Mixed-Anion and Mixed-Cation Borohydride KZn(BH4)Cl-2: Synthesis, Structure and Thermal Decomposition

DB Ravnsbaek, LH Sorensen, Y Filinchuk, Daniel Reed, David Book, HJ Jakobsen, F Besenbacher, J Skibsted, TR Jensen

Research output: Contribution to journalArticle

46 Citations (Scopus)


KZn(BH4)Cl-2, synthesized for the first time, contains a heteroleptic complex anion [Zn(BH4)Cl-2](-), extending the structural diversity of metal borohydrides. In-situ synchrotron powder diffraction, NMR and Raman spectroscopy were used to characterize KZn(BH4)Cl-2 and to evaluate the mechanism for its thermal decomposition. The title compound decomposes at a significantly lower temperature than KBH4 and may be used for inspiration for the design of novel hydrogen storage materials. Combining different ligands in modified metal borohydrides is proposed as a way to adjust stability with respect to hydrogen desorption.
Original languageEnglish
Pages (from-to)1608-1612
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Issue number11
Publication statusPublished - 1 Apr 2010


  • Solid-phase synthesis
  • Hydrides
  • Transition metals
  • Solid-state structures
  • X-ray diffraction


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