Mahata, Partha ; Prabu, Manikanda ; Natarajan, Srinivasan (2009) Time- and temperature-dependent study in the three-component zinc-triazolate-oxybis(benzoate) system: stabilization of new topologies Crystal Growth & Design, 9 (8). pp. 3683-3691. ISSN 1528-7483
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Official URL: http://pubs.acs.org/doi/abs/10.1021/cg900397r
Related URL: http://dx.doi.org/10.1021/cg900397r
Abstract
Three new three-dimensional zinc-triazolate-oxybis(benzoate) compounds, [{Zn3(H2O)2}{C12H8O (COO)2}2{C2H2N3}2]·2H2O (I), [Zn7{C12H8O (COO)2}4{C2H2N3}6]· H2O, (II), and [{Zn5(OH)2} {C12H8O(COO)2}3{C2H2N3}2] (III), have been synthesized by a hydrothermal reaction of a mixture of Zn(OAc)2·2H2O, 4,4'-oxybis(benzoic acid), 1,2,4-triazole, NaOH, and water. Compound I has an interpenetrated diamond structure and II and III have pillared-layer related structures. The formation of a hydrated phase (I) at low temperature and a completely dehydrated phase (III) at high temperature suggests the importance of thermodynamic factors in the formation of three compounds. Transformation studies of I in the presence of water shows the formation of a simple Zn-OBA compound, [Zn(OBA)(H2O)] (IV), at 150 and 180 °C and compound III at 200 °C. The compounds have been characterized by single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis, IR, and photoluminescence studies.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 27798 |
| Deposited On: | 11 Dec 2010 07:54 |
| Last Modified: | 04 Mar 2011 06:00 |
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