Mary C Eaton1, Brian J Knight1, Vincent J Catalano2, Leslie J Murray1. 1. Center for Catalysis, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200 (USA). 2. Department of Chemistry, University of Nevada, Reno, NV 89557 (USA).
Abstract
We report catalytic silylation of dinitrogen to tris(trimethylsilyl)amine by a series of trinuclear first row transition metal complexes (M = Cr, Mn, Fe, Co, Ni) housed in our tris(β-diketiminate) cyclophane (L 3- ). Yields are expectedly dependent on metal ion type ranging from 14 to 199 equiv NH4 +/complex after protonolysis for the Mn to Co congeners, respectively. For the series of complexes, the number of turnovers trend observed is Co > Fe > Cr > Ni > Mn, consistent with prior reports of greater efficacy of Co over Fe in other ligand systems for this reaction.
We report catalytic silylation of n class="Chemical">dinitrogen to tris(trimethylsilyl)amine by a series of trinuclear first row transition metalcomplexes (M = Cr, Mn, Fe, Co, Ni) housed in our tris(β-diketiminate) cyclophane (L 3- ). Yields are expectedly dependent on metal ion type ranging from 14 to 199 equiv NH4 +/complex after protonolysis for the Mn to Cocongeners, respectively. For the series of complexes, the number of turnovers trend observed is Co > Fe > Cr > Ni > Mn, consistent with prior reports of greater efficacy of Co over Fe in other ligand systems for this reaction.
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