Issue 29, 2019

Li3Ba4Sc3(BO3)4(B2O5)2: featuring the coexistence of isolated BO3 and B2O5 units

Abstract

A new mixed alkali/alkaline earth scandium borate with the composition Li3Ba4Sc3B8O22, has been obtained using a high-temperature flux method. Its structure contains two types of isolated and almost co-planar BO3 and B2O5 groups and can be described as Li3Ba4Sc3(BO3)4(B2O5)2. Sc atoms connect the oxygen atoms belonging to the BO3 or B2O5 groups in the form of six-coordinated octahedron ScO6 to compose a unique 2[Sc3B8O22] double-layer with the Li and Ba atoms filling in the space among the double layers. Although many kinds of B–O groups have been found in borates, two types of isolated B–O groups coexisting in a single compound is uncommon as it directly violates the Pauling rule of parsimony.

Graphical abstract: Li3Ba4Sc3(BO3)4(B2O5)2: featuring the coexistence of isolated BO3 and B2O5 units

Supplementary files

Article information

Article type
Letter
Submitted
25 May 2019
Accepted
14 Jun 2019
First published
17 Jun 2019

New J. Chem., 2019,43, 11469-11472

Li3Ba4Sc3(BO3)4(B2O5)2: featuring the coexistence of isolated BO3 and B2O5 units

X. Meng, M. Xia and R. Li, New J. Chem., 2019, 43, 11469 DOI: 10.1039/C9NJ02710F

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