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Synthesis, Crystal Structures, and Characterization of Two 3d‐3d Heterometallic Coordination Frameworks: [ZnCo(Hcit)Cl] and [ZnCo(Hcit)Br]
Author(s) -
Liu RuiBin,
Zhang JianJun,
Tong Bo,
Liu Xin,
Yang Yang,
Meng ChangGong
Publication year - 2011
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.201000307
Subject(s) - monoclinic crystal system , crystallography , crystal structure , materials science , halogen , citric acid , characterization (materials science) , ligand (biochemistry) , chemistry , nanotechnology , organic chemistry , alkyl , biochemistry , receptor
Reactions between CoO, ZnCl 2 (or ZnBr 2 ), and molten citric acid (Hcit) led to the formation of two 3d‐3d heterometallic coordination frameworks: [ZnCo(Hcit)Cl] ( 1 ) and [ZnCo(Hcit)Br] ( 2 ). X‐ray structure analyses show that both compounds 1 and 2 crystallize in the monoclinic space group P 2 1 / n [ 1 : a = 5.8699(5) Å, b = 17.7963(13) Å, c = 9.2152(8) Å, β = 106.806(4) °, Z = 4, V = 921.53(13) Å 3 ; 2 : a = 5.909(3) Å, b = 17.798(8) Å, c = 9.302(5) Å, β = 106.374(7) °, Z = 4, V = 938.6(8) Å 3 ]. The structures of the two compounds are almost the same except for the terminal halogen ligand. Both of them are 3D frameworks based on citric acid bridging ligands and a 1D backbone chain built of corner‐shared {CoO 6 } and {ZnO 3 Cl} polyhedra. Photoluminescence and thermal stabilities of the compounds were studied.