Spectral properties of BChl c in nematic liquid crystals .2. Aggregated form of dye

被引：20

作者：

Dudkowiak, A ^{[1
]}

Francke, C ^{[1
]}

Amesz, J ^{[1
]}

Planner, A ^{[1
]}

Frackowiak, D ^{[1
]}

机构：

[1] POZNAN UNIV TECHNOL,INST PHYS,MOL PHYS LAB,PL-60965 POZNAN,POLAND

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1996年 / 52卷 / 12期

关键词：

bacteriochlorophyll c aggregation; delayed luminescence; liquid crystal; polarized spectroscopy;

D O I：

10.1016/0584-8539(96)01725-4

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The orientation properties of aggregated bacteriochlorophyll c in a nematic liquid crystal matrix have been studied by means of polarized steady-slate and time-resolved spectroscopy. The pigment introduced to the model system was predominantly in tetrameric (or hexameric) form with absorption maxima located at about 670 and 710 nm. Two tetramers with long-wavelength maxima at 704 and 722 nm could be distinguished. They exhibited different orientations in liquid crystal and different yields of fluorescence. Both tetramers exhibited delayed luminescence in the mu s time region.

引用

页码：1661 / 1669

页数：9

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