Stability constants of tervalent rare earth metal complexes with 1,10-diaza-4,7,13,16-tetraoxacyclooctadecane in aqueous sodium chloride solutions

被引：2

作者：

Inaba, K ^{[1
]}

Masuda, Y

机构：

[1] Natl Inst Environm Studies, Tsukuba, Ibaraki 305, Japan

[2] Kobe Univ, Fac Sci, Dept Chem, Kobe, Hyogo 657, Japan

来源：

ANALYTICAL SCIENCES | 1998年 / 14卷 / 02期

关键词：

stability constant; liquid-liquid extraction; masking; rare earth(III); kryptofix; 22;

D O I：

10.2116/analsci.14.305

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The metal complex stability between tervalent rare earth metal ions (ytterium, praseodymium, europium, gadolinium, holmium and ytterbium) and 1,10-diaza-4,7,13,16-tetraoxacyclooctadecane (kryptofix 22) in aqueous sodium chloride solution was studied by solvent extraction method. The solvent extraction included 2-thenoyltrifluoroacetone as a chelating extractant and carbon tetrachloride as a solvent. The metal extractability in the absence and presence of kryptofix 22 gave a quantitative measure of the stability of metal-kryptofix 22 complexes formed in aqueous solution which were found to be unanimously 1:1 (metal:ligand ratio) in composition. The complex stability constants thus obtained (0.1 M sodium chloride, 298 K) were in the range 10(9) - 10(11), being maximum at gadolinium. The values were discussed in comparison with those of the related ligand 18-crown-6.

引用

页码：305 / 310

页数：6

共 13 条

[1] Stability Constants of Tervalent Rare Earth Metal Complexes with 1,10-Diaza-4,7,13,16-tetraoxacyclooctadecane in Aqueous Sodium Chloride Solutions
Kazuho Inaba
Yoshitaka Masuda
Analytical Sciences, 1998, 14 : 305 - 310
[2] The syntheses of N,N'-bis(aroylmethyl)-1,10-diaza-4,7,13,16-tetraoxacyclooctadecane
Yu, J
Xu, ZH
Xu, GX
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 1996, 17 (05): : 750 - 752
[3] DISSOCIATION KINETICS OF 1,10-DIAZA-4,7,13,16-TETRAOXACYCLOOCTADECANE-N,N'-DIACETIC ACID COMPLEXES OF LANTHANIDES
CHANG, CA
SEKHAR, VC
INORGANIC CHEMISTRY, 1987, 26 (12) : 1981 - 1985
[4] 1,10-DIAZA-4,7,13,16,-TETRAOXACYCLOOCTADECANE-N,N'-DIACETIC ACID AS A POTENTIAL LANTHANIDE ION-SELECTIVE REAGENT
CHANG, CA
ROWLAND, ME
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 185 (MAR): : 243 - INOR
[5] SYNTHESIS OF CHELATING-AGENTS .13. CROWN COMPLEXANE - 1,10-DIAZA-4,7,13,16-TETRAOXACYCLOOCTADECANE-N,N'-DIPROPIONIC ACID
TAKAGI, M
TAZAKI, M
UENO, K
CHEMISTRY LETTERS, 1978, (10) : 1179 - 1182
[6] METAL-COMPLEX FORMATION WITH 1,10-DIAZA-4,7,13,16-TETRAOXACYCLOOCTADECANE-N,N'-DIACETIC ACID - AN APPROACH TO POTENTIAL LANTHANIDE ION-SELECTIVE REAGENTS
CHANG, CA
ROWLAND, ME
INORGANIC CHEMISTRY, 1983, 22 (26) : 3866 - 3869
[7] Synthesis and crystal structure of complex copper nitrate with N,N′-bis(3-hydroxy-6-methyl-2-pyridylmethyl)-1,10-diaza4,7,13,16-tetraoxacyclooctadecane
Jia, X
Zhu, W
Zhang, Y
Yan, X
JOURNAL OF MOLECULAR STRUCTURE, 2002, 604 (2-3) : 159 - 164
[8] 1,10-DIAZA-4,7,13,16-TETRAOXACYCLOOCTADECANE-1,10-BIS(MALONATE), A LIGAND WITH HIGH SR-2+/CA-2+ AND PB-2+/ZN-2+ SELECTIVITIES IN AQUEOUS-SOLUTION
BRUCHER, E
GYORI, B
EMRI, J
SOLYMOSI, P
SZTANYIK, LB
VARGA, L
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1993, (06) : 574 - 575
[9] Dissociation kinetics of nickel(II), zinc(II) and cadmium(II) complexes of 1,7-diaza-4,10,13-trioxacyclopentadecane-N,N'-diacetic acid and 1,10-diaza-4,7,13,16-tetraoxacyclooctadecane-N,N'-diacetic acid
Chang, CA
JOURNAL OF THE CHINESE CHEMICAL SOCIETY, 1996, 43 (05) : 419 - 426
[10] MACROCYCLIC POLYPHOSPHANE LIGANDS - COBALT(II) AND NICKEL(II) COMPLEXES OF 1,10-DIPROPYL-4RS,7SR,13SR,16RS-TETRAPHENYL-1,10-DIAZA-4,7,13,16-TETRAPHOSPHA-CYCLOOCTADECANE AND CRYSTAL-STRUCTURE OF THE COBALT TETRAPHENYLBORATE MONOHYDRATE COMPLEX
MANGANI, S
ORIOLI, P
CIAMPOLINI, M
NARDI, N
ZANOBINI, F
INORGANICA CHIMICA ACTA-ARTICLES AND LETTERS, 1984, 85 (01): : 65 - 72

← 1 2 →