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K5B19O31: A Deep‐Ultraviolet Congruent Melting Compound
Author(s) -
Huang Shuzhao,
Zhou Chen,
Cheng Shichao,
Yu Feng
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902453
Subject(s) - birefringence , ultraviolet , crystallography , materials science , boron , polyhedron , solid state , crystal (programming language) , single crystal , analytical chemistry (journal) , chemistry , optics , optoelectronics , combinatorics , mathematics , physics , organic chemistry , chromatography , computer science , programming language
A potassium borate, K 5 B 19 O 31 , has been obtained via the high‐temperature solid‐state reaction. The single crystal for K 5 B 19 O 31 with dimensions up to 4 mm × 2 mm × 1 mm was grown by the top‐seeded solution growth method. The crystal structure of K 5 B 19 O 31 shows a complex three‐dimensional (3D) frame filled by three different types of K‐based polyhedra. Optical properties and thermal behavior of K 5 B 19 O 31 were carried out. The transmission spectrum of K 5 B 19 O 31 shows that it possesses a UV optical cut‐off edge lower than 180 nm. The birefringence was calculated to be about 0.05 at 1064 nm. Structure‐property relationships were further illuminated via the first‐principles calculation methods.