Structure of Sr{sub 3}Sc(BO{sub 3}){sub 3}
- Oregon State Univ., Corvallis, OR (United States)
The structure of the compound Sr{sub 3}Sc(BO{sub 3}){sub 3} is described. Crystal data: FW = 484.24 amu, R{bar 3} (No. 148), hexagonal axes, a = 12.135(1), c = 9.184(1) {angstrom}, V = 1171.3(2) {angstrom}{sup 3}, Z = 6, Mo K{alpha} ({lambda} = 0.710 69 {angstrom}), {mu} = 206.38 cm{sup {minus}1}, F(000) = 1332, T = 296 K, R = 0.018, R{sub w} = 0.022 for 725 averaged reflections. The structure exhibits chains comprised of Sc-centered O octahedra and BO{sub 3} triangles that are bridged by 9-coordinate Sr atoms. Each chain contains two crystallographically independent Sc atoms; the distorted octahedral environment about atom Sc1 is compressed along the trigonal axis, O1-Sc1-O1 = 85.20(7){degrees}, while the environment about atom Sc2 is elongated along the same axis, O2-Sc2-O2 = 92.28(7){degrees}. These angles are consistent with the chemical inequivalence of the environments as determined by their associations with neighboring Sr atoms. 5 refs., 4 figs., 3 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 98745
- Journal Information:
- Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 11 Vol. 6; ISSN CMATEX; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- English
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