富金属金属硼烷:堆-[(Cp*Ru)2M(CO)3(µ-H)(µ-E)(µ3-BH)B2H5](M = Mo、W,E = CO 和 M = Mn、E = H)团簇的合成、结构和键合

IF 3.1 4区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Inorganics Pub Date : 2023-12-23 DOI:10.3390/inorganics12010007
A. Pradhan, Shippy Jaiswal, Marie Cordier, J. Halet, Sundargopal Ghosh
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引用次数: 0

摘要

报告了一系列杂三金属钌硼烷团簇的合成和结构特征。nido-[(Cp*Ru)2(µ-H)2B3H7](nido-1)(Cp* = 1,2,3,4,5-五甲基环戊二烯)与[M(CO)5-THF](THF = 四氢呋喃、M = Mo 和 W)产生了杂三金属簇堆-[(Cp*Ru)2{M(CO)3}(µ-CO)(µ-H)(µ3-BH)B2H5],M = Mo (2)、W (3)和已知的阿拉奇诺钌硼烷[1,2-(Cp*Ru)(Cp*RuCO)(µ-H)B3H8](I)和[{Cp*Ru(CO)}2B2H6](II)。为了合成 2 和 3 的锰同系物,我们用[Mn2(CO)10]对 nido-1 进行了类似的反应、我们尝试用[Mn2(CO)10]与 nido-1 进行类似的反应,得到了杂三金属堆积-[(Cp*Ru){Mn(CO)3}(µ-H)2(µ3-BH)B2H5] (4) 簇,以及已报道的三金属氢rido(氢溴酸)物种[(Cp*Ru)2{Mn(CO)3}(µ-H)(µ-CO)3(µ-BH)] (III)。钌硼烷 2、3 和 4 具有等电子性和等结构性。2-4 的几何形状可以看作是一个三角形面融合的正方形金字塔和四面体几何形状,其中四面体的顶点被一个 µ3-BH 分子占据。所有这些堆积钌硼烷簇都符合明戈斯的融合形式主义。利用多核核磁共振、红外光谱和电喷雾离子化质谱对 2-4 簇合物进行了表征。簇 2 和簇 4 的单晶 X 射线衍射研究证实了它们的结构。此外,还对这些堆积钌硼烷进行了密度泛函理论(DFT)研究,以探究其键合、聚变和电子结构的性质。
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Metal Rich Metallaboranes: Synthesis, Structure and Bonding of pileo-[(Cp*Ru)2M(CO)3(µ-H)(µ-E)(µ3-BH)B2H5] (M = Mo, W, E = CO, and M = Mn, E = H) Clusters
The synthesis and structural characterization of a series of heterotrimetallic ruthenaborane clusters are reported. The photolytic reaction of nido-[(Cp*Ru)2(µ-H)2B3H7] (nido-1) (Cp* = 1,2,3,4,5-pentamethylcyclopentadienyl) with [M(CO)5·THF] (THF = tetrahydrofuran, M = Mo and W) yielded the heterotrimetallic clusters pileo-[(Cp*Ru)2{M(CO)3}(µ-CO)(µ-H)(µ3-BH)B2H5], M = Mo (2), W (3) and the known arachno ruthenaboranes [1,2-(Cp*Ru)(Cp*RuCO)(µ-H)B3H8] (I) and [{Cp*Ru(CO)}2B2H6] (II). In an attempt to synthesize the Mn-analog of 2 and 3, we performed a similar reaction of nido-1 with [Mn2(CO)10], which afforded the heterotrimetallic pileo-[(Cp*Ru){Mn(CO)3}(µ-H)2(µ3-BH)B2H5] (4) cluster along with the reported trimetallic hydrido(hydroborylene) species [(Cp*Ru)2{Mn(CO)3}(µ-H)(µ-CO)3(µ-BH)] (III). Ruthenaboranes 2, 3 and 4 are isoelectronic and isostructural. The geometry of 2–4 can be viewed as a triangle face-fused square pyramidal and tetrahedral geometry, in which the apical vertex of the tetrahedron is occupied by a µ3–BH moiety. All of these pileo ruthenaborane clusters obey Mingos’ fusion formalism. Clusters 2–4 were characterized using multinuclear NMR, IR spectroscopies and electrospray ionization mass spectrometry. The single-crystal X-ray diffraction studies of clusters 2 and 4 confirmed their structures. Further, density functional theory (DFT) studies of these pileo ruthenaboranes have been carried out to investigate the nature of bonding, fusion and electronic structures.
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来源期刊
Inorganics
Inorganics Chemistry-Inorganic Chemistry
CiteScore
2.80
自引率
10.30%
发文量
193
审稿时长
6 weeks
期刊介绍: Inorganics is an open access journal that covers all aspects of inorganic chemistry research. Topics include but are not limited to: synthesis and characterization of inorganic compounds, complexes and materials structure and bonding in inorganic molecular and solid state compounds spectroscopic, magnetic, physical and chemical properties of inorganic compounds chemical reactivity, physical properties and applications of inorganic compounds and materials mechanisms of inorganic reactions organometallic compounds inorganic cluster chemistry heterogenous and homogeneous catalytic reactions promoted by inorganic compounds thermodynamics and kinetics of significant new and known inorganic compounds supramolecular systems and coordination polymers bio-inorganic chemistry and applications of inorganic compounds in biological systems and medicine environmental and sustainable energy applications of inorganic compounds and materials MD
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