Journal ArticleDOI
Novel deep-cavity calix[4]arene derivatives with large s -triazine conjugate systems: synthesis and complexation for dyes
TLDR
In this article, two deep-cavity calix[4]arenes 3 and 4 with large s-triazine π-conjugate systems were designed and synthesized in high yields by reacting calix with mono phenyl-substituted cyanuric chloride or further substitution with aniline.Abstract:
Two novel deep-cavity calix[4]arenes 3 and 4 with large s-triazine π-conjugate systems were designed and synthesized in high yields by reacting calix[4]arene with mono phenyl-substituted cyanuric chloride or further substitution with aniline. The liquid–liquid extraction experiment showed that they possessed excellent extraction abilities towards one cationic and three anionic dyes (Orange I, methylene blue, neutral red, brilliant green). The highest extraction percentage of compound 4 was 88.8 % for brilliant green. The complexation UV–Vis spectra of compounds 3 and 4 with four dyes indicated the existences of complexation action between hosts and guests with 1:1 ratio of complexation in DMSO solution. The association constants suggested that the larger π-conjugate system of compound 4 possessed the stronger complexation abilities than that of compound 3. The association constant of compound 4 with BG was as high as 8.1 × 106 M−1.read more
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Cyclodextrin-grafted thiacalix [4]arene netty polymer based on the click chemistry: preparation and efficient adsorption for organic dyes
TL;DR: In this article, the first example of cyclodextrin-grafted thiacalix [4]arene netty polymer 10 was designed and prepared by the click chemistry in yield of 76%.
Journal ArticleDOI
Selective and efficient extraction of cationic dyes from industrial effluents through polymer inclusion membrane
Muhammad Ali Minhas,Asma Rauf,Saba Rauf,Fouzia T. Minhas,Najma Memon,Abdul Jabbar,Abdul Jabbar,Muhammad Iqbal Bhanger,Muhammad Imran Malik +8 more
TL;DR: In this article, an ester derivative of calix[4]arene (EDC) impregnated polymer inclusion membrane (PIM) was used for the transfer of cationic dyes between two aqueous phases.
Journal ArticleDOI
Novel effective dye sorbents: synthesis and properties of 1,2,3-triazole-modified thiacalix[4]arene polymers based on click chemistry
TL;DR: In this paper, three 1,2,3-triazole-modified thiacalix[4]arene polymers were conveniently prepared in 4+2 condensation mode in ideal yields.
Journal ArticleDOI
Synthesis and Dyes Adsorption Properties of Calix[4]crown-grafted Chitosan Chelating Polymer
TL;DR: In this article, a calixcrown-grafted chitosan chelating polymer(3) was confirmed by elemental analysis, infrared (IR) spectrometry and X-ray diffraction (XRD) analysis.
Journal ArticleDOI
Calix[4]arene-mediated uphill transport of methyl red through bulk liquid membrane: kinetics of operational variables
TL;DR: In this paper, the successful transport of dyes specially methyl red (MR) using 5,11,17,23-tetra-tert-butyl-25,27-dihydroxy-26,28-dimethoxycalix[4]arene (1) derivative as a carrier in bulk liquid membrane (BLM) was demonstrated.
References
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Book
Comprehensive Supramolecular Chemistry
Jerry L. Atwood,Jean-Marie Lehn +1 more
TL;DR: The aim of this book is to provide a history of Supramolecular Chemistry from its inception in the 1920s to the present day, with a focus on the period between 1950 and 1983.
Journal ArticleDOI
Synthesis and applications of adsorbents containing cyclodextrins
Grégorio Crini,M. Morcellet +1 more
TL;DR: A review of the use of adsorbents containing cyclodextrins in the field of separation techniques can be found in this paper, where the main goal is to provide a summary of the information concerning the synthesis of materials containing CDs and to give a general overview of the different possible applications of CDs as sorbents.
Journal ArticleDOI
Ion and Molecular Recognition by Lower Rim 1,3-Di-conjugates of Calix[4]arene as Receptors
Roymon Joseph,Chebrolu P. Rao +1 more
Journal ArticleDOI
Removal efficiency of a calix[4]arene-based polymer for water-soluble carcinogenic direct azo dyes and aromatic amines.
TL;DR: The sorption of azo dyes and aromatic amines by calix[4]arenes-based compounds indicates that amino groups play the major role for the formation of hydrogen bonds and electrostatic interactions.
Journal ArticleDOI
Fluoride-Selective Binding in a New Deep Cavity Calix[4]pyrrole: Experiment and Theory
Christopher J. Woods,Salvatore Camiolo,Mark E. Light,Simon J. Coles,Michael B. Hursthouse,Michael A. King,Philip A. Gale,Jonathan W. Essex +7 more
TL;DR: Structural evidence demonstrates that the adaptive umbrella WHAM protocol explores a wider conformational range than free energy perturbation and should therefore be the method of choice in binding free energy calculations, and its efficiency was found to be approximately two times more efficient.