The Na2O-SrO-B2O3 diagram in the B-rich part and the crystal structure of NaSrB5O9

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	The Na2O-SrO-B2O3 diagram in the B-rich part and the crystal structure of NaSrB5O9
	Wu, L ; Zhang, Y ; Chen, XL ; Kong, YF ; Sun, TQ ; Xu, JJ ; Xu, YP
刊名	JOURNAL OF SOLID STATE CHEMISTRY
	2007
卷号	180 期号:4 页码:1470
ISSN号	0022-4596
中文摘要	The subsolidus phase relations in the B-rich part of the ternary system, Na2O-SrO-B2O3, are investigated by the powder X-ray diffraction method. Four ternary compounds: NaSrBO3, NaSr4B3O9, Na3SrB5O10 and NaSrB5O9 were found in it, the two lasts are new. NaSrB5O9 crystallizes in the monoclinic space group P2(1)/c, with the lattice parameters a = 6.4963(1) angstrom, b = 13.9703(2) angstrom, c = 8.0515(l) angstrom, beta = 106.900(1)degrees. Na3SrB5O9 is also monoclinic, space group C2, a = 7.290(1) angstrom, b = 13.442(2) angstrom c = 9.792(1) angstrom, beta = 109.60(1). NaSrB5O9 is isostructural with another pentaborate NaCaB5O9, and its structure was refined by Rietveld method based on the structural model of NaCaB5O9. The fundamental building units are [B5O9](3-) anionic groups, forming complex thick anionic sheets, extending parallel to the ac plane. The Na and Sr atoms are all eight-coordinated with O atoms, forming trigonal dodecahedra. The [NaO8] polyhedra are distributed between the B-O sheets, while the [SrO8] polyhedra located in the sheets and connect with each other by edges to form infinite chains along the c-axis. (c) 2007 Elsevier Inc. All rights reserved.
收录类别	SCI
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/45355]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wu, L,Zhang, Y,Chen, XL,et al. The Na2O-SrO-B2O3 diagram in the B-rich part and the crystal structure of NaSrB5O9[J]. JOURNAL OF SOLID STATE CHEMISTRY,2007,180(4):1470.
APA	Wu, L.,Zhang, Y.,Chen, XL.,Kong, YF.,Sun, TQ.,...&Xu, YP.(2007).The Na2O-SrO-B2O3 diagram in the B-rich part and the crystal structure of NaSrB5O9.JOURNAL OF SOLID STATE CHEMISTRY,180(4),1470.
MLA	Wu, L,et al."The Na2O-SrO-B2O3 diagram in the B-rich part and the crystal structure of NaSrB5O9".JOURNAL OF SOLID STATE CHEMISTRY 180.4(2007):1470.