BaTi(BO3)2: an excellent birefringent material with highly coplanar isolated [BO3] groups
- 13 April 2021
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 45 (16), 7065-7068
- https://doi.org/10.1039/d1nj00754h
Abstract
A material with a large birefringence is needed for optical systems, and borate is a good choice as an excellent birefringent material. Herein, we report two borates BaMIV(BO3)2 (MIV = Ti, Sn), in which the [TiO6] and [SnO6] units have similar coordination environments. Moreover, the experimental birefringence of BaTi(BO3)2 is equal to or larger than 0.169 at 546 nm measured by using a polarizing microscope, which mainly originates from the high-density and parallel arrangement of the isolated [BO3] groups. This discovery indicates that BaTi(BO3)2 can be a promising ultraviolet birefringent material.Keywords
Funding Information
- National Natural Science Foundation of China (U2003131, 61835014, 51972336)
- Chinese Academy of Sciences (2020-XBQNXZ-002, GJJSTD20200007, KFJ-STS-QYZD-130, QYZDB-SSW-JSC049)
- Natural Science Foundation of Xinjiang Province (2019D01A93)
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