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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Single Molecule Conductance and Junction Formation in Solution. Solvent Effect
 Lachmanová, Štěpánka ; Šebera, Jakub ; Gasior, Jindřich ; Dupeyre, G. ; Lainé, P. P. ; Mészáros, G. ; Hromadová, Magdaléna
The single molecule conductance of expanded pyridinium derivative terminated by pyridyl\nnitrogen as an anchoring group at both ends of the molecule in two different environments\nwas measured by scanning tunneling microscopy break junction technique (STM-BJ). The\nvalues obtained in commonly used 1,3,5-trimethylbenzene (TMB) significantly differ from\nthe values acquired in a mixture of TMB and ethanol. Markedly lower junction length and\nhigher conductance indicate strong influence of adsorption of the molecule to the substrate\nsurface in pure TMB compared to the TMB and ethanol mixture.
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Capillary electrophoretic study of solvent effects on complexation of dibenzo-18-crown-6 with potassium ions
 Konášová, Renáta ; Jaklová Dytrtová, Jana ; Kašička, Václav
Affinity capillary electrophoresis was applied to investigation of solvent effects on stability constant of dibenzo-18-crown-6 complex with potassium ion in mixed hydro-organic solvents at different water/methanol, water/ethanol and water/propan-2-ol ratios. The apparent stability constants of the complex were found to be strongly decreasing with increasing molar fraction of water in the mixed solvents.
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Affinity capillary electrophoresis applied for study of solvent effect on stability constant of dibenzo-18-crown-6 complex with potassium ion
 Konášová, Renáta ; Jaklová Dytrtová, Jana ; Kašička, Václav
Affinity capillary electrophoresis was used for investigation of solvent effect on stability constant of dibenzo-18-crown-6 complex with potassium ion in mixed hydro-organic solvents at different water/methanol and water/ethanol ratios. The stability constant of the complex was decreasing with increasing molar fraction of water in mixed solvents and almost independent of the organic solvent used.
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