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Title: | Fluorescence depolarization from 2,5,8,11-tetra-t-butylperylene globally analyzed upon excitation in S-1 and S-n | Authors: | DE BACKER, Steve NEGRI, MR DE FEYTER, S DUTT, GB AMELOOT, Marcel DE SCHRYVER, FC MULLEN, K HOLTRUP, F |
Issue Date: | 1995 | Publisher: | ELSEVIER SCIENCE BV | Source: | CHEMICAL PHYSICS LETTERS, 233(5-6). p. 538-544 | Abstract: | The rotational dynamics of perylene and tetra-tertiary butylperylene are investigated by means of time-resolved fluorescence anisotropy experiments. In the global analysis of the polarised fluorescence decay traces, the preexponential factors in the anisotropy decay are linked over a series of n-alcohols while the rotational correlation times are linked over two excitation wavelengths. This approach allows for a high model discrimination power. The anisotropy decay of perylene could be analysed using a biexponential decay law with a fast in-plane and a slower out-of-plane rotation. By substituting perylene symmetrically by four tertiary butyl groups the two rotational correlation times become equal, resulting in a monoexponential anisotropy decay. | Notes: | LIMBURGS UNIV CENTRUM,B-3590 DIEPENBEEK,BELGIUM. MAX PLANCK INST POLYMER RES,W-6500 MAINZ,GERMANY.DEBACKER, S, KATHOLIEKE UNIV LEUVEN,DEPT CHEM,CELESTIJNENLAAN 200F,B-3001 HEVERLEE,BELGIUM. | Document URI: | http://hdl.handle.net/1942/3539 | DOI: | 10.1016/0009-2614(94)01447-4 | ISI #: | A1995QJ07100008 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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