首页   按字顺浏览 期刊浏览 卷期浏览 Absorption and Luminescence Spectra of Tetra (3-Pyridyl)Porphyrazine: A Convergent Spec...
Absorption and Luminescence Spectra of Tetra (3-Pyridyl)Porphyrazine: A Convergent Spectroscopic Method for the Elucidation of Association Reactions in Solution

 

作者: MarcosM. Toyama,   Koiti Araki,   HenriqueE. Toma,  

 

期刊: Spectroscopy Letters  (Taylor Available online 1998)
卷期: Volume 31, issue 5  

页码: 1065-1074

 

ISSN:0038-7010

 

年代: 1998

 

DOI:10.1080/00387019808003284

 

出版商: Taylor & Francis Group

 

关键词: Porphyrazine spectra;molecular association;luminescence

 

数据来源: Taylor

 

摘要:

Tetra(3-pyridyl)porphyrazine is soluble in trifluoroethanol yielding intense blue solutions. The electronic spectra exhibit the characteristic Soret and Q bands around 330 and 610 nm, respectively; however, the absorption profile is strongly dependent on the concentration, reflecting the occurrence of an association process. The system has been elucidated by solving the equilibrium and the absorbance-concentration equations for all the wavelengths in the spectral range, according to a variational procedure. In this way the consistent spectra of the individual species have been generated. The study has also been extended to the luminescence properties of the porphyrazine molecule, and discussed in terms of the ground state association and the exciplex formation involving the monomeric species.

 

点击下载:  PDF (332KB)



返 回