Abstract
The structure of the NbBr4 molecule is studied in synchronous electron diffraction and mass spectrometry experiments. Gaseous niobium tetrabromide is synthesized in the course of the experiment during the interaction of niobium chips with bromine at 496°C. Analysis of the geometrical models of the NbBr4 molecules of C2v, C3v, D2d, and Td symmetries shows that the tetrahedral model is preferable. The thermally averaged parameters of the effective configuration of the NbBr4 molecule are as follows: rg(Nb−Br)=2.418(5) Å, l(Nb−Br)=0.074(2) Å, rg(Br−Br)=3.921(16) Å, l(Br−Br)=0.271(12) Å, δ(Br−Br)=0.027(18) Å.
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Additional information
Ivanovo Chemical Engineering Academy. Ivanovo State University. Translated fromZhurnal Strukturnoi Khimii, Vol. 37, No. 2, pp. 265–274, March–April, 1996.
Translated by I. Izvekova
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Belova, I.N., Giricheva, N.I., Girichev, G.V. et al. Electron diffraction study of the structure the NbBr4 molecule. J Struct Chem 37, 232–239 (1996). https://doi.org/10.1007/BF02591052
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DOI: https://doi.org/10.1007/BF02591052