Assembled Multinuclear Ruthenium(II)–NNNN Complexes: Synthesis, Catalytic Properties, and DFT Calculations
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https://figshare.com/articles/dataset/Assembled_Multinuclear_Ruthenium_II_NNNN_Complexes_Synthesis_Catalytic_Properties_and_DFT_Calculations/11412912
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资源简介：
Using a coordinatively unsaturated 16-electron mononuclear
ruthenium(II)-pyrazolyl-imidazolyl-pyridine
complex [Ru(II)–NNN] as the building block and oligopyridines
as the polydentate ligands, pincer-type tri- and hexanuclear ruthenium(II)
complexes [Ru(II)–NNNN]n were efficiently
assembled. These complexes were characterized by elemental analyses,
NMR, IR, and MALDI-TOF mass spectroscopies. In refluxing 2-propanol,
the multinuclear ruthenium(II)–NNNN complexes exhibited exceptionally
high catalytic activity for the transfer hydrogenation of ketones
at very low concentrations and reached turnover frequencies (TOFs)
up to 7.1 × 106 h–1, featuring a
remarkable cooperative effect from the multiple Ru(II)–NNNN
functionalities. DFT calculations have revealed the origin of the
high catalytic activities of these Ru(II)–NNNN complexes.
创建时间：
2019-12-19
