Variable dimensionality and framework found in a series of quaternary zinc selenites, A(2)Zn(3)(SeO3)(4)center dot xH(2)O (A = Na, Rb, and Cs; 0 <= x <= 1) and Cs2Zn2(SeO3)(3)center dot 2H(2)O
- Authors
- Lu, Minfeng; Jo, Hongil; Oh, Seung-Jin; Ok, Kang Min
- Issue Date
- Jan-2017
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- Alkali metal selenites; Building units; Stereochemically active lone pairs; Single crystal X-ray diffraction
- Citation
- JOURNAL OF SOLID STATE CHEMISTRY, v.245, pp 1 - 9
- Pages
- 9
- Journal Title
- JOURNAL OF SOLID STATE CHEMISTRY
- Volume
- 245
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/4933
- DOI
- 10.1016/j.jssc.2016.09.031
- ISSN
- 0022-4596
1095-726X
- Abstract
- Five new alkali metal zinc selenites, A(2)Zn(3)(SeO3)(4)center dot xH(2)O (A = Na, Rb, and Cs; 0 <= x <= 1) and Cs2Zn2(SeO3)(3)center dot 2H(2)O have been synthesized by heating a mixture of ZnO, SeO2 and A(2)CO(3) (A = Na, Rb, and Cs), and characterized by X-ray diffraction (XRD) and spectroscopic analyses techniques. All of the reported materials revealed a rich structural chemistry with different frameworks and connection modes of Zn2+. While Rb2Zn3(SeO3)(4) and Cs2Zn3(SeO3)(4)center dot H2O revealed three-dimensional frameworks consisting of isolated ZnO4 tetrahedra and SeO3 polyhedra, Na2Zn3(SeO3)(4), Cs2Zn3(SeO3)(4), and Cs2Zn2(SeO3)(3)center dot 2H(2)O contained two-dimensional [Zn-3(SeO3)(4)](2-) layers. Specifically, whereas isolated ZnO4 tetrahedra and SeO3 polyhedra are arranged into two-dimensional [Zn-3(SeO3)(4)](2-) layers in two cesium compounds, circular [Zn3O10](14-) chains and SeO3 linkers are formed in two-dimensional [Zn-3(SeO3)(4)](2-) layers in Na2Zn3(SeO3)(4). Close structural examinations suggest that the size of alkali metal is significant in determining the framework geometry as well as connection modes of transition metal cations.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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