Synthesis and photophysical properties of ruthenium(II) charge transfer sensitizers containing 4,4′-dicarboxy-2,2′-biquinoline and 5,8-dicarboxy-6,7-dihydro-dibenzo[1,10]-phenanthroline

@inproceedings{Islam2001SynthesisAP,
  title={Synthesis and photophysical properties of ruthenium(II) charge transfer sensitizers containing 4,4′-dicarboxy-2,2′-biquinoline and 5,8-dicarboxy-6,7-dihydro-dibenzo[1,10]-phenanthroline},
  author={Ashraful Islam and Hideki Sugihara and Lok Pratap Singh and Kohjiro Hara and Ryuzi Katoh and Yoshinobu Nagawa and Masatoshi Yanagida and Yoshiaki Takahashi and Shigeo Murata and Hironori Arakawa},
  year={2001}
}
Abstract Ruthenium (II) complexes of the type cis -Ru(H 2 dcbiq) 2 X 2 and cis -Ru(H 2 dcdhph) 2 X 2 , where H 2 dcbiq=4,4′-dicarboxy-2,2′-biquinoline, H 2 dcdhph=5,8-dicarboxy-6,7-dihydro-dibenzo[1,10]-phenanthroline, and X=Cl − , NCS − or CN − , have been synthesized and spectroscopically characterized. The resulting complexes show a broad and intense metal-to-ligand charge transfer (MLCT) band in the visible region with a peak between 580 and 700 nm and are emissive at room temperature. The… CONTINUE READING