TERNARY CHELATES OF ZN(II) WITH SOME BIOLOGICAL ACTIVE LIGANDS

被引：18

作者：

SHELKE, DN

JAHAGIRDAR, DV

机构：

[1] Department of Chemistry, Marathwada University, Aurangabad

来源：

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY | 1979年 / 41卷 / 11期

关键词：

D O I：

10.1016/0022-1902(79)80196-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The mixed-ligand chelates of Zn(II) with aminobutanedioic (aspartic), 2-aminopropanedioic (glutamic), pyridine 2,3-dicarboxylic (quinolinic), pyridine 2,6 dicarboxylic (diplicolinic), mercapto butanedioic (thiomalic) and thiodiacetic (thiodiglycolic), acids have been investigated potentiometrically at 30°C and 0.1 M (NaClO4) ionic strength. The mixed-ligand chelate is formed by a stepwise equilibria when quinolinic and dipicolinic acids are used as primary ligands. The mixed-ligand chelate formation is occured in aspartic-thiomalic, aspartic-thiodiglycolic, glutamic-thiomalic, glutamic-thiodiglycolic acid systems by simultaneous equilibrium. The high stability of mixed-ligand chelate is explained on the considerations of structural aspects. It is concluded that in the mixed-ligand chelation, the coordination number six of Zn(II) is fulfilled. © 1979.

引用

页码：1635 / 1638

页数：4

共 13 条

[1]

COTTON FA, 1972, ADV INORG CHEM, P610

[2]

GARGELY A, 1974, J INORG NUCL CHEM, V36, P699

[3] METHODS FOR COMPUTING SUCCESSIVE STABILITY CONSTANTS FROM EXPERIMENTAL FORMATION CURVES [J].

IRVING, H ;

ROSSOTTI, HS .

JOURNAL OF THE CHEMICAL SOCIETY, 1953, (NOV) :3397-3405

[4] THE CALCULATION OF FORMATION CURVES OF METAL COMPLEXES FROM PH TITRATION CURVES IN MIXED SOLVENTS [J].

IRVING, HM ;

ROSSOTTI, HS .

JOURNAL OF THE CHEMICAL SOCIETY, 1954, (AUG) :2904-2910

[5] STUDIES OF UO2(II) COMPLEXES OF SUBSTITUTED SALICYLIC ACIDS [J].

JAHAGIRDAR, DV ;

KHANOLKAR, DD .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1973, 35 (03) :921-930

[6]

KHANOLKAR VD, 1973, J INORG NUCL CHEM, V35, P930

[7]

MARTELL AE, 1962, CHEM METAL CHELATE C

[8]

MARTIN RP, 1973, METAL ION BIOL SYSTE, V2

[9] EQUILIBRIUM STUDIES OF METAL-ION COMPLEXES OF INTEREST TO NATURAL WATERS .1. SIMPLE AND MIXED COMPLEXES OF DL-TARTARIC AND MESO-TARTARIC ACID WITH FE(III), LA(III) AND ND(III) IONS [J].

RAMAMOORTHY, S ;

MANNING, PG .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1972, 34 (06) :1977-+

[10]

SHELKE DN, COMMUNICATION

← 1 2 →