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


Autoria(s): Huang, Zhenguo; Lingam, Hima K.; Chen, Xuenian; Porter, Spencer; Du, Aijun; Woodard, Patrick M.; Shore, Sheldon G.; Zhao, Ji-Cheng
Data(s)

01/03/2013

Resumo

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.

Identificador

http://eprints.qut.edu.au/59646/

Publicador

RSC Publishing

Relação

DOI:10.1039/C3RA22836C

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

Fonte

School of Chemistry, Physics & Mechanical Engineering; Science & Engineering Faculty

Tipo

Journal Article