Hydrophobic interaction effects on the kinetics of ligand substitution in binary aqueous mixtures at pentacyano(piperidine)ferrate(II) ion

1983 ◽  
Vol 12 (2) ◽  
pp. 115-122 ◽  
Author(s):  
Julio A. Salas ◽  
Miguel Katz ◽  
Nestor E. Katz
Keyword(s):  
Hydrophobic Interaction ◽  
Interaction Effects ◽  
Ligand Substitution ◽  
Aqueous Mixtures ◽  
Kinetics Of

Ligand substitution kinetics of Mo(CO)(RC.tplbond.CR')(S2CNMe2)2 complexes

1983 ◽  
Vol 2 (7) ◽  
pp. 834-840 ◽  
Author(s):  
Richard S. Herrick ◽  
D. Mark Leazer ◽  
Joseph L. Templeton
Keyword(s):  
Ligand Substitution ◽  
Kinetics Of

Freeze Drying Kinetics of Sucrose-NaCl-Protein Aqueous Mixtures

1998 ◽  
Vol 51 (3) ◽  
pp. 905-911 ◽  
Author(s):  
J. M. Saiter ◽  
N. Delahaye ◽  
A. Bardat ◽  
E. Chatenet
Keyword(s):  
Freeze Drying ◽  
Drying Kinetics ◽  
Aqueous Mixtures ◽  
Kinetics Of

Chelating agents in high temperature aqueous chemistry. 1. The kinetics of the thermal decomposition of aqueous nitrilotriacetate (NTA), iminodiacetate (IDA), and N-methyliminodiacetate (MIDA)

1977 ◽  
Vol 55 (10) ◽  
pp. 1762-1769 ◽  
Author(s):  
Meindert Booy ◽  
Thomas Wilson Swaddle
Keyword(s):  
Chelating Agents ◽  
Nuclear Reactors ◽  
Rate Coefficients ◽  
Aqueous Mixtures ◽  
Hydrothermal Conditions ◽  
Good Thermal Stability ◽  
First Order ◽  
First Order Kinetics ◽  
Kinetics Of ◽  
Thermal Stability Of

Aqueous H3NTA, H2MIDA, H2IDA, and their anions decompose under hydrothermal conditions (400–580 K) according to first order kinetics by successive decarboxylations, oxidation by O2 being unimportant except at the highest temperatures. In the presence of added H+, the species H4NTA+ and, to a lesser extent, H3MIDA+ (but not H3IDA+), provide significant decomposition pathways through elimination of a —CH2COO— group (deacetylation). For HnNTA(3−n)−, first order rate coefficients kn for decomposition are k0 = 4.5 × 10−7, k1 ∼ 1 × 10−6, k2 ∼ 7 × 10−5, k3 = 2.1 × 10−4, and k4 = 1.0 × 10−2 s1, at 503 K and ionic strength 2.0 m, the spread in rates being due to differences in ΔS* rather than ΔH*. H2MIDA and H2IDA are comparable in reactivity to H3NTA, while their anions are much less reactive than the NTA species of the same charge. The good thermal stability of aqueous NTA commends it as a reagent for boiler servicing and for decontamination of water-cooled nuclear reactors. A potentiometric method for the estimation of mono-, di-, and tribasic aminoacids in aqueous mixtures of these is described.

Influence of Aqueous Mixtures of Amides on the Kinetics of Electro Reduction of Ni(II) and Co(II) at d. m. e.

1975 ◽  
Vol 30 (11-12) ◽  
pp. 859-861 ◽  
Author(s):  
S. K. Jha ◽  
S. Jha ◽  
S. N. and
Keyword(s):  
Rate Constants ◽  
Electrode Potential ◽  
Gradual Decrease ◽  
Electrode Kinetics ◽  
Aqueous Mixtures ◽  
Aqueous Mixture ◽  
Kinetics Of ◽  
Remarkable Agreement ◽  
Amide Content

Electroreduction of Ni(II) and Co(II) has been carried out in aqueous mixtures of formamide, acetamide and urea. Electrode kinetics in terms of theories of irreversible waves have been studied. After calculating the rate constants by DELAHAY1 and Kou-TECKY2 treatments separately their variation with electrode potential has been used to calculate the product ‘ana’. The rate constants and ‘ana’ calculated from two different approaches show remarkable agreement. `ana’ records a gradual decrease with increasing amide content of the aqueous mixture.

Steric and conformational effects on the kinetics of ligand substitution in bis(salicylaldiminato)nickel(II) complexes

1982 ◽  
Vol 21 (2) ◽  
pp. 606-612 ◽  
Author(s):  
Manfred. Schumann ◽  
Angela. Von Holtum ◽  
Klaus J. Wannowius ◽  
Horst. Elias
Keyword(s):  
Ligand Substitution ◽  
Conformational Effects ◽  
Kinetics Of
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