Ammonium Aminodiboranate: A Long-Sought Isomer of Diammoniate of Diborane and Ammonia Borane Dimer
| Autor: | Zaiping Guo, Haibo Yu, Hua-Kun Liu, Ping Chen, Zhao Li, Zhenguo Huang, Weidong Chen, Teng He, Guotao Wu |
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| Rok vydání: | 2016 |
| Předmět: |
Hydrogen bond
Dimer Organic Chemistry Inorganic chemistry Ammonia borane Boranes 02 engineering and technology General Chemistry Borane 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Medicinal chemistry Catalysis 0104 chemical sciences Ammonia chemistry.chemical_compound chemistry 0210 nano-technology Tetrahydrofuran Diborane |
| Zdroj: | Chemistry (Weinheim an der Bergstrasse, Germany). 22(23) |
| ISSN: | 1521-3765 |
| Popis: | Ammonium aminodiboranate ([NH4 ][BH3 NH2 BH3 ]) is a long-sought isomer of diammoniate of diborane ([NH3 BH2 NH3 ][BH4 ]) and ammonia borane (NH3 BH3 ) dimer. Our results show that [NH4 ][BH3 NH2 BH3 ] is stable in tetrahydrofuran at -18 °C and decomposes rapidly to NH3 BH2 NH2 BH3 and H2 at elevated temperatures. The decomposition pathway is dictated by the dihydrogen bonding between H(δ+) on NH4 (+) and H(δ-) on BH3 , as confirmed by theoretical calculations. This is in contrast to the interconversion between [NH3 BH2 NH3 ][BH4 ] and (NH3 BH3 )2 , although all three have dihydrogen bonds and the same stoichiometry. |
| Databáze: | OpenAIRE |
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