Related Experiment Video
Updated: Jun 24, 2026

Optical Control of a Neuronal Protein Using a Genetically Encoded Unnatural Amino Acid in Neurons
Published on: March 28, 2016
Hydrogen-bond-mediated photoinduced electron-transfer: novel dimethylaniline-anthracene ensembles formed via
J L Sessler1, M Sathiosatham, C T Brown
1Contribution from the Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA.
Abstract:
The synthesis of a new, noncovalent anthracene-dimethylaniline dyad (ensemble I) held together via guanosine-cytidine Watson-Crick base-pairing interactions is reported. Upon excitation at 420 nm, photoinduced electron-transfer from the dimethylaniline donor to the singlet excited state of the anthracene acceptor occurs, as inferred from a combination of time-resolved fluorescence quenching and transient absorption measurements. In toluene at room temperature, the rate constants for photoinduced intraensemble electron-transfer and subsequent back-electron-transfer (charge recombination) are k(CS) = (3.5 +/- 0.03) x 10(10) s(-1) and k(CR) = (1.42 +/- 0.03) x 10(9) s(-1), respectively.
Related Concept Videos
Cooperative Allosteric Transitions
Cooperative Allosteric Transitions
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Cooperative Allosteric Transitions
Keto–Enol Tautomerism: Mechanism
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...

