Reproducible Preparation of Polymorphs of the Thiacalix[4]Arene Derivative by Saturating a Solid Host with Solvent Vapors

An efficient method to prepare polymorphs (including the unknown previously) is proposed for tert -butylthiacalix[4]arene tetrasubstituted with ethylcarboxymethyloxy groups at the lower rim by saturating this host and its inclusion compounds by solvent vapors. By means of this method and by heating...

Full description

Saved in:
Bibliographic Details
Published in:Journal of structural chemistry 2023-11, Vol.64 (11), p.2040-2050
Main Authors: Gabdulkhaev, M. N., Ziganshin, M. A., Gubaidullin, A. T., Gorbachuk, V. V.
Format: Article
Language:English
Subjects:
Atomic
Atomic/Molecular Structure and Spectra
Calixarenes
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Molecular
Optical and Plasma Physics
Physical Chemistry
Polymorphism
Single crystals
Solid State Physics
Solvents
Thermogravimetry
X ray powder diffraction
X-ray diffraction
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An efficient method to prepare polymorphs (including the unknown previously) is proposed for tert -butylthiacalix[4]arene tetrasubstituted with ethylcarboxymethyloxy groups at the lower rim by saturating this host and its inclusion compounds by solvent vapors. By means of this method and by heating this calixarene capable of the enantiotropic transition, it is shown that mutual transformations of polymorphs into each other can be controlled. Polymorphs and intermediate saturation products are characterized by a combination of thermogravimetry, differential scanning calorimetry, and powder X-ray diffraction. To reveal factors promoting polymorphism, the structures of two inclusion compounds and one of the polymorphs of calixarene studied are determined by single crystal X-ray diffraction.
ISSN:0022-4766
1573-8779
DOI:10.1134/S0022476623110021