کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1408940 1501775 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and mesomorphism of new chiral imines and copper(II) complexes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis and mesomorphism of new chiral imines and copper(II) complexes
چکیده انگلیسی

The synthesis, characterization and mesomorphic properties of a series of N-(2-hydroxy-4-n-alkyloxybenzylidene) 4′-amino-2-methylbutylcinnamate and their copper(II) complexes are reported. The imines exhibited smectic A (SmA) and chiral smectic C (SmC*) phases while their copper(II) complexes displayed SmA–SmC phase variant. The compounds have been characterized by elemental analysis and spectroscopic studies. The phase transition temperatures were detected by differential scanning calorimetry (DSC) analysis and the phases are confirmed by polarizing optical microscopy (POM). The chiral phase (SmC*) of the ligand disappeared on complexation. The unwinding of the helical superstructure of SmC* phase under the influence of electric field and the observed optical textures of SmC* phase are also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1039, 8 May 2013, Pages 219–226
نویسندگان
, , , , ,