| Autor: |
Schoonover JR; Los Alamos National Laboratories, Los Alamos, New Mexico 87545, USA., Dattelbaum DM, Malko A, Klimov VI, Meyer TJ, Styers-Barnett DJ, Gannon EZ, Granger JC, Aldridge WS 3rd, Papanikolas JM |
| Jazyk: |
angličtina |
| Zdroj: |
The journal of physical chemistry. A [J Phys Chem A] 2005 Mar 24; Vol. 109 (11), pp. 2472-5. |
| DOI: |
10.1021/jp044444j |
| Abstrakt: |
The time scale for triplet-triplet energy transfer (EnT) between a Ru(II) chromophore and a ligand bound anthracene acceptor in [Ru(II)(dmb)2(bpy-an)]2+ (dmb = 4,4'-dimethyl-2,2-bipyridine; bpy-an = 4-(9-anthrylethylene), 4-methyl-2,2-bipyridine) has been measured using femtosecond transient absorption spectroscopy. The appearance of the anthracene excited state is monitored following photoexcitation to a metal-to-ligand charge transfer (MLCT) state via the pi pi* absorption of the triplet excited state of anthracene. Our time-resolved experiments show the presence of fast, sub-100 ps energy transfer to the anthracene occurring on two characteristic time scales of 23 and 72 ps. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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