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Ammonium aminodiboranate: A long-sought isomer of diammoniate of diborane and ammonia borane dimer

Journal Article


Abstract


  • Ammonium aminodiboranate ([NH4][BH3NH2BH3]) is a long-sought isomer of diammoniate of diborane ([NH3BH2NH3][BH4]) and ammonia borane (NH3BH3) dimer. Our results show that [NH4][BH3NH2BH3] is stable in tetrahydrofuran at -18°C and decomposes rapidly to NH3BH2NH2BH3 and H2 at elevated temperatures. The decomposition pathway is dictated by the dihydrogen bonding between Hδ+ on NH4 + and Hδ- on BH3, as confirmed by theoretical calculations. This is in contrast to the interconversion between [NH3BH2NH3][BH4] and (NH3BH3)2, although all three have dihydrogen bonds and the same stoichiometry.

Authors


  •   Chen, Weidong (external author)
  •   Yu, Haibo
  •   Wu, Guotao (external author)
  •   He, Teng (external author)
  •   Li, Zhao (external author)
  •   Guo, Zaiping
  •   Liu, Hua K.
  •   Huang, Zhenguo (external author)
  •   Chen, Ping (external author)

Publication Date


  • 2016

Citation


  • Chen, W., Yu, H., Wu, G., He, T., Li, Z., Guo, Z., Liu, H., Huang, Z. & Chen, P. (2016). Ammonium aminodiboranate: A long-sought isomer of diammoniate of diborane and ammonia borane dimer. Chemistry - A European Journal, 22 (23), 7727-7729.

Scopus Eid


  • 2-s2.0-84992311210

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2062

Has Global Citation Frequency


Number Of Pages


  • 2

Start Page


  • 7727

End Page


  • 7729

Volume


  • 22

Issue


  • 23

Place Of Publication


  • Germany

Abstract


  • Ammonium aminodiboranate ([NH4][BH3NH2BH3]) is a long-sought isomer of diammoniate of diborane ([NH3BH2NH3][BH4]) and ammonia borane (NH3BH3) dimer. Our results show that [NH4][BH3NH2BH3] is stable in tetrahydrofuran at -18°C and decomposes rapidly to NH3BH2NH2BH3 and H2 at elevated temperatures. The decomposition pathway is dictated by the dihydrogen bonding between Hδ+ on NH4 + and Hδ- on BH3, as confirmed by theoretical calculations. This is in contrast to the interconversion between [NH3BH2NH3][BH4] and (NH3BH3)2, although all three have dihydrogen bonds and the same stoichiometry.

Authors


  •   Chen, Weidong (external author)
  •   Yu, Haibo
  •   Wu, Guotao (external author)
  •   He, Teng (external author)
  •   Li, Zhao (external author)
  •   Guo, Zaiping
  •   Liu, Hua K.
  •   Huang, Zhenguo (external author)
  •   Chen, Ping (external author)

Publication Date


  • 2016

Citation


  • Chen, W., Yu, H., Wu, G., He, T., Li, Z., Guo, Z., Liu, H., Huang, Z. & Chen, P. (2016). Ammonium aminodiboranate: A long-sought isomer of diammoniate of diborane and ammonia borane dimer. Chemistry - A European Journal, 22 (23), 7727-7729.

Scopus Eid


  • 2-s2.0-84992311210

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2062

Has Global Citation Frequency


Number Of Pages


  • 2

Start Page


  • 7727

End Page


  • 7729

Volume


  • 22

Issue


  • 23

Place Of Publication


  • Germany