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化学学报
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化学学报 ›› 1989, Vol. 47 ›› Issue (5): 487-490. 上一篇    下一篇

研究论文

PH电位法研究水杨醛缩氨基硫脲与铜(II)、锌(II)、镍(II)、钴(II)、锰(II)及镉(II)的相互作用

房喻;孙作民   

  1. 陕西师范大学化学系
  • 发布日期:1989-05-15

Investigation on the interaction of salicylaldehyde-thiosemicarbazone with Cu(II), Zn(II), Ni(II), Co(II) and Cd(II) by PH potentiometric titration

FANG YU;SUN ZUOMIN   

  • Published:1989-05-15

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本文为了进一步了解具有生物活性的木杨醛缩氨基硫脲在溶液中与常见金属离子的作用本质, 在半微量恒温滴定池上用PH电位法研究了该物质与铜(II)、锌(II)、镍(II)、钴(II)、锰(II)及镉(II)等二价金属离子的配位作用.

关键词: 钴, 锌, 镍, 锰, 铜, 镉, 电位滴定, 缩氨基硫脲 P, 水杨酸 P, 络合作用

Cu(II), Zn(II), Ni(II), Co(II) and Cd(II) form 1:2 (metal to ligand) complexes with salicylaldehyde-thiosemicarbazone. The accumulative stability constants of these complexes in aq-THF (1:1, vol./vol.) have been determine at different temps. (15, 20, 25, 30 and 35癈) and the thermodn. parameters, DG? DH? and DS?was evaluated. From these results, the stability order of the complexes and the complexing ability of the ligand have been discussed.

Key words: COBALT, ZINC, NICKEL, MANGANESE, COPPER, CADMIUM, POTENTIOMETRIC TITRATION, THIOSEMICARBAZONE P, SALICYLIC ACID P, COMPLEXATION

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