Poly((N,N,N-trimethylammonio)ethyl acrylate chloride salt) (PCMA)−SDS Complex Formation in Dilute Aqueous Solution. Light Scattering and Time-Resolved Fluorescence Quenching Measurements

1996 ◽  
Vol 29 (4) ◽  
pp. 1195-1203 ◽  
Author(s):  
Johan Fundin ◽  
Wyn Brown ◽  
Martin Swanson Vethamuthu
Keyword(s):  
Aqueous Solution ◽  
Light Scattering ◽  
Complex Formation ◽  
Fluorescence Quenching ◽  
Ethyl Acrylate ◽  
Chloride Salt ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Dilute Aqueous Solution

Schiff base equilibria. II. Beryllium complexes of N-n-butylsalicylideneimine and the hydrolysis of the Be2+ ion

1965 ◽  
Vol 18 (5) ◽  
pp. 651 ◽  
Author(s):  
RW Green ◽  
PW Alexander
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Complex Formation ◽  
Distribution Coefficient ◽  
Dilute Aqueous Solution ◽  
The Stability ◽  
Ph Range ◽  
Hydrolysis Of ◽  
Beryllium Complexes ◽  
Equilibria In Aqueous Solution

The Schiff base, N-n-butylsalicylideneimine, extracts more than 99.8% beryllium into toluene from dilute aqueous solution. The distribution of beryllium has been studied in the pH range 5-13 and is discussed in terms of the several complex equilibria in aqueous solution. The stability constants of the complexes formed between beryllium and the Schiff base are log β1 11.1 and log β2 20.4, and the distribution coefficient of the bis complex is 550. Over most of the pH range, hydrolysis of the Be2+ ion competes with complex formation and provides a means of measuring the hydrolysis constants. They are for the reactions: Be(H2O)42+ ↔ 2H+ + Be(H2O)2(OH)2, log*β2 - 13.65; Be(H2O)42+ ↔ 3H+ + Be(H2O)(OH)3-, log*β3 -24.11.

Size, Hydration, and Shape of SDS/Heptane Micelles Investigated by Time-Resolved Fluorescence Quenching and Electron Spin Resonance

Langmuir ◽  
2001 ◽  
Vol 17 (22) ◽  
pp. 6765-6770 ◽  
Author(s):  
Radha Ranganathan ◽  
Miroslav Peric ◽  
Rosa Medina ◽  
Ulises Garcia ◽  
Barney L. Bales ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Fluorescence Quenching ◽  
Electron Spin ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Spin Resonance

Aggregation Numbers of Cationic Oligomeric Surfactants:  A Time-Resolved Fluorescence Quenching Study

Langmuir ◽  
2006 ◽  
Vol 22 (6) ◽  
pp. 2551-2557 ◽  
Author(s):  
Laurent Wattebled ◽  
André Laschewsky ◽  
Alain Moussa ◽  
Jean-Louis Habib-Jiwan
Keyword(s):  
Fluorescence Quenching ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Aggregation Numbers
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