Remarkable structural transformation of [Zn(tza)2] during recrystallization, syntheses and crystal structures of [M(tza)2] (M = Zn, Cd, Mn, Co; Htza = tetrazole-1-acetic acid)
被引:77
作者:
Dong, Wen-Wen
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Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
Dong, Wen-Wen
[1
,2
]
Zhao, Jun
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Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
Zhao, Jun
[1
,2
]
Xu, Li
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Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
Xu, Li
[1
]
机构:
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
The substitution reactions of M(CH3CH2CO2)(2) and Htza afford the crystalline precipitates-of [Cd(tza)(2)] (1), [Mn(tza)(2)] (2), [Co(tza)(2)] (3), and beta-[Zn(tza)(2)] (5). The recrystallization of 5 leads to the formation of alpha-[Zn(tza)(2)] (4). X-ray powder diffraction of 1-5 reveal that 1, 2, 3, and 5 are allomers, but 4 and 5 are isomers, revealing the unprecedented structural transformation during the process of recrystallization. Compounds 1-4 have been characterized by X-ray single-crystal crystallography, IR, and magnetism analysis. Structural analyses and comparison of 1-4 detail the structural evolution of from beta-[Zn(tza)(2)] (5) to alpha-[Zn(tza)(2)] (4) and possible driving force has been proposed. The interactions between the Mn-II ions of 2 have been observed as weakly antiferromagnetic.
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页码:2882 / 2886
页数:5
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