Cesium-133 NMR study of the kinetics of cesium ion complexation by 1,10-diaza-18-crown-6 and cryptand C221 in some nonaqueous solutions

1987 ◽  
Vol 91 (2) ◽  
pp. 447-451 ◽  
Author(s):  
Mojtaba. Shamsipur ◽  
Alexander I. Popov
Keyword(s):  
Nonaqueous Solutions ◽  
Cesium Ion ◽  
Nmr Study ◽  
Ion Complexation ◽  
Kinetics Of

Solubilization equilibria of water in nonaqueous solutions of block ionomer reverse micelles: an NMR study

1992 ◽  
Vol 25 (4) ◽  
pp. 1300-1303 ◽  
Author(s):  
Zhisheng Gao ◽  
Alain Desjardins ◽  
Adi Eisenberg
Keyword(s):  
Reverse Micelles ◽  
Nonaqueous Solutions ◽  
Nmr Study ◽  
Block Ionomer

Kinetics of the hydration reactions in the cement paste with mechanochemically modified cement 29Si magic-angle-spinning NMR study

1999 ◽  
Vol 29 (10) ◽  
pp. 1575-1581 ◽  
Author(s):  
Karin Johansson ◽  
Cecilia Larsson ◽  
Oleg N. Antzutkin ◽  
Willis Forsling ◽  
Hanumantha Rao Kota ◽  
...  
Keyword(s):  
Cement Paste ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Nmr Study ◽  
Angle Spinning ◽  
Kinetics Of

Kinetics of electroreduction of Zn2+ at mercury in nonaqueous solutions

1994 ◽  
Vol 72 (7) ◽  
pp. 1691-1698 ◽  
Author(s):  
Mariléa Manzini ◽  
Andrzej Lasia
Keyword(s):  
Cyclic Voltammetry ◽  
Charge Transfer ◽  
Supporting Electrolyte ◽  
Donor Number ◽  
Nonaqueous Solutions ◽  
Dc Polarography ◽  
One Step ◽  
A Charge ◽  
Tetraethylammonium Perchlorate ◽  
Kinetics Of

The electroreduction of Zn2+ was studied in propylene carbonate (PC), acetonitrile (ACN), and hexamethylphosphoramide (HMPA) on mercury at various concentrations of tetraethylammonium perchlorate as a supporting electrolyte using dc polarography, cyclic voltammetry, chronoamperometry, and ac polarography. It was found that in PC and ACN the electroreduction process proceeds in one step. In HMPA, however, the electroreduction proceeds through a CEE mechanism in which a chemical reaction is followed by a charge transfer in two steps. The heterogeneous rate constants, corrected for the double layer effects, decrease with increase in the solvent donor number. The electroreduction process proceeds through the cation transfer mechanism.

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