A new series of hexa-coordinated Ru(II) complexes of the type [Ru( L )( phen ) 2 ]X ( 1a – d ) and [Ru( L )( bipy ) 2 ]X ( 2a – d ) (where phen = 1,10-phenanthroline, bipy = 2,2′-bipyridine, X = NO 3 , BF 4 , ClO 4 , PF 6 ) have been prepared by the reaction of (E)-2-(((5-((4-methoxyphenyl)ethynyl)pyridin-2-yl)imino)methyl)-4-((4-nitrophenyl)ethynyl)phenol ( L ) with [Ru(phen) 2 ]Cl 2 ·2H 2 O and [Ru(bipy) 2 ]Cl 2 ·2H 2 O. The complexes were characterized by physico-chemical and spectroscopic methods. All complexes are 1:1 conducting and diamagnetic in nature. In acetonitrile solution, the complexes displayed one reversible Ru(II)–Ru(III) oxidation couple and one irreversible Ru(III)–Ru(IV) oxidation and are sensitive to π -acidic character of phen and bipy ligands. The complexes show room-temperature luminescence originated from the lowest energy metal-to-ligand charge transfer excited state and are sensitive to difference in size of the counter anions. All the complexes displayed second harmonic generation by Kurtz-powder technique indicating their potential for the application as a useful NLO material.

中文翻译：

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钌 (II)-2, 2'-联吡啶/1, 10-菲咯啉配合物结合 (E)-2-((((5-((4-甲氧基苯基)乙炔基)pyridin-2-yl)imino)methyl)-4 -((4-硝基苯基)乙炔基)苯酚作为配体

一系列新的 [Ru( L )( phen ) 2 ]X ( 1a – d ) 和 [Ru( L )( bipy ) 2 ]X ( 2a – d ) 类型的六配位 Ru(II) 配合物（其中phen = 1,10-菲咯啉, bipy = 2,2'-联吡啶, X = NO 3 , BF 4 , ClO 4 , PF 6 ) 已通过 (E)-2-(((5-( (4-甲氧基苯基)乙炔基)吡啶-2-基)亚氨基)甲基)-4-((4-硝基苯基)乙炔基)苯酚(L)与[Ru(phen) 2 ]Cl 2 ·2H 2 O和[Ru( bipy) 2 ]Cl 2 ·2H 2 O。通过物理化学和光谱方法对配合物进行了表征。所有配合物本质上都是 1:1 导电和抗磁性的。在乙腈溶液中，配合物显示出一对可逆的 Ru(II)-Ru(III) 氧化对和一对不可逆的 Ru(III)-Ru(IV) 氧化，并且对 phen 和 bipy 配体的 π 酸性特征敏感。这些配合物显示出源自最低能量金属到配体电荷转移激发态的室温发光，并且对抗衡阴离子的大小差异敏感。所有配合物都显示出由库尔兹粉末技术产生的二次谐波，表明它们作为有用的 NLO 材料的应用潜力。