The Scandium Aqua Ion Revisited

IF 3.8 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Comments on Inorganic Chemistry Pub Date : 2018-05-04 DOI:10.1080/02603594.2018.1486303

S. Cotton

引用次数: 5

Abstract

X-ray diffraction studies on scandium salts in solution and in the solid state, have afforded Sc-O bond lengths in the ions [Sc(H2O)n]3+ (n = 6, 7 and 8) as well as for several compounds containing [(H2O)5Sc(μ-OH)2Sc(H2O)5]4+ ions. Several theoretical studies have examined different models for the aqua ion without finding agreement. This review considers these studies. Diffraction results from solutions yield bond lengths which are compared with species of known geometry and coordination number in the solid state, and with different quantum mechanical predictions. On balance, it is considered that a seven-coordinate [Sc(OH2)7]3+ ion is the species found in solution. GRAPHICAL ABSTRACT

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重访水离子钪

对溶液和固态钪盐的x射线衍射研究，得到了[Sc(H2O)n]3+离子(n = 6,7和8)以及含有[(H2O)5Sc(μ-OH)2Sc(H2O)5]4+离子的若干化合物中Sc- o键的长度。一些理论研究检验了水离子的不同模型，但没有找到一致的结果。本综述考虑了这些研究。衍射结果表明，溶液的键长与固体中已知几何和配位数的物质相比较，并与不同的量子力学预测相比较。综上所述，我们认为溶液中的离子为七坐标[Sc(OH2)7]3+离子。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Comments on Inorganic Chemistry 化学-无机化学与核化学

CiteScore

9.00

自引率

1.90%

发文量

审稿时长

>12 weeks

期刊介绍： Comments on Inorganic Chemistry is intended as a vehicle for authoritatively written critical discussions of inorganic chemistry research. We publish focused articles of any length that critique or comment upon new concepts, or which introduce new interpretations or developments of long-standing concepts. “Comments” may contain critical discussions of previously published work, or original research that critiques existing concepts or introduces novel concepts. Through the medium of “comments,” the Editors encourage authors in any area of inorganic chemistry - synthesis, structure, spectroscopy, kinetics and mechanisms, theory - to write about their interests in a manner that is both personal and pedagogical. Comments is an excellent platform for younger inorganic chemists whose research is not yet widely known to describe their work, and add to the spectrum of Comments’ author profiles, which includes many well-established inorganic chemists.