Synthesis, structural analysis, and thermal decomposition studies of [(NH3)(2)BH2]B3H8

Huang, Zhenguo, Lingam, Hima K., Chen, Xuenian, Porter, Spencer, Du, Aijun, Woodard, Patrick M., Shore, Sheldon G. and Zhao, Ji-Cheng (2013) Synthesis, structural analysis, and thermal decomposition studies of [(NH3)(2)BH2]B3H8. RSC Advances, 3 20: 7460-7465. doi:10.1039/c3ra22836c

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Author Huang, Zhenguo
Lingam, Hima K.
Chen, Xuenian
Porter, Spencer
Du, Aijun
Woodard, Patrick M.
Shore, Sheldon G.
Zhao, Ji-Cheng
Title Synthesis, structural analysis, and thermal decomposition studies of [(NH3)(2)BH2]B3H8
Formatted title
Synthesis, structural analysis, and thermal decomposition studies of [(NH3)2BH2]B3H8
Journal name RSC Advances   Check publisher's open access policy
ISSN 2046-2069
Publication date 2013-05-28
Sub-type Article (original research)
DOI 10.1039/c3ra22836c
Open Access Status Not Open Access
Volume 3
Issue 20
Start page 7460
End page 7465
Total pages 6
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2014
Language eng
Formatted abstract
Boron–nitrogen containing compounds with high hydrogen contents as represented by ammonia borane (NH3BH3) have recently attracted intense interest for potential hydrogen storage applications. One such compound is [(NH3)2BH2]B3H8 with a capacity of 18.2 wt% H. Two safe and efficient synthetic routes to [(NH3)2BH2]B3H8 have been developed for the first time since it was discovered 50 years ago. The new synthetic routes avoid a dangerous starting chemical, tetraborane (B4H10), and afford a high yield. Single crystal X-ray diffraction analysis reveals N–Hδ+⋯Hδ–B dihydrogen interactions in the [(NH3)2BH2]B3H8·18-crown-6 adduct. Extended strong dihydrogen bonds were observed in pure [(NH3)2BH2]B3H8 through crystal structure solution based upon powder X-ray analysis. Pyrolysis of [(NH3)2BH2]B3H8 leads to the formation of hydrogen gas together with appreciable amounts of volatile boranes below 160 °C.
Keyword Hydrolytic hydrogen-release
Inorganic butane analog
Ammonia-borane
Compound Alb4H11
Storage
Diammoniate
Diborane
Octahydrotriborate
Nh3Bh2Nh2Bh3
Hydrides
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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