Homometallic Cubane Clusters: Participation of Three-Coordinated Hydrogen in 60-Valence Electron Cubane Core

Inorganic Chemistry
K YuvarajSundargopal Ghosh

Abstract

This work describes the synthesis, structural characterizations, and electronic structures of a series of novel homometallic cubane clusters [(Cp*Ru)2{Ru(CO)2}2BH(μ3-E)(μ-H)B(μ-H)3M], (2, M = Cp*Ru, E = CO; 3, M = Ru(Cp*Ru)2(μ-CO)3(μ-H)BH), E = BH), [(Cp*Ru)3(μ3-CO)(BH)3(μ3-H)3], 4, and [(Cp*Ru)2(μ3-CO){Ru(CO)3}2(BH)2(μ-H)B], 5 (Cp* = η(5)-C5Me5). These cubane clusters have been isolated from a thermally driven reaction of diruthenium analogue of pentaborane(9) [(Cp*RuH)2B3H7], 1, and [Ru3(CO)12]. Structural and spectroscopic studies revealed the existence of triply bridged hydrogen (μ3-H) atoms that participate as a vertex in the cubane core formation for compounds 2, 3, and 4. In addition, the crystal structure of these clusters clearly confirms the presence of an electron precise borane ligand (borylene fragment) which is triply bridged to the trimetallic units. Bonding of these novel complexes has been studied computationally by DFT methods, and the studies demonstrate that the cubane clusters 2 and 3 possess 60 cluster valence electrons (cves) with six metal-metal bonds. All the new compounds have been characterized in solution by mass spectrometry; IR; and (1)H, (11)B, and (13)C NMR studies, and the structural types were ...Continue Reading

References

Sep 15, 1988·Physical Review A: General Physics·A D Becke
Jun 15, 1986·Physical Review. B, Condensed Matter·J P Perdew
Oct 12, 2000·Angewandte Chemie·S GhoshT P Fehlner
Jun 17, 2005·Chemical Communications : Chem Comm·Sundargopal GhoshBruce C Noll
Aug 12, 2005·Chemical Reviews·Jacopo TomasiRoberto Cammi
Nov 10, 2005·Chemical Reviews·Andreas Dreuw, Martin Head-Gordon
Sep 13, 2007·Journal of Computational Chemistry·Noel M O'BoyleKarol M Langner
Aug 13, 2011·Inorganic Chemistry·Arunabha ThakurSundargopal Ghosh
Oct 7, 2011·Chemical Communications : Chem Comm·Shubhankar Kumar BoseSundargopal Ghosh
Jul 12, 2012·Chemistry : a European Journal·Dipak Kumar RoySundargopal Ghosh
Sep 25, 2012·Inorganic Chemistry·Dipak Kumar RoySundargopal Ghosh
Feb 6, 2013·Angewandte Chemie·Dipak Kumar RoySundargopal Ghosh
Feb 5, 2015·Chemical Communications : Chem Comm·Bijan MondalSundargopal Ghosh
May 1, 2007·Journal of Chemical Theory and Computation·Jan AndzelmKim K Baldridge

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Citations

May 25, 2016·Chemistry : a European Journal·K YuvarajSundargopal Ghosh

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