测定拉伸聚合物中四丁基芘分子的跃迁偶极子方向。
Determination of the directions of the transition dipoles in tetrabutylperylene in stretched polymers.
机构信息
Debye Institute and Department of Molecular Biophysics, Buys Ballot Laboratory, University of Utrecht, P.O. Box 80 000, 3508 TA, Utrecht, The Netherlands.
出版信息
J Fluoresc. 1994 Mar;4(1):83-6. doi: 10.1007/BF01876661.
The directions of the transition dipole moments of 2,5,8,11,-tetra-butylperylene were determined from angle-resolved fluorescence depolarization experiments on molecules embedded in a stretched anhydrous nitrocellulose matrix. The absorption transition moments lies almost parallel to the elongated axis of the molecule, but the emission transition moment makes an angle of 20° with the axis. The orientational distribution of the molecules in the polymer indicates significant deviations from a circular form.
从嵌入拉伸无水硝酸纤维素基质中的分子的角度分辨荧光各向异性实验确定了 2,5,8,11,-四丁基苝的跃迁偶极矩的方向。吸收跃迁矩几乎与分子的伸长轴平行，但发射跃迁矩与轴成 20°角。聚合物中分子的取向分布表明其明显偏离圆形。
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