Titre | How Dimerization Through a Spiro Junction Modifies the Nonlinear Optical Properties of a Push-Pull Organic Dye: Insights from Theory and Hyper-Rayleigh Scattering |
Type de publication | Article de revue |
Auteur | Castet, Frédéric, Lerychard, Timothée, Pielak, Kornelia, Szalóki, György, Dalinot, Clément, Leriche, Philippe, Sanguinet, Lionel , Champagne, Benoît, Rodriguez, Vincent |
Editeur | John Wiley and Sons Inc. |
Type | Article scientifique dans une revue à comité de lecture |
Année | 2017 |
Langue | Anglais |
Date | Mars 2017 |
Numéro | 3 |
Pagination | 93-101 |
Volume | 1 |
Titre de la revue | ChemPhotoChem |
Résumé en anglais | The second-order nonlinear optical (NLO) properties of a push–pull monomer, as well as of its dimer composed of two monomeric units connected through a non-conjugated spiro junction, are investigated by means of hyper-Rayleigh scattering (HRS) and quantum chemical calculations. It is shown that dimerization to form a molecule with an orthogonal geometry enhances the first hyperpolarizability by circa 20 % and induces a decrease of the dipolar character of the HRS response. Theoretical calculations correlate well with experimental measurements and allow an in-depth rationalization of the impact of the spiro linkage on the NLO properties through a detailed analysis of the relevant electronic excited states. |
URL de la notice | http://okina.univ-angers.fr/publications/ua16601 |
DOI | 10.1002/cptc.201600039 |
Lien vers le document | http://onlinelibrary.wiley.com/doi/10.1002/cptc.201600039/abstract;jsess... |
Titre abrégé | ChemPhotoChem |