Dipartimento di Scienze Biomediche e Biotecnologie, Università di Brescia, Brescia, Italy.
Chirality. 2012 Sep;24(9):725-30. doi: 10.1002/chir.22023. Epub 2012 Apr 16.
Ultraviolet (UV), Circular Dichroism (CD), Fluorescence, and Circularly Polarized Luminescence (CPL) spectra were recorded for mixed chloroform/methanol and chloroform/butanol solutions of regioregular poly[3-((S)-2-methylbutyl)-thiophene]. An evaluation of the chiral and nonchiral components in solution is proposed on the basis of the UV and CD spectra. The fluorescence and CPL spectra are observed in a wavelength range where some UV and CD activity still appears. For this reason, the observed CPL features are strongly influenced by CD. A general procedure for evaluating true CPL spectra is proposed, when absorption and emission coexist.
紫外（UV）、圆二色性（CD）、荧光和圆偏振发光（CPL）光谱记录了规整形聚[3-（（S）-2-甲基丁基）噻吩]在氯仿/甲醇和氯仿/丁醇混合溶液中的情况。根据 UV 和 CD 光谱，提出了在溶液中评估手性和非手性成分的方法。荧光和 CPL 光谱在一些 UV 和 CD 活性仍然存在的波长范围内观察到。因此，观察到的 CPL 特征受到 CD 的强烈影响。当吸收和发射共存时，提出了一种用于评估真实 CPL 光谱的一般方法。
