Synthesis, characterization and DNA binding studies of [Ruthenium(II)(bpy)2L]2+ where L are derivatives of imidazo[4,5-f]-1,10-phenanthrolines
Three novel ruthenium(II) complexes of the general formula [Ru(II)(bpy)2L]2+ were synthesized, where L = 1,10-phenanthroline derivatives of position 2 imidazole having 3,4-didecyloxy-phenyl (ddip), 3,4-ditetradecyloxy-phenyl (dtip) and 3,4-dihexadecyloxy-phenyl (dhip). All complexes were characteriz...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Kebangsaan Malaysia
2015
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| Online Access: | http://journalarticle.ukm.my/8641/ http://journalarticle.ukm.my/8641/ http://journalarticle.ukm.my/8641/1/18_T.T.C__Ting.pdf |
| Summary: | Three novel ruthenium(II) complexes of the general formula [Ru(II)(bpy)2L]2+ were synthesized, where L = 1,10-phenanthroline derivatives of position 2 imidazole having 3,4-didecyloxy-phenyl (ddip), 3,4-ditetradecyloxy-phenyl (dtip) and 3,4-dihexadecyloxy-phenyl (dhip). All complexes were characterized by elemental analysis, 1H-NMR and ESI-MS. Their photophysical properties have also been studied by UV-visible spectroscopy and fluorescence spectroscopy. The complexes exhibit Ru(II) metal centered emission at approximately 610 nm in acetonitrile solution at room temperature. DNA binding studies were carried out by UV-visible titration, luminescence titration and viscosity studies. The results indicated that [Ru(bpy)2(ddip)]2+ binds to CT-DNA by partial intercalation mode, while [Ru(bpy)2(dtip)]2+ and [Ru(bpy)2(dhip)]2+ bind intercalatively via extended ligands. |
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