Synthesis And Properties Of Sulfur-containing Functional Complexes

With the progress of human industrial civilization, the increasingly serious environmental pollution was accompanied, especially the phenomenon of the most severe water pollution, which has attracted widespread attentions. Of water pollution, the organic pollution is the biggest part. Therefore, beside the pollution prevention and saving water, the detection and purification of waste water become a top priority. In the detection of heavy metal ions, small molecule fluorescent probes have been reported increasingly. And in recent last ten years,it has been found that metal porphyrins and metal phthalocyanines as a bionic photocatalyst has good effect on degradation of the pollutants in water. The multi-phase photocatalytic oxidation technology for oxidative degradation, even mineralization of organic pollutants as a green method of treatment, has good prospects for the development and application.The thesis was divided two parts. Because of the strong fluorescence, anthraquinones have broad prospects and academic research value in the luminescence. In the first part, 2-(((9,10-dihydro-9,10-dioxoanthracen-7-yl) methyl)sulfanyl)-3-mercaptomaleonitrile was synthesized and its properties to identify heavy metal ions was tested .More current researches are to change the peripheral groups of tetraaza- porphyrin so as to change the symmetry for optimizing the function, but the research of poly-tetraazaporphyrin has lagged behind. Due to increasedπ-electron conjugated system is conducive to optimization of electronic functions, the conjugated poly-tetraazaporphyrin have gradually been concerned by scientists. Two dimers of tetraazaporphyrin were synthesized and its structures were characterized, while photocatalytic ability of the zinc eight-butyl tetraazaporphyrin was roughly detected.This thesis include the following three aspects:1. Bis (butylthio) maleonitriles and bis (methylthio) maleonitriles as precursor, respectively reacted with four cyano -1,4 - bis thiophene, bisnuclear dimer of magnesium (S-Bu)tetraazaporphyrin and it's free ligand have been synthesized, as well as bisnuclear dimer of magnesium (S-Me)tetraaza porphyrin and it's free ligand have also been characterized by has been characterized by UV-Vis, NMR, MS, etc..2. Preliminary photocatalytic properties were studied on degradation of organic dyes rhodamine B (RhB) in water using zinc eight butylthio tetraazaporphyrin under visible irradiation.3. 2-methyl anthraquinone and 1,2-dicyano 1,2-disulfide sodium maleonitrile as raw materials, through a series of reactions, were synthesized to 2-S-methyl anthraquinone maleonitriles. The production has been characterized by NMR, MS, etc. and also been tested its ability to identify heavy metal ions.