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Evaluating Metal Ion Identity on Catalytic Silylation of Dinitrogen Using a Series of Trimetallic Complexes.


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.

SUBMITTER: Eaton MC 

PROVIDER: S-EPMC7566828 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Evaluating Metal Ion Identity on Catalytic Silylation of Dinitrogen Using a Series of Trimetallic Complexes.

Eaton Mary C MC   Knight Brian J BJ   Catalano Vincent J VJ   Murray Leslie J LJ  

European journal of inorganic chemistry 20200221 15-16


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 (<b>L</b> <sup><b>3-</b></sup> ). Yields are expectedly dependent on metal ion type ranging from 14 to 199 equiv NH<sub>4</sub> <sup>+</sup>/complex after protonolysis for the Mn to Co congeners, respectively. For the series of complexes, the number of turnovers trend observed is Co > Fe > C  ...[more]

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