Regulation of Refractive Index by Halogens in Two-Dimensional Layered Methylsulfonate Halides

IF 4.3 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Inorganic Chemistry Pub Date : 2025-03-06 DOI:10.1021/acs.inorgchem.5c00476

Xue Cao, Xuemei Shi, Piao Tang, Xin Wen, Jindong Chen, Guang Peng, Ning Ye

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Abstract

Herein, a series of unprecedented alkaline earth metal methylsulfonate halides, M(SO₃CH₃)X·nH₂O (M = Sr, Ba; X = Cl, Br, I; n = 2, 4), and Ba₂(SO₃CH₃)₃I·4H₂O were synthesized. They all feature two-dimensional (2D) layered structures with halogen elements inserted between the 2D layers constructed by metal ions and [SO₃CH₃] groups, which are suitable for exploring the influence of halogens on their refractive index. The refractive indexes both parallel and (almost) perpendicular to the 2D layers were calculated through theoretical calculations. We found that the nonpolar halogens exhibited different enhancement in the two directions. The result may guide regulating the birefringence properties of such 2D crystal materials. Besides, the ultraviolet (UV) cutoff edge of Sr(SO₃CH₃)Cl·4H₂O and Ba(SO₃CH₃)Cl·4H₂O can reach 183 and 184 nm, respectively, indicating their potential application in the deep-UV region.

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.