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Fe5Mo Cluster with Iron-Carbide and Molybdenum-Carbide Bonding Motifs: Structure and Selective Alkyne Reductions
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2017-12-18 00:00:00 , DOI: 10.1021/acs.inorgchem.7b02615
Chris Joseph 1 , Subramaniam Kuppuswamy 1 , Vincent M. Lynch 1 , Michael J. Rose 1
Affiliation  

Herein we report the synthesis, X-ray structure, and characterization of the title pentairon (molybdo)carbido cluster. The reaction of the pentairon (μ5-carbido) dianion [Fe56-C)(μ2-CO)2(CO)12]2– (1) with [Mo(CO)3(chpt)] (chpt = cycloheptatriene) forms the heterohexanuclear cluster [K(benzo-18-crown-6)]2[Fe5Mo(μ6-C)(μ2-CO)3(CO)14] (2). The dianion exhibits a Fe5Mo(μ6-C) core structure supported by three bridging (νCO = 1788 cm–1) and terminal (νCO = 1943 cm–1) CO ligands. Cluster 2 provides the selective reduction of diphenylacetylene to cis-diphenylethylene via a spectroscopically observed cluster-hydride intermediate (1H NMR: δ −26).

中文翻译:

具有碳化铁和碳化钼键合基序的Fe 5 Mo团簇:结构和选择性炔烃的还原

在这里,我们报告标题五甲隆(钼)卡比多团簇的合成,X射线结构和表征。所述pentairon的反应(μ 5 -carbido)二价阴离子的[Fe 5(μ 6 -C)(μ 2 -CO)2(CO)12 ] 2-1同)[沫(CO)3(CHPT)]( CHPT =环庚三烯)形成heterohexanuclear簇[K(苯并-18-冠-6)] 2的[Fe 5沫(μ 6 -C)(μ 2 -CO)3(CO)14 ](2)。二价阴离子呈现出的Fe 5沫(μ 6-C)核心结构由三个桥接(ν支持CO =1788厘米-1)和终端(ν CO =1943厘米-1)CO的配体。簇2通过光谱观察到的簇氢化物中间体(1 H NMR:δ-26)将二苯基乙炔选择性还原为顺式-二苯基乙烯。
更新日期:2017-12-18
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