Document Detail


Charge transfer complexes of some anilides with nitrobenzene derivatives as pi-electron acceptors.
MedLine Citation:
PMID:  12185756     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The charge transfer complexes formed between some anilides and pi-electron acceptors [picric acid, 2,4-dinitrophenol, 3,5-dinitrobenzoic aicd, 3,5-dinitrosalicylic acid and m-dinitrobenzene] are synthesized and characterized. Spectral characteristics and stability of the complexes are investigated and discussed in terms of donor molecular structure, pi-acceptor electron affinity, and solvent polarity. It is deduced that the complexes are mainly of the n-pi* and pi-pi* type where the ground state wave function can be described primarily by the non-bonding structure. The optimum conditions favouring the formation of the coloured complexes are extensively studied for the microdetermina-tion of anilides derivatives in pharmaceutical drugs using nitrobenzene as acceptor; the molecular structure was found to be 1:1 (D:A). Beer's law is obeyed up to 23.0, 18.60 and 16.0 micrograms ml-1 for p(OH), p-(OCH3), and p-N(CH3)2, respectively.
Authors:
El-Sayed H el-Mossalamy; Alaa S Amin; Ahmed A Khalil
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annali di chimica     Volume:  92     ISSN:  0003-4592     ISO Abbreviation:  Ann Chim     Publication Date:    2002 Jul-Aug
Date Detail:
Created Date:  2002-08-20     Completed Date:  2003-01-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7610375     Medline TA:  Ann Chim     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  749-58     Citation Subset:  IM    
Affiliation:
Chemistry Department, Faculty of Science, Benha University, Benha, Egypt. el-mossalamy@Hotmail.com
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MeSH Terms
Descriptor/Qualifier:
Anilides / chemistry*
Electrons
Models, Chemical*
Molecular Structure
Nitrobenzenes / chemistry*
Chemical
Reg. No./Substance:
0/Anilides; 0/Nitrobenzenes

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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