TY  - INPR
A1  - Dietzsch, Julia
A1  - Jayachandran, Ajay
A1  - Mueller, Stefan
A1  - Höbartner, Claudia
A1  - Brixner, Tobias
T1  - Excitonic coupling of RNA-templated merocyanine dimer studied by higher-order transient absorption spectroscopy
T2  - Chemical Communications
N2  - We report the synthesis and spectroscopic analysis of RNA containing the barbituric acid merocyanine rBAM2 as a nucleobase surrogate. Incorporation into RNA strands by solid-phase synthesis leads to fluorescence enhancement compared to the free chromophore. In addition, linear absorption studies show the formation of an excitonically coupled H-type dimer in the hybridized duplex. Ultrafast third- and fifth-order transient absorption spectroscopy of this non-fluorescent dimer suggests immediate (sub-200 fs) exciton transfer and annihilation due to the proximity of the rBAM2 units.
KW  - Barbituric Acid Merocyanines
KW  - Nucleobase Surrogate Incorporation
KW  - Higher-order Transient Absorption Spectroscopy
KW  - rBAM2-labeled RNA strands
Y1  - 2023
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/32777
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-327772
ER  -