Thermally induced reversible conformational changes in the host-guest adduct of meso-tetramethyltetrakis(ethyl)calix[4]pyrrole |
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| Authors: | Soumen Dey |
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| Affiliation: | Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, Uttar Pradesh, India |
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| Abstract: | The binding of methanol, ethanol, and N,N-dimethylformamide to meso-tetramethyltetrakis(ethyl)calix[4]pyrrole (1) was investigated in both solid and solution with the exhibition of multi-fashion hydrogen bonding as shown by X-ray crystallography. The thermodynamic stability of these host-guest inclusion complexes were determined by exploiting TGA and DTA. An unexpected conformational change in 1·2EtOH occurred by thermal induction. |
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| Keywords: | meso-Tetramethyltetrakis(ethyl)calix[4]pyrrole TGA DTA Powder XRD X-ray structure |
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