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New Syntheses and Structural Characterization of NH₃BH₂Cl and (BH₂NH₂)₃ and Thermal Decomposition Behavior of NH₃BH₂Cl.

Authors :
Lingam, Hima K.
Wang, Cong
Gallucci, Judith C.
Chen, Xuenian
Shore, Sheldon G.
Source :
Inorganic Chemistry. 12/17/2012, Vol. 51 Issue 24, p13430-13436. 7p.
Publication Year :
2012

Abstract

New convenient procedures for the preparation of ammonia monochloroborane (NH₃BH₂Cl) and cyclotriborazane [(BH₂NH₂)₃] are described. Crystal structures have been determined by single-crystal X-ray diffraction. Strong H...Cl...H bifurcated hydrogen bonding and weak N--H...H dihydrogen bonding are observed in the crystal structure of ammonia monochloroborane. When heated at 50 °C or under vacuum, ammonia monochloroborane decomposes to (NH₂BHCl)x, which was characterized by NMR, elemental analysis, and powder X-ray diffraction. Redetermination of the crystal structure of cyclotriborazane at low temperature by single-crystal X-ray diffraction analysis provides accurate hydrogen positions. Similar to ammonia borane, cyclotriborazane shows extensive dihydrogen bonding of N--H‥H and B--H...H bonds with Hδ+‥Hδ+‥ interactions in the range of 2.00--2.34 A. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00201669
Volume :
51
Issue :
24
Database :
Academic Search Index
Journal :
Inorganic Chemistry
Publication Type :
Academic Journal
Accession number :
84608958
Full Text :
https://doi.org/10.1021/ic302308v