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Ion-chain Local Interactions in Polyether–salt Complexes by L.D. Carlos; A.L.L. Videira is a Engineering article available to read on EtoBox.
What is Ion-chain Local Interactions in Polyether–salt Complexes about?
AbstractÐRepresenting polyether±salt systems by chains of interacting coordination shells, each of which de®ned by a cation and by its nearest ligands (ether±oxygens and eventually anions), the interaction potential between a given coordination shell and all the others closest to itÐthe inter-shells potentialÐis derived in terms of two-electron polarization eects. Values are presented for crystalline monovalent-based poly(ethylene oxide), PEO , complexes, while for non-crystalline divalent electrolytes only an upper limit is estimated. For the eutectic concentration of PEO/Eu 3+ electrolytes, the inter-shells energy e is also evaluated by relating the empirical value of the nearest-ligands local-®eld potential with the variation of Eu 3+ concentration. The value obtained by this procedure was e = 554.2 cm À1 , while by the two-electron polarization potential they were e = 520.3 cm À1 , for 10 nearest oxygens and e = 572.4 cm À1 , for 11 oxygens, for a mean radius of the ®rst coordination shell R=2.4 A Ê and a minimum distance between nearest shells R 0 =5.3 A Ê . This last method also permits the determination of the number of Eu 3+ -nearest oxygens.
Who reads Ion-chain Local Interactions in Polyether–salt Complexes?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- L.D. Carlos; A.L.L. Videira
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0013-4686)
- Published
- 1998
- Language
- EN
- Field
- Engineering (Physical Sciences)