Crystal structures of the novel hydrated borates Ba{sub 2}B{sub 5}O{sub 9}(OH), Sr{sub 2}B{sub 5}O{sub 9}(OH) and Li{sub 2}Sr{sub 8}B{sub 22}O{sub 41}(OH){sub 2}
- Department of Chemistry and Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, SC 29634 (United States)
- Advanced Photonic Crystals, Fort Mill, SC 29708 (United States)
Three novel hydrated borates Ba{sub 2}B{sub 5}O{sub 9}(OH) (1), Sr{sub 2}B{sub 5}O{sub 9}(OH) (2) and Li{sub 2}Sr{sub 8}B{sub 22}O{sub 41}(OH){sub 2} (3) have been synthesized hydrothermally and their structures determined. Compounds (1) and (2) are isostructural, crystallizing in space group P2{sub 1}/c and having lattice parameters of a=6.6330(13) A, b=8.6250(17) A, c=14.680(3) A, {beta}=93.46(3){sup o} and a=6.4970(13) A, b=8.4180(17) A, c=14.177(3) A, {beta}=94.35(3){sup o}, respectively. Compound (3) crystallizes in P-1 with lattice parameters of a=6.4684(13) A, b=8.4513(17) A, c=14.881(3) A, {alpha}=101.21(3){sup o}, {beta}=93.96(3){sup o}, {gamma}=90.67(3){sup o}. While similar in their axis lengths, (3) differs greatly in structure and formulation from (1) and (2). The structure of (1) and (2) is contrasted to that of the well-known mineral hilgardite (Ca{sub 2}B{sub 5}O{sub 9}Cl.H{sub 2}O). - Graphical abstract: Novel hydrated borate structures. Highlights: > Synthesis and crystal structures of three novel hydrated borates are reported. > Unique descriptive chemistry governing Li{sub 2}Sr{sub 8}B{sub 22}O{sub 41}(OH){sub 2} synthesis is discussed. > Structures of Ba{sub 2}B{sub 5}O{sub 9}(OH) and Sr{sub 2}B{sub 5}O{sub 9}(OH) are contrasted to Ca{sub 2}B{sub 5}O{sub 9}Cl.H{sub 2}O. > Structure of Li{sub 2}Sr{sub 8}B{sub 22}O{sub 41}(OH){sub 2} differs from Ba{sub 2}B{sub 5}O{sub 9}(OH) and Sr{sub 2}B{sub 5}O{sub 9}(OH).
- OSTI ID:
- 21580063
- Journal Information:
- Journal of Solid State Chemistry, Vol. 184, Issue 11; Other Information: DOI: 10.1016/j.jssc.2011.08.023; PII: S0022-4596(11)00463-4; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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