Sr3 [SnOSe3 ][CO3 ]: A Heteroanionic Nonlinear Optical Material Containing Planar π-conjugated [CO3 ] and Heteroleptic [SnOSe3 ] Anionic Groups.
Angew Chem Int Ed Engl
; 61(21): e202201616, 2022 May 16.
Article
em En
| MEDLINE
| ID: mdl-35266263
ABSTRACT
Inorganic heteroanionic materials are attracting increasing attention for exploring new nonlinear optical (NLO) materials because they could better satisfy the necessary but conflicting properties of NLO crystals, e.g. large SHG response and wide band-gap. Up to now, the reports on heteroanionic NLO materials have mainly focused on ultraviolet or visible oxide-based fluoroborates, fluorophosphates, borate-phosphates and borate-iodates. However, chalcogenides containing different kinds of anionic groups have barely been reported. Herein, we have synthesized the first oxychalcogenide-carbonate, Sr3 [SnOSe3 ][CO3 ] that contains two different kinds of anionic groups, [SnOSe3 ] and [CO3 ]. It crystallizes in a noncentrosymmetric space group and exhibits fascinating NLO properties, including a large SHG response (≈1×AGS), sufficient birefringence (0.12 @1064â
nm), wide band-gap (3.46â
eV) and high laser damage threshold (240â
MW cm-2 ). These make Sr3 [SnOSe3 ][CO3 ] a promising NLO crystal.
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MEDLINE
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En
Ano de publicação:
2022
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Article