%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