Ravi Kishore, V. V. N. ; Periasamy, N. ; Bhattacharjee, B. ; Das, Ranjan ; Paulose, P. L. ; Narasimhan, K. L. (2003) On the stability and optical spectra of Alq negative ion in solution and thin films Chemical Physics Letters, 367 (5-6). 657-661 . ISSN 0009-2614
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00092...
Related URL: http://dx.doi.org/10.1016/S0009-2614(02)01729-3
Abstract
In this Letter, we report on the optical and magnetic properties of the negative ion of Aluminium tris(8-hydroxyquinolate) (Alq) in solution and thin film. The negative ion is stable in solution and as a thin film only in vacuum. The negative ion is non-luminescent and unstable in ambient air/oxygen. The absorption spectrum of the negative ion consists of an intense band at 336 nm with a molar extinction coefficient of 1.42×104M-1 cm-1. The negative ion is paramagnetic with an effective paramagnetic moment of 0.9 μB per Alq- molecule. However, there is no detectable ESR signal even at 130 K.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 37987 |
| Deposited On: | 05 Jul 2011 11:22 |
| Last Modified: | 05 Jul 2011 11:22 |
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