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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
Author(s) -
Chao Hui,
Li RunHua,
Huang QiWen,
Ji LiangNian
Publication year - 2002
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20020201115
Subject(s) - chemistry , ruthenium , phenanthroline , electrochemistry , medicinal chemistry , stereochemistry , photochemistry , crystallography , organic chemistry , catalysis , electrode
Four novel mononuclear ruthenium(II) complexes [Ru(dmb) 2 L] 2+ [dmb = 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, 1 H NMR, UV‐vis and electrochemistry. The nonlinear optical properties of the ruthenium(II) complexes were investigated by Z‐scan techniques with 12 ns laser pulse at 540 nm, and all of them exhibit both nonlinear optical (NLO) absorption and self‐defocusing effect. The corresponding effective NLO susceptibility | x 3 | of the complexes is in the range of 2.68 × 10 −12 ‐4.57 × 10 −12 esu.