Room temperature phosphorescence decay of metal chelates in micellar media |
| |
| Authors: | Marta Elena Díaz García Maria Rosario Fernandez de la Campa Willie L. Hinze Alfredo Sanz-Medel |
| |
| Affiliation: | (1) Department of Analytical and Physical Chemistry, University of Oviedo, Oviedo, Spain;(2) Department of Chemistry, Wake Forest University, P.O. Box 7486, 27109 Winston-Salem, NC, USA |
| |
| Abstract: | The characteristics of the decay of the triplet state of metal chelates have been investigated in micellar media using room temperature phosphorescence (RTP) measurements of the Al-ferron (7-iodo-8-hydroxyquinoline-5-sulfonic acid) complex in cetyltrimethylammonium bromide (CTAB) micelles. Applications of such decay measurements include discrimination between metal complex species and evaluation of the stoichiometry of phosphorescent metal chelates. A thorough study of the effect of foreign ions (interferences) on the photochemical characteristics of RTP of the aluminum complex leads to a tentative classification of foreign cations. Results are compared with those for the Nb(V)-ferron phosphorescent complex in CTAB micelles and possible reaction mechanisms in the presence of micellar media are outlined in an effort to contribute to basic knowledge of micelle stabilized RTP of such inorganic ions. |
| |
| Keywords: | room-temperature phosphorescence micelles aluminum ferron metal chelate-triplet state |
| 本文献已被 SpringerLink 等数据库收录！ |
