Inner and outer-sphere reductive elimination during decomposition of the platinum(IV) ?-ammonioethyl complex in aqueous solutions

1994 ◽  
Vol 43 (3) ◽  
pp. 478-484
Author(s):  
V. V. Zamashchikov ◽  
S. A. Mitchenko ◽  
S. M. Slinkin
Keyword(s):  
Aqueous Solutions ◽  
Outer Sphere ◽  
Reductive Elimination

Outer-sphere and inner-sphere processes in reductive elimination. Direct and indirect electrochemical reduction of vicinal dibromoalkanes

1990 ◽  
Vol 112 (17) ◽  
pp. 6162-6177 ◽  
Author(s):  
Doris Lexa ◽  
Jean Michel Saveant ◽  
Hans J. Schaefer ◽  
Su Khac Binh ◽  
Birgit Vering ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Outer Sphere ◽  
Reductive Elimination ◽  
Inner Sphere

Investigation of Cu(II) adsorption from aqueous solutions by NKF-6 zeolite

2011 ◽  
Vol 63 (3) ◽  
pp. 395-402 ◽  
Author(s):  
H. Zhang ◽  
D. Zhao ◽  
L. Chen ◽  
X. J. Yu
Keyword(s):  
Aqueous Solutions ◽  
Outer Sphere ◽  
Low Ph ◽  
Ambient Conditions ◽  
Temperature Dependent ◽  
Ph Values ◽  
Batch Technique ◽  
Negative Effect ◽  
High Level ◽  
Positive Effect

Adsorption of Cu(II) from aqueous solutions using NKF-6 zeolite was investigated by batch technique under ambient conditions. The adsorption was investigated as a function of pH, ionic strength, fulvic acid (FA), foreign ions and temperature. The results indicated that the adsorption of Cu(II) on NKF-6 zeolite gradually increases from 0 to 90% with increasing pH at pH<6.5, and maintains high level at pH>6.5. Outer-sphere complexation or ion exchange may be the main adsorption mechanism of Cu(II) to NKF-6 zeolite at low pH values, whereas the adsorption of Cu(II) at pH>6.5 is mainly dominated by inner-sphere complexation or precipitation. A positive effect of FA on Cu(II) adsorption onto NKF-6 zeolite is observed at low pH values, while a negative effect of FA is observed at high pH values. The thermodynamic parameters (i.e., ΔH0, ΔS0 and ΔG0) for the adsorption of Cu(II) were determined from the temperature dependent isotherms at 20, 40 and 60°C, respectively, and the results indicated that the adsorption reaction is favoured at low temperature. The results suggested that the adsorption process of Cu(II) on NKF-6 zeolite is spontaneous and exothermic.

The outer-sphere association of p-sulfonatothiacalix[4]arene with some Co(III) complexes: the effect on their redox activity in aqueous solutions

2007 ◽  
Vol 59 (1-2) ◽  
pp. 25-32 ◽  
Author(s):  
A. R. Mustafina ◽  
V. G. Shtyrlin ◽  
L. Ya Zakharova ◽  
V. V. Skripacheva ◽  
R. R. Zairov ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Outer Sphere ◽  
Redox Activity

scholarly journals Structure of outer sphere complexesM'CuNta(H2O) in crystals and aqueous solutions

1993 ◽  
Vol 49 (s1) ◽  
pp. c222-c222
Author(s):  
A. K. Liashchenko ◽  
O. P. Gladkikh ◽  
A. F. Borina ◽  
N. D. Mitrofanova
Keyword(s):  
Aqueous Solutions ◽  
Outer Sphere
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