calix(4)arene and triethylamine

calix(4)arene has been researched along with triethylamine* in 1 studies

Other Studies

1 other study(ies) available for calix(4)arene and triethylamine

Article	Year
Selective complex formation of some chromogenic calix[4]arene derivatives detected by Fourier transform infrared spectroscopy 1. Solution experiments. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2003, Jan-01, Volume: 59, Issue:1 A calix[4]arene derivative containing ethoxycarbonylmethoxy groups in the coordination sphere and an iminopyridinium indicator group was studied by FT-IR spectroscopy in acetonitrile solution. The characteristic changes of v(C=O) stretching vibration offered an opportunity for the improvement on selectivity of the ion recognition process of this ligand. The shift of the carbonyl stretching vibration band depended on complex formation as well as on the equilibrium constants of complex formation. In the case of sodium complex, a well-defined isobestic point was detected in the v(C=O) region while altering the sodium concentration. The affinity of thallium(III) to form complex with calixarene 1 was found comparable with those of lithium, sodium or calcium. The complex was found to be an M2L type supramolecule, whereas one molecule of triethylamine was necessary for the formation of each complex. Topics: Acetonitriles; Calcium; Calixarenes; Ethylamines; Ions; Lithium; Models, Chemical; Phenols; Sodium; Spectrophotometry; Spectroscopy, Fourier Transform Infrared; Thallium; Time Factors	2003

Article

Year

Selective complex formation of some chromogenic calix[4]arene derivatives detected by Fourier transform infrared spectroscopy 1. Solution experiments.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2003, Jan-01, Volume: 59, Issue:1

A calix[4]arene derivative containing ethoxycarbonylmethoxy groups in the coordination sphere and an iminopyridinium indicator group was studied by FT-IR spectroscopy in acetonitrile solution. The characteristic changes of v(C=O) stretching vibration offered an opportunity for the improvement on selectivity of the ion recognition process of this ligand. The shift of the carbonyl stretching vibration band depended on complex formation as well as on the equilibrium constants of complex formation. In the case of sodium complex, a well-defined isobestic point was detected in the v(C=O) region while altering the sodium concentration. The affinity of thallium(III) to form complex with calixarene 1 was found comparable with those of lithium, sodium or calcium. The complex was found to be an M2L type supramolecule, whereas one molecule of triethylamine was necessary for the formation of each complex.

Topics: Acetonitriles; Calcium; Calixarenes; Ethylamines; Ions; Lithium; Models, Chemical; Phenols; Sodium; Spectrophotometry; Spectroscopy, Fourier Transform Infrared; Thallium; Time Factors

2003