作者:Habibe Tezcan
DOI:10.1016/j.saa.2007.05.061
日期:2008.3
group at the o-, m-, p-positions of the 3-phenyl ring were synthesized. The structures of the formazans were confirmed by elemental analyses, GC-mass, IR, (1)H NMR, UV-vis spectra. Their absorption properties were investigated. It was seen that lambda(max) values shifted towards shorter wave lengths by 130nm in CSPF relative to 1,3,5-triphenylformazan (TPF) due to the fact that the structure of CSPF contained
新型的1,4-双-[3,3'-苯基-5,5'-(邻羧基苯基)-甲醛--1-基]-苯-邻磺酸及其衍生物在邻位含有OH基合成了3-苯环的m-,p-位。甲maz的结构通过元素分析,GC质谱,IR,(1)H NMR,UV-可见光谱确认。研究了它们的吸收性能。可以看到,相对于1,3,5-三苯基甲酰胺(TPF),CSPF中的lambda(max)值向较短波长移动了130nm,这是因为CSPF的结构包含吸电子的COOH和SO(3)H基团(变色效应)。通过将OH基团结合到CSPF的3-苯环上,观察到与OH基团的给电子作用相应的小的红移效应。