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Determination of the acid dissociation constants of N ‐carboxymethyl‐ N ‐( p ‐hydroxy phenyl carbamoylmethyl)‐2,3‐dihydroxy‐5‐carbomethoxy benzylamine and the stability constants of its metal complexes
Author(s) -
Yan QingYu,
Jiang Ning,
Ge ChangSheng,
Xie YuYuan
Publication year - 1989
Publication title -
acta chimica sinica english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 0256-7660
DOI - 10.1002/cjoc.19890070207
Subject(s) - chemistry , benzylamine , dissociation constant , ionic strength , dissociation (chemistry) , titration , acid dissociation constant , inorganic chemistry , metal , metal ions in aqueous solution , ionic bonding , stability constants of complexes , ion , medicinal chemistry , aqueous solution , organic chemistry , biochemistry , receptor
The acid dissociation constants of N ‐carboxymethyl‐ N ‐( p ‐hydroxy phenyl carbamoyl‐methyl)‐2,3‐dihydroxy‐5‐carbomethoxy benzylamine (CHDCB) and the stability constants of its 1:1 complexes with alkaline earth, Cd(II), Co(II), Ni(II), Cu(II), Zn(II), Fe(III), Th(IV) and U(VI) ions have been determined at 25.0 ± 0.1 °C and at an ionic strength of 0.1 (KNO 3 ) by pH titration method. The probable coordination sites have also been discussed.