Synthesis and structure of triosmium clusters bearing an organosilicon ligand

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta Pub Date : 2025-05-18 DOI:10.1016/j.ica.2025.122765

Md. Selim Reza , Subas Rajbangshi , Vladimir N. Nesterov , German E. Pieslinger , Shariff E. Kabir , Shishir Ghosh

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引用次数: 0

Abstract

The reactions of 4-methylquinoline-capped triosmium cluster [Os₃(CO)₉(μ₃-η¹,κ¹-H₃CC₉H₅N)(μ-H)] (1) with various organosilicon ligands of the general formula R'R₂SiH have been examined. Treatment of 1 with R'R₂SiH in refluxing benzene leads to the stepwise formation of [Os₃(CO)₉(SiR₂R)(μ-η¹,κ¹-H₃CC₉H₅N)(μ-H)₂] (2) and [Os₃(CO)₈(SiR₂R)(μ₃-η¹,κ¹-H₃CC₉H₅N)(μ-H)₂] (3), respectively, as confirmed by control experiments. In these reactions, oxidative-addition of the SiH bond to 1 affords 2 whose decarbonylation leads to the formation of 3. X-ray crystallography has been used to determine the molecular structure of the products, while the bonding in them has been investigated by electronic structure calculations. Both 2 and 3 exist as a pair of isomers in solution.

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含有机硅配体的三锇团簇的合成与结构

研究了4-甲基喹啉包封的三锇簇[Os3(CO)9(μ3-η1,κ1-H3CC9H5N)(μ-H)](1)与各种通式R'R2SiH有机硅配体的反应。对照实验证实，用R'R2SiH处理1在回流苯中可逐步生成[Os3(CO)9(SiR2R)(μ-η1,κ1-H3CC9H5N)(μ- h)2](2)和[Os3(CO)8(SiR2R)(μ -η1,κ1-H3CC9H5N)(μ- h)2](3)。在这些反应中，SiH键氧化加成成1生成2,2的脱羰生成3。用x射线晶体学确定了产物的分子结构，并用电子结构计算研究了产物中的键合。2和3在溶液中都以对异构体的形式存在。

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

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.