新型氟铝酸锰钠晶体 Na2Mn2(C2O4)2.5F-2H2O：合成、结构、光学和热学特性

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2024-09-27 DOI:10.1016/j.jssc.2024.125031

Sen Ji , Lei Kang , Yanyang Han , Shanshan Liu , Ye Liu , Xin Yang , Kai Feng

引用次数: 0

摘要

通过离子液体辅助溶热法获得了一种新型三维氟代草酸锰钠--Na2Mn2(C2O4)2.5F-2H2O。Na2Mn2(C2O4)2.5F-2H2O 结晶于三linic P1‾ 空间群，单胞参数为 a = 7.9129(4) Å，b = 8.8497(4) Å，c = 8.9252(5) Å，α = 74.623(4) o，β = 72.361(5) o，γ = 78.193(4) o，Z = 2。基本结构单元为 Mn1O6F 和 Mn2O5F 多面体，它们通过共用 C2O4 基团和 F 原子连接起来，构建了一个三维框架 [Mn4(C2O4)5F2]∞34-，Na+ 和 H2O 占据了孔隙。通过紫外-可见-近红外漫反射得到的带隙为 3.24 eV。此外，Na2Mn2(C2O4)2.5F-2H2O 还具有 0.064@550 纳米的中等双折射。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A novel sodium manganese fluorooxalate crystal Na2Mn2(C2O4)2.5F·2H2O: Synthesis, structure, optical and thermal properties

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A novel sodium manganese fluorooxalate crystal Na2Mn2(C2O4)2.5F·2H2O: Synthesis, structure, optical and thermal properties

A novel three-dimensional sodium manganese fluorooxalate, Na₂Mn₂(C₂O₄)_2.5F·2H₂O, has been obtained by an ionic-liquid-assisted solvothermal method. Na₂Mn₂(C₂O₄)_2.5F·2H₂O crystallizes in the triclinic

P \overline{1}

space group with unit cell parameters of a = 7.9129(4) Å, b = 8.8497(4) Å, c = 8.9252(5) Å, α = 74.623(4) ^o, β = 72.361(5) ^o, γ = 78.193(4) ^o, and Z = 2. The basic structural units are Mn1O₆F and Mn2O₅F polyhedra, which are linked by sharing C₂O₄ groups and F atoms to build a three-dimensional framework

{}_{\infty}^{3}{[{Mn}_{4} {(C_{2} O_{4})}_{5} F_{2}]}^{4 -}

with Na⁺ and H₂O occupying the pores. The band gap obtained by UV–Vis–NIR diffuse reflectance is 3.24 eV. In addition, Na₂Mn₂(C₂O₄)_2.5F·2H₂O delivers a moderate birefringence of 0.064@550 nm.

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.