@article{oai:u-ryukyu.repo.nii.ac.jp:02003761,
 author = {Murakami, Masahiko and Takada, Takeo and Kuniyoshi, Masayuki and 国吉, 正之},
 issue = {80},
 journal = {琉球大学理学部紀要, Bulletin of the College of Science. University of the Ryukyus},
 month = {Sep},
 note = {To study the decomposition mechanism of copper(2) pyrrolidinecarbodithioato chelate (Cu(PCD)_2) extracted into di-isobutylketone (DIBK) with 1-pyrrolidinecarbodithioate (APCD) from 0,01～8 M hydrochloric acid solution, the effect of the ligand concentration in organic phase on the decomposition of Cu(PCD)_2 has been studied. The concentration of the free ligand in the extract decreases with time; this decrease obeys good first-order kinetics, and depends on the acidity. On the other hand, the concentration of Cu(PCD)_2 is not seemingly altered as long as the free ligand is present in the extract; however, the copper chelate begins to react with hydrochloric acid as soon as the free reagent has run out due to its decomposition. Furthermore, the reaction of Cu(PCD)_2 with hydrochloric acid in IBMK solution has also been studied kinetically. To monitor the reaction, the molar absorption coefficients of some species [CuCl(PCD), CuCl_2, and CuCl^-_3], which are formed in the course of this reaction, at 350 - 500 nm are determined. It can be thought that the reaction consists of not only simple ligand substitution by Cl^- but also of the path which gives CuCl(PCD) by reaction between Cu(PCD)_2 and CuCl_2,, and the path can be regard as the practical motive force of the decomposition of Cu(PCD)_2 extracted from hydrochloric acid solution., 紀要論文},
 pages = {45--61},
 title = {MECHANISM OF CHARACTERISTIC DECOMPOSITION OF Cu(PCD)_2 EXTRACTED FROM HYDROCHLORIC ACID: CONTRIBUTION OF REACTION BETWEEN Cu(PCD)_2 AND CuClx^(2-x)},
 year = {2005}
}