Packing polymorphism of a two-dimensional copper(i) 3-amino-1,2,4-triazolate coordination polymer

Reaction of Cu2(OH)2CO3 and 3-amino-1,2,4-triazole (Hatz) in aqueous ammonia under hydrothermal condition generates copper(i) triazolate with three different forms, namely [small alpha]-[Cu(atz)] (1[small alpha], P21/c, a = 3.6325(6) A, b = 10.284(2) A, c = 10.481(2) A, [small beta] = 97.379(3)[degr...

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Bibliographic Details
Published in:CrystEngComm 2011-01, Vol.13 (11), p.3827-3831
Main Authors: Chen, Da, Liu, Yi-Jiang, Lin, Yan-Yong, Zhang, Jie-Peng, Chen, Xiao-Ming
Format: Article
Language:English
Subjects:
Ammonia
Beta
Chemical composition
Coordination polymers
Curved
Polymorphism
Structural analysis
Two dimensional
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Summary:Reaction of Cu2(OH)2CO3 and 3-amino-1,2,4-triazole (Hatz) in aqueous ammonia under hydrothermal condition generates copper(i) triazolate with three different forms, namely [small alpha]-[Cu(atz)] (1[small alpha], P21/c, a = 3.6325(6) A, b = 10.284(2) A, c = 10.481(2) A, [small beta] = 97.379(3)[degree], V = 388.3(1) A3), [small beta]-[Cu(atz)] (1[small beta], Pbca, a = 10.3115(9) A, b = 10.498(1) A, c = 14.744(1) A, V = 1596.0(3) A3), and [gamma]-[Cu(atz)] (1[gamma], P21/c, a = 8.4608(7) A, b = 10.3198(9) A, c = 10.5728(9) A, [small beta] = 118.944(8)[degree], V = 807.8(1) A3). Structural analyses revealed that the three structures have the same chemical composition and essentially identical local and two-dimensional coordination structures, and their structural differences only arise from different packing fashions of the curved layers, which is a new mode of supramolecular isomerism in coordination polymers. The photoluminescence property of the title compound was also studied.
ISSN:1466-8033
1466-8033
DOI:10.1039/c1ce05230f