caa a22 4500 445388315 CHVBK 20180317143038.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s11144-011-0332-1 doi (NATIONALLICENCE)springer-10.1007/s11144-011-0332-1 Kinetic studies on sodium dodecyl sulfate micelle inhibited reactions of triphenylmethyl carbocations with cyanide ion [Elektronische Daten] [Th. Raghumani Singh, M. Niraj Luwang, S. Srivastava] The kinetics of the decolorization reactions of triphenylmethane dyes (BG, MG and PRH) with the cyanide ion (nucleophile) were studied in the presence of anionic micelles of sodium dodecyl sulfate (SDS). The reactions follow pseudo-first order kinetics. The rate constant depends on surfactant concentration. SDS micelles inhibit the overall rate of the reaction between the dye carbocation with the nucleophile. Quantitative analysis of the micellar data obtained has been done by applying a positive cooperativity model of enzyme catalysis. For all the dyes under study, the value of n (index of cooperativity) has been found to be greater than one. The inhibitory effect has been explained in terms of hydrophobic and electrostatic interactions of various species present in the reaction systems. Akadémiai Kiadó, Budapest, Hungary, 2011 Cyanide nationallicence Micelles nationallicence SDS nationallicence Dyes nationallicence Kinetics nationallicence Raghumani Singh Th Department of Chemistry, D. M. College of Science, 795001, Imphal, India aut Niraj Luwang M. Department of Chemistry, Manipur University, 795003, Imphal, India aut Srivastava S. Department of Chemistry, Manipur University, 795003, Imphal, India aut Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 104/1(2011-10-01), 17-26 1878-5190 104:1<17 2011 104 11144 https://doi.org/10.1007/s11144-011-0332-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11144-011-0332-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Raghumani Singh Th Department of Chemistry, D. M. College of Science, 795001, Imphal, India aut NATIONALLICENCE 700 1- Niraj Luwang M. Department of Chemistry, Manipur University, 795003, Imphal, India aut NATIONALLICENCE 700 1- Srivastava S. Department of Chemistry, Manipur University, 795003, Imphal, India aut NATIONALLICENCE 773 0- Reaction Kinetics, Mechanisms and Catalysis Springer Netherlands 104/1(2011-10-01), 17-26 1878-5190 104:1<17 2011 104 11144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer