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Spectrophotometric determination of copper complexation properties of new amphiphilic dithiocarbamates

โœ Scribed by I. Rogachev; V. Gusis; A. Gusis; J.L. Cortina; J. Gressel; A. Warshawsky

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
241 KB
Volume
42
Category
Article
ISSN
1381-5148

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โœฆ Synopsis

Amphiphilic dithiocarbamate chelators were synthesized to afford the ability to traverse biological membranes. Comparison of copper (II) stability constants for dithiocarbamates was accomplished by a competition reaction between copper oxinates and copper dithiocarbamates using UV/ VIS spectrophotometry. The stability constants of mixed copperhydroxyquinoline-dithiocarbamate complexes were calculated by a continuous variation and subtractive spectrophotometric methods. Using these techniques, the competitive stability constants log K were determined as 1.53, 1.95 and 2.03 for c amphiphilic dithiocarbamates and 3.52 for dibutyldithiocarbamate.

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