%0 Generic
%A Buss, Joshua
A.
%A Edouard, Guy A.
%A Cheng, Christine
%A Shi, Jade
%A Agapie, Theodor
%D 2015
%T Molybdenum
Catalyzed Ammonia Borane Dehydrogenation:
Oxidation State Specific Mechanisms
%U https://acs.figshare.com/articles/dataset/Molybdenum_Catalyzed_Ammonia_Borane_Dehydrogenation_Oxidation_State_Specific_Mechanisms/2037705
%R 10.1021/ja5059923.s002
%2 https://acs.figshare.com/ndownloader/files/3609012
%K reaction mechanism
%K reaction rate
%K precatalyst oxidation state
%K Mo complexes
%K ammonia borane
%K Oxidation State
%K H 2.
%K Mo 0 N 2
%K MoII
%K AB chemistry
%K 2.0 equiv
%K H 2
%K Molybdenum Catalyzed Ammonia Borane Dehydrogenation
%K Several Mo hydrides
%X Though numerous catalysts for the
dehydrogenation of
ammonia borane (AB) are known, those that release >2 equiv of H2 are uncommon. Herein, we report the synthesis of Mo complexes
supported by a para-terphenyl diphosphine ligand, 1, displaying metal–arene interactions. Both a Mo0 N2 complex, 5, and a MoII bis(acetonitrile) complex, 4, exhibit high levels of
AB dehydrogenation, releasing over 2.0 equiv of
H2. The reaction rate, extent of dehydrogenation, and reaction
mechanism vary as a function of the precatalyst oxidation state. Several
Mo hydrides (MoII(H)2, [MoII(H)]+, and [MoIV(H)3]+) relevant to AB chemistry were characterized.
%I ACS Publications