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Synthesis and crystal structure of polymer cobalt(II) complex, 1,2,4,5‐benzenetetracarboxylate hexaimidazole tetraaqua cobalt (II) tetrahydrate
Author(s) -
Shun Wang,
MaoLing Hu,
JlXin Yuan,
YaQian Cheng,
JuanJuan Lin,
ZhenYan Huang
Publication year - 2000
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.20000180417
Subject(s) - chemistry , triclinic crystal system , cobalt , crystallography , octahedron , crystal structure , denticity , tetrahydrate , imidazole , coordination polymer , center (category theory) , stereochemistry , inorganic chemistry
The crystal structure of the title complex { [ Co (TCB) 2/2‐ (IMI) 2 (H 2 O) 2 ][Co(IMI) 4 (H 2 O) 2 ]}[(H 2 O) 4 (where TCB = 1,2,4,5‐benzenetetracarboxylic anion; IMI= imidazole) has been determined by X‐ray diffraction method. Crystal data for {[Co(TCB) 2/2 (IMI) 2 (H 2 O) 2 ][Co(IMI) 4 (H 2 O) 2 ]}‐(H 2 O) 4 : triclinic, space group P 1, a = 1.0647(2) nm, b =1.1165(1) nm, c = 1.00361(1) nm, α = 91.56(1)°, β = 111.34(1)°, γ= 115.642(10)°, V = 0.9772(3) nm 3 , Z = l. The polymer cobalt(II) complex has a novel three‐dimension network structure. Co(1) atom and Co(2) atom both are coordinated in an octahedral arrangement and located in the center of the coordination anion and the center of the coordination cation, respectively. Moreover four carboxyl groups of TCB are divided into two types, two para ‐carboxyl groups bridge Co (1) atom in monodentate fashion and other two para ‐carboxyl groups are in free.