Explorations of new selenites of the group IIIA and IVA metals
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002 (China)
Systematic explorations of new phases in the Ga{sup III}/In{sup III}/Ge{sup IV}-Se{sup IV}-O systems by hydrothermal syntheses or solid-state reactions at high-temperature led to six new ternary compounds, namely, M{sub 2}Se{sub 2}O{sub 7} (M=Ga 1, In 2), M(OH)(SeO{sub 3}) (M=Ga 3, In 4), {alpha}-Ge(SeO{sub 3}){sub 2}5 and {beta}-Ge(SeO{sub 3}){sub 2}6. Ga{sub 2}Se{sub 2}O{sub 7}1 displays a 3D open framework composed of 2D gallium oxide layers being further bridged and capped by SeO{sub 3} groups. In{sub 2}Se{sub 2}O{sub 7}2 features a 3D indium oxide framework formed by corner- and edge- sharing InO{sub 6} octahedra with SeO{sub 3} groups attached on the cavities and the 8-member ring tunnels of the structure. The isostructural of M(OH)(SeO{sub 3}) (M=Ga 3, In 4) exhibit a 2D metal selenite layer composed of 1D edge-sharing MO{sub 6} octahedral chains that are interconnected by SeO{sub 3} groups. {alpha}-Ge(SeO{sub 3}){sub 2} (P2{sub 1}/n) 5 displays a 3D open framework with 1D 8-member ring tunnels along the a-axis while {beta}-Ge(SeO{sub 3}){sub 2} (Pa-3) 6 exhibits a condensed 3D network. - Graphical abstract: Highlights: Black-Right-Pointing-Pointer Up to now, selenites of the group IIIA and IVA metals are still rare. Black-Right-Pointing-Pointer Hydrothermal or solid state reactions yielded six new compounds in this system. Black-Right-Pointing-Pointer They are M{sub 2}Se{sub 2}O{sub 7} (M=Ga, In), M(OH)(SeO{sub 3}) (M=Ga, In), {alpha}-Ge(SeO{sub 3}){sub 2} and {beta}-Ge(SeO{sub 3}){sub 2}. Black-Right-Pointing-Pointer They exhibit four different 3D and one 2D structural types. Black-Right-Pointing-Pointer {alpha}-Ge(SeO{sub 3}){sub 2} and {beta}-Ge(SeO{sub 3}){sub 2} represent the first examples of germanium selenites.
- OSTI ID:
- 22012134
- Journal Information:
- Journal of Solid State Chemistry, Vol. . 190; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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