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Synthesis and crystal structure of a novel hexaborate, Na2ZnB6O11

Published online by Cambridge University Press:  29 February 2012

Y. Q. Chen ,
J. K. Liang ,
Y. X. Gu ,
J. Luo ,
J. B. Li  and
G. H. Rao
Y. Q. Chen
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
J. K. Liang*
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China International Center for Materials Physics, Academic Sinica, Shenyang 110016, China
Y. X. Gu
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
J. Luo
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
J. B. Li
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
G. H. Rao
Affiliation:
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
*
a)Author to whom correspondence should be addressed. Electronic mail: jkliang@aphy.iphy.ac.cn
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Abstract

A novel hexaborate, Na2ZnB6O11, has been successfully synthesized by solid-state reaction and ab initio crystal-structure analysis has been completed using powder X-ray diffraction data. The compound crystallizes in the monoclinic space group Cc with lattice parameters a=10.7329(2) Å b=7.4080(3) Å, c=11.4822(2) Å, and β=112.16(2)°. The number of chemical formula per unit cell is Z=4 and the calculated density is 2.768(3) g/cm3. It represents a new structure type in which double-bridge-ring [B6O11]4− groups were found as fundamental building units. The infrared spectrum confirms the presence of both [BO3]3− groups and [BO4]5− groups.

Keywords

Na2ZnB6O11crystal structurepowder diffractionhexaboratesynthesis
Type
Technical Articles
Information
Powder Diffraction , Volume 25 , Issue 1 , March 2010 , pp. 9 - 14
Copyright
Copyright © Cambridge University Press 2010

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