Journal
LANGMUIR
Volume 33, Issue 15, Pages 3680-3684Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.7b00512
Keywords
-
Funding
- Uchida Energy Foundation
- Suzuki-zaidan Research Foundation
- JSPS KAKENHI, Japan [50362281]
- Grants-in-Aid for Scientific Research [17H05477, 24107003, 26620166, 17K19173] Funding Source: KAKEN
Ask authors/readers for more resources
A novel type of energy donor-acceptor system on a clay surface has been prepared. The energy transfer between an energy-donating cationic pyrene derivative (An-Py2+) and an energy-accepting tris(bipyridine)ruthenium complex (Ru2+) on the clay surface was investigated using absorption, emission, and lifetime measurements. An obvious energy transfer was observed, and one Ru2+ molecule quenched the emission from five molecules of An-Py2+ with an emission quenching efficiency of 85% on the clay surface. This suggests that the light energies absorbed by five of the An-Py2+ molecules were accumulated in the one Ru2+ molecule. Near-quantitative emission quenching was observed for stoichiometric amounts of An-Py2+ and Ru2+. The apparent quenching rate constant is approximately 10(17) L mol(-1) s(-1), and thus the quenching rate constant is 10(7)-10(8) times higher than the diffusion rate constant in a homogeneous solution.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available