LOCAL COORDINATION AND CONFORMATION IN POLYETHER ELECTROLYTES - GEOMETRIES OF M-TRIGLYME COMPLEXES (M=LI, NA, K, MG AND CA) FROM AB-INITIO MOLECULAR-ORBITAL CALCULATIONS
P. Johansson et al., LOCAL COORDINATION AND CONFORMATION IN POLYETHER ELECTROLYTES - GEOMETRIES OF M-TRIGLYME COMPLEXES (M=LI, NA, K, MG AND CA) FROM AB-INITIO MOLECULAR-ORBITAL CALCULATIONS, Solid state ionics, 86-8, 1996, pp. 297-302
We have performed ab-initio calculations on 1:1 complexes of triglyme
(triethylene glycol dimethyl ether) with different meter ions. Several
stable tetradentate complexes have been found for each cation. The en
ergy difference between the least stable and the most stable conformat
ions ranges from 18 kJ/mole for the Na+ complex to 9 kJ/mole for the M
g2+ complex. The considerable number of complexes obtained reflects th
e great flexibility of the oligomer chain.