Synthesis and solvent effects on the electronic absorption and fluorescence spectral properties of substituted zinc phthalocyanines

Polyhedron ◽  
2007 ◽  
Vol 26 (12) ◽  
pp. 2767-2776 ◽  
Author(s):  
Mahmut Durmuş ◽  
Tebello Nyokong
2003 ◽  
Vol 42 (13) ◽  
pp. 4062-4070 ◽  
Author(s):  
Karl M. Kadish ◽  
Jianguo Shao ◽  
Zhongping Ou ◽  
Claude P. Gros ◽  
Frédéric Bolze ◽  
...  

2009 ◽  
Vol 13 (12) ◽  
pp. 1206-1213 ◽  
Author(s):  
Jinping Xue ◽  
Lixuan Cai ◽  
Naisheng Chen ◽  
Jinling Huang

The synthesis of tetrasubstituted zinc phthalocyanines bearing quinolinoxy groups are reported for the first time. The new compounds have been characterized by elemental analysis, IR, MS and electronic spectroscopy. The photophysical properties, such as the electronic absorption spectra and fluorescence spectra, have also been investigated and discussed together with the influence of substituent position and organic solvents on these properties. The introduction of quinolinoxy group to the Pc ring was found to affect these photophysical properties to some extent.


2010 ◽  
Vol 14 (09) ◽  
pp. 793-803 ◽  
Author(s):  
Maria Pia Donzello ◽  
Elisa Viola ◽  
Larisa A. Tomachinskaya ◽  
Claudio Ercolani ◽  
Maddalena Corsini ◽  
...  

New styryl-substituted tetrapyrazinoporphyrazines [St8PyzPzM] (M = 2NaI , MgII(H2O) and ZnII ; St = -CH=CHAr , where Ar = phenyl or cumyl) were prepared by template cyclotetramerization of 5,6-distyrylpyrazine-2,3-dicarbonitriles available from condensation of diaminomaleodinitrile with the substituted cinnamils (StCO)2 obtained from biacetyl and arylaldehydes ArCHO . The new porphyrazine macrocycles were characterized by electronic absorption and emission spectra, which provide evidence of efficient π-interaction of the peripheral styryl moieties with the central pyrazinoporphyrazine framework. The electronic excitation of the stylbenoid chromophore in the near UV-region (400 nm) leads to strong emission of the porphyrazine chromophore near 700 nm, allowing to consider the styryl-substituted porphyrazines as efficient light-harvesting species. Their spectral properties and electrochemical behavior are compared with those of stylbenoid phthalocyanines and peripherally substituted tetrapyrazinoporphyrazines.


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