METHOD FOR PREPARING ZINC BLENDE STRUCTURE CADMIUM SULFIDE MAGIC CLUSTER WITH UNIFORM SIZES

Described is a method for preparing a cadmium sulphide magic cluster with a uniform zinc- blende structure is provided, which relates to the conversion of three cadmium sulphide magic clusters with different sizes. The product of cadmium sulphide magic number cluster was obtained by the reaction of cadmium acetate with N, N '-diphenylthiourea at high temperature and atmospheric pressure in organic phase isolated from air.The metal precursor is inorganic salt cadmium acetate of metal element cadmium of group IIB in the periodic table of elements, and the inorganic salt cadmium acetate and small molecular organic ligand containing carboxyl are dissolved in mixed organic solution of benzylamine and 1,2,4-trimethylbenzene, and the molar ratio of the organic ligand to the cadmium acetate is more than 2:1. The preparation method does not contain expensive noble metals and metal precursors and has mild reaction conditions, and is suitable for preparing the semiconductor cadmium sulphide magic cluster in an organic phase. The invention aims at developing an efficient synthesis strategy of the cadmium sulphide magic number cluster, realizing the controllable preparation of the cadmium sulphide magic number cluster protected by a small molecular organic ligand containing carboxyl, obtaining the optimal synthesis method and accurate structural information of the material, and understanding the stability of the cadmium sulphide magic number cluster, exploring the application of cadmium sulphide magic cluster in catalysis and other aspects, and promoting the development of cadmium sulphide magic cluster in chemistry and physics.