配位As(III)硫代酸As(SPh)3和R-As(SPh)2 (R = Me, 2-硝基苯基)对重金属阳离子的不稳定性

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2022-12-08 DOI:10.3233/mgc-220123

P. V. Ioannou, Christina Stamou

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引用次数: 0

摘要

具有两种路易斯碱原子[As(III)和S(II)]的As(III)硫酸盐对重金属盐的配位能力几乎没有研究。我们发现As(SPh)3 (A)、Me-As(SPh)2 (B)和2- o2n - phs -As(SPh)2 (C)与醋酸盐M(OAc)2 (M = Cd, Pb, Hg)反应生成金属硫代苯酚M(SPh)2 (B和Cd(OAc)2反应生成ph -Cd-OAc·Cd(SPh)2)，与HgCl2反应生成(ph -Hg- cl)2·HgCl2除外)。镉和铅(II)的噻吩酸酯对相应的乙酸酯和氯化物无反应，而Hg(SPh)2产生ph -Hg- oac和(PhS-Hg-Cl)2·HgCl2。提出了这些反应的可能机制。

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The instability of coordinated As(III) thiolates, As(SPh)3 and R-As(SPh)2 (R = Me, 2-nitrophenyl), to heavy metal cations

The coordination ability of As(III) thiolates, having two kinds of Lewis base atoms [As(III) and S(II)], towards heavy metal salts was virtually not studied. We have found that As(SPh)3 (A), Me-As(SPh)2 (B), and 2-O2N-PhS-As(SPh)2 (C) with the acetates M(OAc)2 (M = Cd, Pb, Hg) gave the metal thiophenolate M(SPh)2 (except in the case of B and Cd(OAc)2 which gave PhS-Cd-OAc·Cd(SPh)2) and with HgCl2 gave (PhS-Hg-Cl)2·HgCl2. The thiophenolates of cadmium and lead(II) were not reactive towards their corresponding acetates and chlorides, while Hg(SPh)2 gave PhS-Hg-OAc and (PhS-Hg-Cl)2·HgCl2. Likely mechanisms for these reactions are suggested.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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