Na2B12Si6Se18: A Novel B12-Cluster-containing Quaternary Selenoborate Framework Material

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2024-12-09 DOI:10.1039/d4dt03139c

Gopabandhu Panigrahi, Hunter B Tisdale, Gregory Morrison, Hans-Conrad Zur Loye

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引用次数: 0

Abstract

We report the successful synthesis of the new quaternary, three-dimensional Na₂Si₆B₁₂Se₁₈ material using a solid-state synthesis route. This compound is characterized by a unique framework structure that features the rare icosahedral [B12]10+ cation which is connected via Si2Se6 polyhedral units into a 3D framework structure with Na⁺ ions located inside the channels. The Na2Si6B12Se18 compound crystallizes in the cubic crystal system in the space group Im¯3, with lattice parameter a = 11.91110(10) Å and unit cell volume of 1689.88(4) Å³. The 3D framework of the [Si6B12Se18]²⁻ anion contains B₁₂ icosahedra with six of their edges bridged by tetrahedral SiSe4 groups. The B12 icosahedral units are connected by the SiSe4 tetrahedral units which bridge between each B₁₂ icosahedron. Ultraviolet-Visible (UV-vis) spectroscopy revealed that Na2Si6B12Se18 exhibits semiconducting behavior with an estimated bandgap of 2.1(1) eV. In-situ powder X-ray diffraction (PXRD) studies were conducted to investigate the phase formation of this compound as a function of temperature to obtain information of its thermal stability and structural evolution.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.