Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/14468
Title: Solvent-Dependent Deprotonation of meso-Pyrimidinylcorroles: Absorption and Fluorescence Studies
Authors: Kruk, Mikalai
Ngo, Thien H.
Savva, Vadim
Starukhin, Aleksander
Dehaen, Wim
MAES, Wouter 
Issue Date: 2012
Publisher: AMER CHEMICAL SOC
Source: JOURNAL OF PHYSICAL CHEMISTRY A, 116 (44), p. 10704-10711
Abstract: The absorption spectra of 10-(4,6-dichloropyrimidin-5-yl)-5,15-dimesitylcorrole have been studied in 15 solvents. The formation of deprotonated corrole species was found to account for the dramatic changes in the absorption spectra in several solvents. Careful analysis of the relationship between the formation of deprotonated species and solvent properties results in the conclusion that there is no single solvent parameter correlation, and either multiparameter correlations or specific solute-solvent interactions (preferential solvation of the most acidic NH tautomer or perturbation of intramolecular hydrogen bonding in the macrocycle core) should be considered. The fluorescence properties of the deprotonated pyrimidinylcorrole are also reported for the first time and compared to those of free-base and protonated species.
Notes: [Kruk, Mikalai; Savva, Vadim; Starukhin, Aleksander] Natl Acad Sci, BI Stepanov Inst Phys, Minsk 220072, Byelarus. [Ngo, Thien H.; Dehaen, Wim; Maes, Wouter] Katholieke Univ Leuven, Dept Chem, B-3001 Louvain, Belgium. [Ngo, Thien H.] Free Univ Berlin, Inst Chem & Biochem Organ Chem, D-14195 Berlin, Germany. [Maes, Wouter] Hasselt Univ, Inst Mat Res IMO IMOMEC, B-3590 Diepenbeek, Belgium. kruk@imaph.bas-net; wouter.maes@uhasselt.be
Keywords: Chemistry, Physical; Physics, Atomic, Molecular & Chemical; free-base corroles; core-modified corroles; photophysical properties; nonaqueous media; components; chemistry; acidity; scale; spectroelectrochemistry; electrochemistry
Document URI: http://hdl.handle.net/1942/14468
ISSN: 1089-5639
e-ISSN: 1520-5215
DOI: 10.1021/jp305327c
ISI #: 000310769100007
Category: A1
Type: Journal Contribution
Validations: ecoom 2013
Appears in Collections:Research publications

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