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Construction of a Novel 2D Polymer [Co(dmpzm)(dca) 2 ] ∞ from Reaction of a Mononuclear Complex [Co(dmpzm)Cl 2 ] with Sodium Dicyanamide (dca) [dmpzm=bis(3,5‐dimethylpyrazolyl)methane]
Author(s) -
Li QiaoYun,
Zhang WenHua,
Li HongXi,
Tang XiaoYan,
Lang JianPing,
Zhang Yong,
Wang XinYi,
Gao Song
Publication year - 2006
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200690321
Subject(s) - dicyanamide , chemistry , thermogravimetric analysis , adduct , crystallography , methane , sodium , inorganic chemistry , medicinal chemistry , organic chemistry , catalysis , ionic liquid
Reaction of CoCl 2 ·6H 2 O with equimolar bis(3,5‐dimethylpyrazolyl)methane (dmpzm) produced a mononuclear adduct [Co(dmpzm)Cl 2 ] ( 1 ). Treatment of 1 with sodium dicyanamide (dca) afforded a polymeric complex [Co(dmpzm)( μ ‐dca) 2 ] ∞ ( 2 ). 1 and 2 were characterized by elemental analysis, IR spectra, thermogravimetric analysis and single‐crystal X‐ray diffraction. The cobalt atom in 1 adopts a distorted tetrahedral coordination geometry, bound to two N atoms of one dmpzm and two Cl atoms. Complex 2 has a 2D brick‐wall network (extended along the bc plane) in which the {[Co(dmpzm)( μ ‐dca)] 2 } 2 n + n chains are interconnected by pairs of μ ‐dca anions along the c axis. The magnetic properties of 1 and 2 were also investigated.

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