| Optical Properties of Ru(bipy)_2(dppx)~(2 ) in Different Environments |
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| 作者姓名： | CHEN Fang~ AI Xin-ping~ HE Zhi-ke~ . College of Chemistry and Molecular Sciences Wuhan University Wuhan Hubei China . |
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| 作者单位： | CHEN Fang~1，2，AI Xin-ping~1，HE Zhi-ke~1 1. College of Chemistry and Molecular Sciences，Wuhan University，Wuhan 430072，Hubei，China; 2. Department of Chemistry，Huazhong University of Science and Technology，Wuhan 430074，Hubei，China |
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| 基金项目： | SupportedbyNationalNaturalScienceFoundationofChina(20275028)andtheNationalKeyBasicResearchandDevelopmentProgram(973Program2002CB211800) |
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| 摘 要： | 0Introduction Withtheincreasinginterestinginthestudyoftheinter actionbetweenpolypyridylruthenium(Ⅱ)complexesandDNA,ligandsderivedfromvariousmodificationof2,2′bipyridine(bipy)and1,10phenanthroline(phen)havebeen developed.Oneofthemostinterestingobservationsisthedis coveryofthemolecular“lightswitch”complexes1].Theyarenotphotoluminescentinwaterbutdoemitinnonaqueoussol ventsorinthepresenceofDNA.Atfirst,thecomplexesRu(bipy)2(dppz)2 andRu(phen)2(dppz)2 (dppz=dipyrido3,2a:2′,3′c]phena zine…
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Optical Properties of Ru(bipy)2(dppx)2 + in Different Environments |
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| Abstract: | The emission spectra of Ru(bipy)_2(dppx)~2 in different environments has been studied. It was found that the solvent polarity and the ability of donating and transferring proton are the important factors in predicting luminescence intensity in different systems. The increasing content of water in the organic solutions of Ru(bipy)_2(dppx)~2 leads to decrease in emission intensity that follows the Perrin sphere of quenching model. The effect of base content of DNA on the fluorescence spectra of Ru(bipy)_2(dppx)~2 has also been studied. |
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| Keywords: | Ru(bipy)_2(dppx)~(2 ) fluorescence DNA |
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