title: Synthesis and Characterization of Carbazole-Linked Porphyrin Tweezers.
abstract: Herein the synthesis, spectroscopic characterization, two-photon absorption and electrochemical properties of 3,6-disubstituted carbazole tweezers is reported. A dimer resulting from a Glaser homocoupling was isolated during a Sonogashira coupling reaction between a diethynyl-carbazole spacer and a 5-bromo-triarylporphyrin and the properties of this original compound were compared with the 3,6-disubstituted carbazole bisporphyrin tweezers. The dyads reported herein present a two-photon absorption maximum at 920 nm with two-photon absorption cross-section in the 1200 GM range. Despite a strong linear absorption in the Soret region and moderate fluorescence quantum yield, they both lead to a high brightness reaching 30 000 M(-1)  cm(-1) .
authors.affiliation: Institut de Chimie Moléculaire de l'Université de Bourgogne (UMR 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex (France).
authors.forename: Yi
authors.initials: Y
authors.lastname: Chang
authors.affiliation: Institut de Chimie Moléculaire de l'Université de Bourgogne (UMR 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex (France).
authors.forename: Clément
authors.initials: C
authors.lastname: Michelin
authors.affiliation: Institut de Chimie Moléculaire de l'Université de Bourgogne (UMR 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex (France).
authors.forename: Léo
authors.initials: L
authors.lastname: Bucher
authors.affiliation: Institut de Chimie Moléculaire de l'Université de Bourgogne (UMR 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex (France).
authors.forename: Nicolas
authors.initials: N
authors.lastname: Desbois
authors.affiliation: Institut de Chimie Moléculaire de l'Université de Bourgogne (UMR 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex (France). claude.gros@u-bourgogne.fr.
authors.forename: Claude P
authors.initials: CP
authors.lastname: Gros
authors.affiliation: Conception et Application des Molécules Bioactives (UMR 7199), Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch (France).
authors.forename: Sébastien
authors.initials: S
authors.lastname: Piant
authors.affiliation: Conception et Application des Molécules Bioactives (UMR 7199), Faculté de Pharmacie, 74 route du Rhin, 67401 Illkirch (France). frederic.bolze@unistra.fr.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Bolze
authors.affiliation: Department of Chemistry, University of Houston, Houston, TX 77204-5003 (USA).
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Fang
authors.affiliation: Department of Chemistry, University of Houston, Houston, TX 77204-5003 (USA).
authors.forename: Xiaoqin
authors.initials: X
authors.lastname: Jiang
authors.affiliation: Department of Chemistry, University of Houston, Houston, TX 77204-5003 (USA). kadish@central.uh.edu.
authors.forename: Karl M
authors.initials: KM
authors.lastname: Kadish
keywords: Glaser coupling; Sonogashira coupling; carbazoles; electrochemistry; synthetic methods