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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Effect of ligand basicity on electrochemically induced linkage isomerization in 2-mercaptopyridine-ruthenium complexes
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Effect of ligand basicity on electrochemically induced linkage isomerization in 2-mercaptopyridine-ruthenium complexes

机译:配体碱性对2-巯基吡啶-钌配合物电化学诱导的键合异构化的影响

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摘要

[Ru(2,2′-bipyridine)_2(L)(2-mercaptopyridine)](PF _6)_2 (L: 4-aminopyridine or isonicotinamide) was synthesized and characterized by ~1H NMR spectroscopy, electrospray ionization-mass spectrometry, and elemental analysis. Cyclic voltammograms revealed that the complex involving isonicotinamide as an ancillary ligand displayed electrochemically induced linkage isomerization between Ru ~(II)-(2-pyS-κS) and Ru~(III)-(2-pyS-κN) (2-pyS: 2-mercaptopyridinato) during the redox reaction of Ru~(III/II), but that the 4-aminopyridine complex did not. The difference in electrochemical behavior is discussed on the basis of basicity of the ancillary ligand L.
机译:合成[Ru(2,2'-联吡啶)_2(L)(2-巯基吡啶)](PF _6)_2(L:4-氨基吡啶或异烟酰胺),并通过〜1H NMR光谱,电喷雾电离质谱,和元素分析。循环伏安图显示,涉及异烟酰胺作为辅助配体的络合物在Ru〜(II)-(2-pyS-κS)和Ru〜(III)-(2-pyS-κN)(2-pyS: Ru-(III / II)的氧化还原反应过程中的2-mercaptopyridinato),但4-aminopyridine络合物没有。基于辅助配体L的碱性讨论了电化学行为的差异。

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