Abstract
Macrocyclic ligand, 1,4,7,11-Tetraazacyclotetradecane, macrocyclic transition metal complexe, [1,4,7,11-Tetraazacyclotetradecane]cobalt(Ⅲ)-Choride, have been prepared. The crystal structure of these one complexe has been determined by X-ray diffraction.The cobalt(Ⅲ) complex, [CoCl2(isocyclam)](ClO4) has been prepared from CoCl2 as well as Na3[Co(CO3)3] with isocyclam and subsequent treatment with concentrated hydrochloric acid. The aquationkinetics of [CoCl2(isocyclam)](ClO4) has been studied over a temperature range and activation parameters determined. The results indicate a dissociative activation with retention of configuration. Consequently the values of kaq, △H? and△S? for the aquation reaction.Two articles were finished in these three years:1. Mei Ling Cheng Chung Sun Chung “What to Teach？How to Teach？──The Contents and Pedagogy of the General Education Course〝World of Chemistry.” Journal of General education，2002, pp.1-34。2. Chen Hao Chen Mei Ling Cheng Po Sen Wang Cho Ying Lu Yi Hsuan Li Cheng Shao Cheng Te Ming Chiang Meng Yun Chen Hsin Ying Peng Pin Chien Huang Chung Sun Chung “Applying an Experimental Method of instruction to enhance senior high school student’s creativities in chemistry.” Chemistry，2003, 61, pp.551-560