[C(NH 2 ) 3 ] 6 Mo 7 O 24 : A Guanidinium Molybdate as a UV Nonlinear Optical Crystal with Large Birefringence.

Autor:	Lv MH; Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China., Li SF; Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China., Ren MM; Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China., Wang JX; Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China., Tang RL; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China., Chen J; College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350002, China., Huang H; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China., Zhang B; College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China., Yan D; Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
Jazyk:	angličtina
Zdroj:	Inorganic chemistry [Inorg Chem] 2024 Feb 26; Vol. 63 (8), pp. 3948-3954. Date of Electronic Publication: 2024 Feb 13.
DOI:	10.1021/acs.inorgchem.3c04344
Abstrakt:	The key to searching novel nonlinear optical (NLO) crystals was effectively combining the NLO-active units to obtain a noncentrosymmetric structure. Nevertheless, the present predicament lies in the growing challenge of discovering novel crystals within conventional inorganic frameworks that surpass the properties of the current NLO materials. In view of this, researchers expanded their research focus to the organic-inorganic hybridization system; it is foreseeable to concentrate the advantages from several kinds of NLO-active units to acquire novel NLO crystals with superior properties. We herein report an organic-inorganic hybrid molybdate crystal, namely, [C(NH 2 ) 3 ] 6 Mo 7 O 24 (GMO). It was successfully obtained via combining inorganic NLO-active MoO 6 octahedra and organic π-conjugated [C(NH 2 ) 3 ] + groups. GMO demonstrates a moderate second-harmonic-generation response, specifically measuring about 1.3 times the value of KDP. Additionally, it exhibits a significant birefringence value of 0.203 at the wavelength of 550 nm and possesses a wide band gap of 3.31 eV. Theoretical calculations suggest that the optical properties of the GMO are primarily influenced by the synergy effect of [C(NH 2 ) 3 ] + groups between MoO 6 octahedra.
Databáze:	MEDLINE
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