Bis (4,4′-dimethyl-2,2′-bipyridine) ruthenium (Ⅱ) Complexes Containing 2-Arylimidazo- [4,5-f ] [ 1,10 ] phenanthroline: Syntheses, Characterization and Third-order Nonlinear Optical Properties

• 来源期刊: 中国化学(英文版)
• 年，卷（期）: 2002,（11）
• 页码范围: 1235-1240
• 页数: 6页
• 语种: 英文

摘要

Four novel mononuclear ruthenium(Ⅱ) complexes [ Ru(dmb)2L]2+ [dmp = 4,4′-dimethyl-2,2′-bipyridine, L = imidazo-[4,5-f][1,10]phenanthroline(IP), 2-phenylimidazo-[4,5-f][1,10]phenanthroline(PIP),2-(4′-hydroxyphenyl)imidazo-[4,5-f][1, 10]phenanthroline(HOP), 2-(4′-dimethylaminophenyl) imidazo-[4, 5-f] [1, 10] phenanthroline(DMNP)]were synthesized and characterized by ES-MS,1H NMR,UVvis and electrochemistry.The nonlinear optical properties of the ruthenium(Ⅱ) complexes were investigated by Z-scan techniques with 12 ns laser pulse at 540nm,and all of them exhibitboth nonlinear optical (NLO)absorption and self-defocusing effect. The corresponding effective NLO susceptibility |x3|of the complexes is in the range of 2.68×10-12 -4.57×10-12esu.