Document Detail

Solvatochromic behavior of the electronic absorption spectra of some azo derivatives of amino pyridines.
MedLine Citation:
PMID:  15477158     Owner:  NLM     Status:  MEDLINE    
The electronic absorption spectra of a series of the entitled eight compounds containing groups with variable electronic characters were recorded. The solvents were selected to cover a wide range of parameters (refractive index, dielectric constant and hydrogen bonding capacity). The electronic transitions are assigned and the solvent induced spectral shifts have been analyzed in relation to the different solute-solvent interaction mechanisms using computational chemistry. The regression analysis is applied for correlation parameters. The phenomenon of tautomerism is explained. The electronic character of the substituent as well as the chemistry of the solvent are the major factors for the solvatochromic behavior.
Mamdouh S Masoud; Alaa E Ali; Medhat A Shaker; Mohamed Abdul Ghani
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy     Volume:  60     ISSN:  1386-1425     ISO Abbreviation:  Spectrochim Acta A Mol Biomol Spectrosc     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-10-12     Completed Date:  2005-03-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9602533     Medline TA:  Spectrochim Acta A Mol Biomol Spectrosc     Country:  England    
Other Details:
Languages:  eng     Pagination:  3155-9     Citation Subset:  IM    
Chemistry Department, Faculty of Science, Alexandria University, Egypt.
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MeSH Terms
Azo Compounds / chemistry*
Molecular Structure
Pyridines / chemistry*
Regression Analysis
Solvents / chemistry*
Reg. No./Substance:
0/Azo Compounds; 0/Pyridines; 0/Solutions; 0/Solvents; 110-86-1/pyridine

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