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Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.50B [2011] >
IJC-B Vol.50B(05) [May 2011] >
| Title: | Hybrid macrocyclic receptors based on lower rim functionalised thiacalix[4]arene and amino acids: Synthesis, structure and binding properties towards metal ions |
| Authors: | Sreeja, Thulasi
Ganga, Viswanathan Bhagavathy
Praveen, Lakshmananpillai
Varma, Ramavarma Luxmi |
| Issue Date: | May-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Peptidothiacalixarene derivatives 4a-d and 7a-d have been synthesized in excellent yields by the reaction of
methyl esters of glycine, l-alanine
and d- and l-phenyl alanine with lower rim substituted 1,3-diacid
chloride and tetraacid chloride derivatives of thiacalixarene. The
conformational and hydrogen bonding properties of these conjugates have been
investigated by means of 1H NMR in the solution state and by X-ray
crystallography in the solid state. Complexation studies performed by UV-Vis
and 1H NMR spectroscopy in acetonitrile solution show that the
1,3-disubstituted hybrids selectively bind Hg2+ ions and the
orientation of the substituent on the chiral carbon is found to have a
significant effect on the binding. |
| Page(s): | 704-714 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Source: | IJC-B Vol.50B(05) [May 2011]
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