solvents or aqueous solutions. To obtain the most aggregation models, a concentrated solution of the pigments in a polar organic solvent was diluted with a large amount of a nonpolar organic solvent or water. Here, bacteriochlorophyll-d analogs possessing branched alkyl chains of different lengths at the peripheral 17-propionate residue on the core chlorin π-system were prepared and their highly soluble
最近,在低极性有机溶剂或
水溶液中证明了模拟自然光捕获装置 (chlorosome) 的叶绿素色素的超分子聚合。为了获得最多的聚集模型,用大量非极性有机溶剂或
水稀释
颜料在极性有机溶剂中的浓缩溶液。在这里,在核心
氯π系统上的外围 17-
丙酸盐残基上制备了具有不同长度的支链烷基链的
细菌叶绿素-d 类似物,并在单个
1-氯辛烷作为低极性溶剂中生产其高可溶性绿素超分子。采用温度依赖性电子吸收和圆二色光谱分析它们的自聚集和解聚机制。合成类似物在高温下是单体的,并且在热溶液冷却过程中通过非 S 形途径自聚集。通过加热均相溶液,将获得的绿素自聚集体可逆单聚体化。将解聚途径拟合到同速序列模型,其熔点取决于烷基链长度。