Related Experiment Video
Updated: Jul 17, 2026

A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
Published on: April 28, 2023
Effect of branching on two-photon absorption in triphenylbenzene derivatives
Francesca Terenziani1, Céline Le Droumaguet, Claudine Katan
1Synthèse et ElectroSynthèse Organiques (CNRS, UMR 6510), Université de Rennes 1, Institut de Chimie, Campus Scientifique de Beaulieu, Bât 10A, 35042 Rennes Cedex, France.
Abstract:
The photophysical and linear and nonlinear spectral properties of octupolar compounds with a triphenylbenzene core are investigated and compared with properties of corresponding dipolar branches. A correlation is found between the solvatochromic behavior and the two-photon absorption cross section. Moreover, the nature of the core is found to be responsible for the nature of the coupling between branches; in the studied case only (weak) electrostatic interactions are effective, while other cores, like the triphenylamine moiety, are able to promote coherent coupling between the branches, leading to strongly nonadditive properties.
More Related Videos
Related Concept Videos
NMR Spectroscopy of Benzene Derivatives
Variables Affecting Phosphorescence and Fluorescence
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied first.
Directing and Steric Effects in Disubstituted Benzene Derivatives
Radical Chain-Growth Polymerization: Chain Branching

