使用一系列三金属配合物评估金属离子特性对二氮催化硅氢化反应的影响。
Evaluating Metal Ion Identity on Catalytic Silylation of Dinitrogen Using a Series of Trimetallic Complexes.
作者信息
Eaton Mary C, Knight Brian J, Catalano Vincent J, Murray Leslie J
机构信息
Center for Catalysis, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200 (USA).
Department of Chemistry, University of Nevada, Reno, NV 89557 (USA).
出版信息
Eur J Inorg Chem. 2020 Apr 30;2020(15-16):1519-1524. doi: 10.1002/ejic.201901335. Epub 2020 Feb 21.
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 ( ). Yields are expectedly dependent on metal ion type ranging from 14 to 199 equiv NH /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.
摘要
我们报道了一系列包含在三（β-二酮亚胺）环番（ ）中的三核第一行过渡金属配合物（M = Cr、Mn、Fe、Co、Ni）催化二氮硅氢化生成三（三甲基硅基）胺的反应。质子olysis后，产率预期取决于金属离子类型，对于Mn到Co的同系物，分别为14至199当量的NH /配合物。对于该系列配合物，观察到的周转数趋势为Co > Fe > Cr > Ni > Mn，这与先前报道的在该反应的其他配体体系中Co比Fe具有更高效率一致。
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