Издательство СО РАН

Издательство СО РАН

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Поиск по журналу

Журнал структурной химии

2010 год, номер 6

crystal structure and thermal properties of novel Co(II) complexes with 2,6-pyridinedicarboxylate containing infinite one-dimensional chain: [CoL1(H2O)4][Co(pydc)2]·2H2O and [Co(H2O)6][Co(pydc)2]L2·H2O (L1 = 1,3-bis(4-pyridyl)propane, L2 = 3-amino-1H-1,2,4-triazole, pydc = 2,6-pyridinedicarboxylic acid)

M.-S. Zhang1, B.-W. Sun2, R.-B. Fang3, Q.-H. Zhao4
1 School of Chemical Science and Engineer, Key Laboratory of Natural Resources and Medicinal Chemistry, Yunnan University, Kunming, 650091, P. R. China
2 Department of Chemistry and Chemical Engineering Southeast University, Nanjing 210096 P. R. China, chmsunbw@seu.edu.cn
3 School of Chemical Science and Engineer, Key Laboratory of Natural Resources and Medicinal Chemistry, Yunnan University, Kunming, 650091, P. R. China
4 School of Chemical Science and Engineer, Key Laboratory of Natural Resources and Medicinal Chemistry, Yunnan University, Kunming, 650091, P. R. China, qhzhao@ynu.edu.cn
Ключевые слова: Co(II) complexes; one-dimentional complexes; crystal structure; hydrogen bonding; 2, 6-pyridinedicarboxylic acid
Страницы: 1180-1186

Аннотация

The two title compounds were prepared from the ligand pydc with cobalt(II) acetate in the presence of L1 and L2 (L1 = 1,3-bis(4-pyridyl)propane, L2 = 3-amino-1H-1,2,4-triazole, pydc = 2,6-pyridinedicarboxylic acid). The complexes were characterized by elemental analysis, IR spectrum and single crystal X-ray diffraction. Single crystal analysis shows that in two complexes coordination number around Co atom is six with distorted octahedral geometry, and both two complexes consist of ion pairs containing cationic [Co(H2O)n]2+ and anionic [Co(pydc)2]2- units.