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Synthesis ,characterization and study of liquid crystalline behavior of new bent core mesogenes derived from isophthalic acid
Other Title(s)
تحضير و تشخيص ودراسة السلوك البلوري السائل لجزيئات جديدة منحنية المركز مشتقة من حامض الأيزوفثالك
Joint Authors
Karam, Nisrin Husayn
Abd, Fatimah Ahmad
al-Jazrawi, Jumbad Hurmuz Tuma Musa
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 29, Issue 1 (30 Apr. 2016), pp.150-165, 16 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2016-04-30
Country of Publication
Iraq
No. of Pages
16
Main Subjects
Topics
Abstract EN
Two series of bent core mesogen containing 1,2,4-traizole ring [X]a-e and [XI]a-e were synthesized by many steps starting from esterification of isophthalic acid with methanol to yield diester compound [I] which was converted to their acid hydrazide [II] and the acid hydrazide reacted with ammonium thiocyanate or phenyl isothiocyanate to yield compounds [III] and [IV] , respectively .
Then cyclization by 4% NaOH to yielded 1,2,4 traizole-3- thiol compounds [V] and [VI], respectively, afterword adding hydrazine hydrate to yield compounds [VII] and [VIII] .These compounds condensated with different substituted aldehyde to give new Schiff bases[X]a-e and [XI]a-e,respectively.
The synthesized compounds were characterized by melting points , FT-IR and 1H-NMR spectroscopy (some of them).The liquid crystalline properties were studied by hot stage polarizing microscopy and differential scanning calorimetry DSC for compound [X]b .
The compounds [X]b , [X]c and [X]d showed mesomorphism properties while the other compounds did not show any mesomorphic behavior.
American Psychological Association (APA)
Abd, Fatimah Ahmad& Karam, Nisrin Husayn& al-Jazrawi, Jumbad Hurmuz Tuma Musa. 2016. Synthesis ,characterization and study of liquid crystalline behavior of new bent core mesogenes derived from isophthalic acid. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 29, no. 1, pp.150-165.
https://search.emarefa.net/detail/BIM-692594
Modern Language Association (MLA)
Abd, Fatimah Ahmad…[et al.]. Synthesis ,characterization and study of liquid crystalline behavior of new bent core mesogenes derived from isophthalic acid. Ibn al-Haitham Journal for Pure and Applied Science Vol. 29, no. 1 (2016), pp.150-165.
https://search.emarefa.net/detail/BIM-692594
American Medical Association (AMA)
Abd, Fatimah Ahmad& Karam, Nisrin Husayn& al-Jazrawi, Jumbad Hurmuz Tuma Musa. Synthesis ,characterization and study of liquid crystalline behavior of new bent core mesogenes derived from isophthalic acid. Ibn al-Haitham Journal for Pure and Applied Science. 2016. Vol. 29, no. 1, pp.150-165.
https://search.emarefa.net/detail/BIM-692594
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 159-164
Record ID
BIM-692594