Influence of bromine substitution pattern on the singlet oxygen generation efficiency of two-photon absorbing chromophoresElectronic supplementary information (ESI) available: Synthesis, analytical characterization, discussion on the excited state kinetics, 1H and 13C NMR spectra, HPLC traces, solvatochromism study, 77 K time-gated luminescence, fluorescence and 1O2 phosphorescence plots, including those of compound 2Br. See DOI: 10.1039/c2ob25536g

A molecular engineering strategy based on rational variations of the bromine substitution pattern in two-photon absorbing singlet oxygen sensitizers allows studying the relations that exist between the positioning of an inter-system crossing promoter on the charge-transfer chromophore and its abilit...

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Main Authors: Lanoë, Pierre-Henri, Gallavardin, Thibault, Dupin, Aurore, Maury, Olivier, Baldeck, Patrice L, Lindgren, Mikael, Monnereau, Cyrille, Andraud, Chantal
Format: Article
Language:English
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Summary:A molecular engineering strategy based on rational variations of the bromine substitution pattern in two-photon absorbing singlet oxygen sensitizers allows studying the relations that exist between the positioning of an inter-system crossing promoter on the charge-transfer chromophore and its ability to generate singlet oxygen. Position of bromine substituents along the backbone of quadrupolar chromophores determines their two-photon induced singlet oxygen generation efficiency.
ISSN:1477-0520
1477-0539
DOI:10.1039/c2ob25536g