Air‐Stable (CAAC)CuCl and (CAAC)CuBH 4 Complexes as Catalysts for the Hydrolytic Dehydrogenation of BH 3 NH 3

Autor:	Michele Soleilhavoup, Mohand Melaimi, Xingbang Hu, Guy Bertrand, Jiaxiang Chu
Rok vydání:	2015
Předmět:	Denticity Hydride Ammonia borane Inorganic chemistry General Chemistry Borane Borohydride Catalysis chemistry.chemical_compound chemistry Polymer chemistry Dehydrogenation Carbene
Zdroj:	Angewandte Chemie International Edition. 54:6008-6011
ISSN:	1521-3773 1433-7851
DOI:	10.1002/anie.201500224
Popis:	The first stable copper borohydride complex [(CAAC)CuBH4] [CAAC = cyclic(alkyl)(amino)carbene] bearing a single monodentate ligand was prepared by addition of NaBH4 or BH3NH3 to the corresponding [(CAAC)CuCl] complex. Both complexes are air-stable and promote the catalytic hydrolytic dehydrogenation of ammonia borane. The amount of hydrogen released reaches 2.8 H2/BH3 NH3 with a turnover frequency of 8400 mol H2 molcat(-1) h(-1) at 25 °C. In a fifteen-cycle experiment, the catalyst was reused without any loss of efficiency.
Databáze:	OpenAIRE
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