ligands : synthesis, crystal structures, and catalytic properties},
  url          = {http://dx.doi.org/10.1002/zaac.201400464},
  volume       = {641},
  year         = {2015},
}

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