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Cooperative Two‐Photon Absorption Enhancement by Through‐Space Interactions in Multichromophoric Compounds
Author(s) -
Terenziani Francesca,
Parthasarathy Venkatakrishnan,
PlaQuintana Anna,
Maishal Tarun,
Caminade AnneMarie,
Majoral JeanPierre,
BlanchardDesce Mireille
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200903519
Subject(s) - absorption (acoustics) , space (punctuation) , exciton , photon , series (stratigraphy) , physics , computer science , chemical physics , chemistry , statistical physics , optics , quantum mechanics , biology , paleontology , operating system
Space invaders : A series of multichromophores (from dimers to dendritic 24‐mers) is synthesized, spectroscopically characterized, and theoretically modeled. Enhancement of the two‐photon absorption response depends on the number and distribution of chromophoric subunits (see picture, red) and increases with their proximity. The exciton model indicates purely electrostatic interactions.