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Metal Rich Metallaboranes: Synthesis, Structure and Bonding of pileo -[(Cp*Ru) 2 M(CO) 3 (µ -H)(µ -E)(µ 3 -BH)B 2 H 5 ] (M = Mo, W, E = CO, and M = Mn, E = H) Clusters.
- Source :
-
Inorganics . Jan2024, Vol. 12 Issue 1, p7. 13p. - Publication Year :
- 2024
-
Abstract
- 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23046740
- Volume :
- 12
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Inorganics
- Publication Type :
- Academic Journal
- Accession number :
- 175080706
- Full Text :
- https://doi.org/10.3390/inorganics12010007