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将不同含量的液晶物质4-甲氧基苄叉4′-正丁基苯胺(MBBA)分别加到叶绿素a(Chla)的异辛烷溶液中,将这些溶液分别涂在铂板上形成液晶叶绿素铂电极,测求其光感电位ΔE的变亿;另一方面将这些溶液分别涂在玻璃板上,形成液晶叶绿素涂层的玻璃板,测求其导数光谱特性谱峰(743nm)相对高度h/h_T的变化。发现随着MBBA量的增加,ΔE与h/h_T两种数值均有极大信出现。另外用石油醚溶剂、异辛烷-石油醚(1:9V/V)溶剂代替异辛烷溶剂,进行同样实验,发现也都有这两种极大值出现,而且这三种溶剂体系的六个极大值都发生在MBBA浓度为0.001±0.0005mol L~(-1)范围内。本文根据导数光谱原理,分子结构以及液晶物质特性,对以上实验的变化规律作了理论说明。
4-Methoxybenzylidene 4’-n-butylaniline (MBBA) with different content of liquid crystal material were respectively added to the isooctane solution of chlorophyll a (Chla), and these solutions were respectively coated on the platinum plate to form liquid crystal chlorophyll Platinum electrode, measured photo-induced potential ΔE variable billion; on the other hand these solutions were coated on the glass plate, the formation of liquid crystal chlorophyll-coated glass plate, measured derivative of the spectral peak (743nm) relative height h / h_T changes. It is found that with the increase of the amount of MBBA, both the ΔE and h / h_T values have great letters. In addition, petroleum ether solvent, isooctane - petroleum ether (1: 9V / V) solvent instead of isooctane solvent, the same experiment and found that also have these two maximum values appear, and the three solvent system of six Each maximum occurred at a concentration of 0.001 ± 0.0005 mol L -1 in MBBA. According to the principle of derivative spectrum, the molecular structure and the properties of the liquid crystal material, the theory of the variation of the above experiment is explained theoretically.