Spectroscopic and thermal properties of newly mixed azocalix[4]arene ester derivatives
[ X ]
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier B.V.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The mono-, di-, tri-, and tetra-acryloyl esters of p-chloroazocalix[4]arene which include the first examples of mixed azo ester dyes were synthesized by reacting acryloyl chloride with sodium salts of p-chloroazocalix[4]arene in tetrahydrofuran with inert atmosphere. Diazonium salt of p-chloroaniline was synthesized by using n-amlynitrite and coupled with calix[4]arene in anhydrous condition. This is the diazo coupling reactions used for the first time for synthesized azocalix[4]arene. The characterization of synthesized compounds by spectroscopic methods revealed that azocalix[4]arenes adopt a cone conformation if they contain at least one free phenolic group. The structures of these compounds have been characterized by infrared (IR), ultraviolet-visible (UV-VIS), proton nuclear magnetic resonance (1H NMR) and carbon nuclear magnetic resonance (13C NMR). Differential thermal analysis (DTA), thermogravimetry (TG) and derivative thermogravimetry (DTG) were used to determine the thermal behaviors of the compounds. © 2014 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Acryloyl Chloride, Acryloyl Ester of Azocalix[4]arene, Azocalix[4]arene, Azocalix[4]arene-Ester, Calix[4]arene, Thermal Analysis
Kaynak
Dyes and Pigments
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
107
Sayı
Künye
Özkınalı, S. (2014). Spectroscopic and thermal properties of newly mixed azocalix [4] arene ester derivatives. Dyes and Pigments, 107, 81-89.
