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Document Details
Document Type
:
Article In Journal
Document Title
:
Synthesis and absorption spectral properties of bis-methine dyes exemplified by 2,5-bis-arylidene-1-dicyanomethylene-cyclopentane
Synthesis and absorption spectral properties of bis-methine dyes exemplified by 2,5-bis-arylidene-1-dicyanomethylene-cyclopentane
Document Language
:
Arabic
Abstract
:
A range of methine dyes has been synthesized by condensation of highly electronegative active methylene compound dicyanomethylenecyclopentane derived from cyclopentanone with the formyl group of substituted benzaldehydes. The electronic absorption spectroscopic properties of the dyes were investigated. In general, substituents on the aromatic aldehyde moiety have a significant effect on the visible absorption maxima of the dyes; increasing the solvent polarity also had a pronounced effect on the absorption maxima.
Journal Name
:
JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN
Volume
:
26
Issue Number
:
1
Publishing Year
:
2004 AH
Added Date
:
Saturday, June 14, 2008
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
أ.د.عبد الله بن محمـد أحمـد عسيــــري
Asiri AM
Researcher
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