ISSN:
1434-193X
Keywords:
X-ray crystal structure
;
Calix crown
;
Molecular dynamics
;
Cesium selectivity
;
Alkali metal cation complex
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
We present X-ray structures of complexes of KClO4·H2O and CsPic·H2O with a new calix[4]arene bearing a dibenzocrown-6 ether bridge. Alkali metal cation complexes with this macrocycle have been studied by molecular dynamics simulations in vacuo, taking account of the counterion, and in an explicit water phase, in order to compare the computed structures to those determined by X-ray crystallography. Two different sets of atomic charges were used in order to evaluate the influence of the electrostatic representation on the computed structures. The results obtained show that MNDO scaled charges give simulation results in better agreement with the available experimental data than MNDO/ESP.
Type of Medium:
Electronic Resource
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