Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
177355 | Dyes and Pigments | 2009 | 6 Pages |
Abstract
Tetrahydroquinoxaline based squaraine dyes synthesized by the condensation reaction between squaric acid and different tetrahydroquinoxaline derivatives are described. The squaraines gave a strong intense peak at 700 nm and were found to exhibit good molar extinction coefficient (>105 M−1 cm−1). Metal binding studies were carried out with different metal ions and it was found that it was selective in the case of copper metal. Using Job's plot it was ascertained that the squaraines bind to the copper metal in the ratio of 2:1.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Yogesh Chandrasekaran, Gitish K. Dutta, Raja Bhaskar Kanth, Satish Patil,