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Synthesis and Dehydrogenation of Organic Salts of a Five‐Membered B/N Anionic Chain, a Novel Ionic Liquid
Author(s) -
Chen XiMeng,
Jiang Xin,
Jing Yi,
Chen Xuenian
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202100632
Subject(s) - chemistry , dehydrogenation , thermal decomposition , ionic liquid , catalysis , medicinal chemistry , inorganic chemistry , halide , metathesis , melting point , hydrolysis , aqueous solution , polymer chemistry , organic chemistry , polymerization , polymer
We have synthesized the tetrabutylammonium ([Bu 4 N] + ), tetraethylammonium ([Et 4 N] + ), guanidinium ([C(NH 2 ) 3 ] + ), and methylguanidinium ([C(N 3 H 5 CH 3 )] + ) salts of the [BH 3 (NH 2 BH 2 ) 2 H] − anion, a five‐membered B/N anionic chain, in high yields by the metathesis reactions of Na[BH 3 (NH 2 BH 2 ) 2 H] with the corresponding halides and characterized them by NMR ( 11 B, 11 B{ 1 H}, 1 H, 1 H{ 11 B}, 13 C), IR, elemental analysis, TGA‐DSC, and TGA‐MS. These complexes behave like ionic liquids (ILs), in which the melting point of the [Bu 4 N][BH 3 (NH 2 BH 2 ) 2 H] is the lowest (−51 °C). The dehydrogenation of these ILs have been studied through the thermal decomposition and catalytic hydrolysis in aqueous solution using the noble or non‐noble metals or their salts as catalysts, and the results indicate that these ILs of five‐membered B/N anionic chain are promising hydrogen storage materials.