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Grid‐like Cobalt(II) Layered Complex with an Unprecedented Double 1,2‐Bis(1,2,4‐triazole‐1‐yl)methane Bridges
Author(s) -
Chen XiaoYan,
Cheng Peng,
Yan ShiPing,
Liao DaiZheng,
Jiang ZongHui
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500303
Subject(s) - monoclinic crystal system , cobalt , dicyanamide , octahedron , crystallography , 1,2,4 triazole , triazole , chemistry , crystal structure , methane , molecule , stereochemistry , materials science , inorganic chemistry , medicinal chemistry , organic chemistry , catalysis , ionic liquid
A novel two‐dimensional cobalt complex, [Co(btrm) 2 (dca)]ClO 4 ( 1 , btrm = 1,2‐bis(1,2,4‐triazole‐1‐yl)methane, dca = dicyanamide), was synthesized and characterized. X‐ray diffraction analyses reveal that the title complex crystallizes in the monoclinic space group C 2/ m with a = 29.507(13)Å, b = 17.804(8) Å, c = 14.709(7) Å, β = 119.916(7)°, Z = 12, and R 1 = 0.0784, wR 2 = 0.2041. The cobalt atom involves a six‐coordinated CoN 6 environment, with a distorted octahedral coordination. Two btrm ligands connect the Co II atoms with the exodentate nitrogen atoms on the 4‐position of triazole rings to form a sixteen‐membered rhombic grid. The unprecedented double btrm bridges and μ 1,5 ‐dca bridge connect the cobalt atoms to form a two‐dimensional grid‐like layered structure. The spectroscopic and magnetic properties have also been investigated.