Header menu link for other important links
X
Metallaheteroboranes containing group 16 elements: An experimental and theoretical study
Moulika Bhattacharyya, Rini Prakash,
Published in Elsevier B.V.
2019
Volume: 883
   
Pages: 71 - 77
Abstract
Thermolysis of diphenyl dichalcogenides, Ph2E2 (E = S, Se and Te) with an insitu generated intermediate, obtained from the reaction of [Cp*WCl4] (Cp* = η5-C5Me5) with [LiBH4·THF], yielded new tungstaheteroboranes, [(Cp*W)2(μ-EPh)(μ3-E)(μ-H)(B3H2EPh)], 1 and 2 (1: E = S; 2: E = Se), and [(Cp*W)2(μ-TePh)B5H5(μ-H)3], 4. Formation of compounds 1 and 2 substantiate the evidence of [(Cp*W)2B4H10], which supports our previous studies. Compound 4 has a capped octahedral geometry that is unique due to the presence of three W-H-B bridging hydrogens in a closo cluster. Alternatively, the shape of cluster 4 can be defined as oblatoarachno that can be derived from a heptagonal bipyramid. All the compounds have been characterized by mass spectrometry, 1H, 11B{1H}, IR and 13C{1H} NMR spectroscopy in solution and the structural architectures of 1 and 4 were unequivocally established by X-ray crystallographic analysis. The density functional theory calculations also yielded geometries in close agreement with the observed structures. © 2019 Elsevier B.V.
About the journal
JournalData powered by TypesetJournal of Organometallic Chemistry
PublisherData powered by TypesetElsevier B.V.
ISSN0022328X
Open AccessNo
Concepts (15)
  •  related image
    Lithium compounds
  •  related image
    Mass spectrometry
  •  related image
    Nuclear magnetic resonance spectroscopy
  •  related image
    Reaction intermediates
  •  related image
    Tungsten
  •  related image
    X ray crystallography
  •  related image
    Dichalcogenides
  •  related image
    DIPHENYL DICHALCOGENIDE
  •  related image
    METALLAHETEROBORANES
  •  related image
    OBLATOARACHNO
  •  related image
    Octahedral geometry
  •  related image
    Structural architecture
  •  related image
    Theoretical study
  •  related image
    X-ray crystallographic analysis
  •  related image
    Density functional theory