Ruthenium(II) complexes with the tetradentate 6,6′-bis(oxazolinyl or benzimidazolyl)-2,2′-bipyridine ligand: synthesis, electrochemical properties, and catalytic reactivities
Ruthenium(II) complexes with the tetradentate 6,6′-bis(oxazolinyl or benzimidazolyl)-2,2′-bipyridine ligand: synthesis, electrochemical properties, and catalytic reactivities
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钌(II)与四齿6,6-双(恶唑啉基或苯并咪唑基)-2,2-联吡啶配体的配合物：合成、电化学性质和催化反应性
DOI：
10.1016/s0020-1693(97)05479-0
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Masa
中科院分区：
文献类型：
--
作者：
K. Mizushima;M. Nakaura;Soon;H. Nishiyama;H. Monjushiro;Kazumasa Harada;Masa
合成了新的钌配合物反式-[RuX2(L)]（L=四齿6,6′-双（恶唑啉基或苯并咪唑基）-2,2′-联吡啶；X=卤化物或氰化物离子）。目前的 Ru 配合物揭示了稳定的 Ru(II/III) 氧化过程，并在 450-600 nm 附近表现出强的 MLCT 谱带。氧化电位取决于轴向卤素配体；电势按 X=Cl<Br<CN 的顺序增加。该配合物具有苯乙烯和1-苯基乙醇氧化的催化活性。与类似的双(恶唑啉基)联吡啶络合物相比，双(苯并咪唑基)联吡啶络合物具有更强的氧化能力。
New ruthenium complexes, trans-[RuX2(L)] (L = tetradentate 6,6′-bis(oxazolinyl or benzimidazolyl)-2,2′-bipyridine; X=halide or cyanide ion) have been synthesized. The present Ru complexes reveal a stable Ru(II/III) oxidation process and exhibit strong MLCT bands around 450–600 nm. The oxidation potential depends on the axial halogeno ligand; the potential increases in the order of X=Cl<Br<CN. The complexes possess catalytic activity for oxidation of styrene and 1-phenylethanol. The bis(benzimidazolyl)bipyridine complex has stronger oxidizing power compared to the analogous bis(oxazolinyl)bipyridine complex.