Synthesis and Characterization of an Azido-Bridged Dinuclear Ruthenium(II) Polypyridylamine Complex Forming a Mixed-Valence State
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https://figshare.com/articles/dataset/Synthesis_and_Characterization_of_an_Azido_Bridged_Dinuclear_Ruthenium_II_Polypyridylamine_Complex_Forming_a_Mixed_Valence_State/2418310
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资源简介：
We
have synthesized a mononuclear ruthenium(II) azido complex (1) and a dinuclear ruthenium(II) μ-azido complex (2) having N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine (N4Py) as a pentadentate ancillary
ligand. In the crystal structure of 2, intramolecular
π–π stacking was found between the pyridine rings
of the two different N4Py ligands, contributing to stabilize the dinuclear
μ-azido structure. π donation from the HOMO π* orbital
of the μ-azido ligand to the Ru–N(pyr) bond increases
the bond order between the terminal and central N atoms in the μ-azido
ligand to strengthen the N–N bonds of the μ-azido ligand.
The μ-azido complex 2 was revealed to exhibit a
stepwise oxidation behavior in CH3CN to afford a RuII–μ-azido–RuIII mixed-valence
(MV) state upon one-electron oxidation. The MV state of one-electron-oxidized 2 was categorized in the Robin–Day class II with the
electronic coupling constant (Hab) of
570 cm–1.
创建时间：
2016-02-19
