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Title: Synthesis and structural characterization of an open cage dithiatungstaborane [(CpW)2B4H4S2] cluster
Authors: Dhayal, Rajendra Singh
Joseph, Ponniah S
Sahoo, Satyanarayan
Ghosh, Sundargopal
Keywords: Coordination Chemistry;Metallaboranes;Open cage compounds;Chalcogens;Metallaheteroborane clusters;Tungsten;Boron
Issue Date: Sep-2011
Publisher: NISCAIR-CSIR, India
Abstract: Reaction of Cp#MCl4, (1 or 2) [(1): M = Mo, Cp# = Cp* (Cp* = 5-C5Me5) and (2): M = W, Cp# = Cp (Cp = 5-C5H5)] with excess of [LiBH4.thf] followed by thermolysis with excess of [HS(CH2)nSH] (n = 2 or 3), leads to the formation of [(Cp*Mo)2B4H4S2] (3) or [(CpW)2B4H4S2] (4) respectively. Corresponding to (3) and (4), the compounds [(M)2B5H9] (M = CpW, (5) or Cp*Mo, (6)) are isolated as major product in both the cases. These new compounds have been characterized in solution by mass, 1H, 11B, 13C NMR spectroscopy. The structural types have been unequivocally established by X-ray crystallographic analysis of compounds (4).
Page(s): 1363-1368
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.50A(09-10) [September-October 2011]

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