Affiliation:
1. Laboratorium der Rütgersweike AG, Castrop-Rauxel
Abstract
Abstract
Photoluminescence (ethanol, 77 K) of 2-naphthylamine (I), its N,N-dimethyl derivative (II), 1-methyl-naphthalene (III) and 1-naphthyl-9-carbazyl-methane (IV) in the presence of AgNO3 has been studied. The results obtained can be explained assuming different types of Ag+-compIexing with the π-donor: (i) Covalent linkage between Ag and N in the case of I, (ii) Charge-transfer complexation with the aromatic units of II and III , respectively, and (iii) Charge-transfer complexation with the carbazole in IV as the stronger π-donor compared to 1-methyl-naphthalene. Most of the photophysical properties of the systems AgNO3/π-donor can be understood as resulting from heavy atom spin-orbit coupling effects. However, a strong effect of AgNO3 on the structure of the phosphorescence spectra of II and III is shown not to result from heavy atom spin-orbit coupling interaction.
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics
Cited by
7 articles.
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