Communications Chemistry (May 2021)

Ultrafast excited state dynamics and light-switching of [Ru(phen)2(dppz)]2+ in G-quadruplex DNA

  • Chunfan Yang,
  • Qian Zhou,
  • Zeqing Jiao,
  • Hongmei Zhao,
  • Chun-Hua Huang,
  • Ben-Zhan Zhu,
  • Hongmei Su

DOI
https://doi.org/10.1038/s42004-021-00507-0
Journal volume & issue
Vol. 4, no. 1
pp. 1 – 10

Abstract

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Photoactive ruthenium metal complexes are relevant luminescent DNA markers, but deciphering their local excited state dynamics in complex biochemical environments is challenging. Here the authors combine femtosecond and nanosecond pump-probe spectroscopy to elucidate the local hydration effects and 3MLCT relaxation dynamics of [Ru(phen)2(dppz)]2+ in two G-quadruplexes.