Mixed ligand complexes of lanthanum-Solution studies

被引：0

作者：

Das Manwal, D ^{[1
]}

Rani, GU ^{[1
]}

机构：

[1] Osmania Univ, Nizam Coll, Dept Chem, Hyderabad 500001, Andhra Pradesh, India

来源：

NATIONAL ACADEMY SCIENCE LETTERS-INDIA | 1999年 / 22卷 / 3-4期

关键词：

binary and ternary complexes; formation constant; lanthanum; amino acids;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The formation constants of the ternary complexes of lanthanum, chosing bipyridyl, 1, 10-phenanthroline, maltol, kojic acid or acetylacetone as primary ligands and amino acids (glycine, beta-alanine or phenylalanine) as auxiliary ligands, have been determined potentiometrically in aqueous medium and 0.1 M KNO3 at 30 degrees C. The stability order of these ternary complexes is in the order : phenylalanine > beta-alanine > glycine. Influence of the ligand structure on the stability of the complexes has been discussed.

引用

页码：52 / 54

页数：3

共 9 条

[1]

BATTACHARYA PK, 1981, J SCI IND RES INDIA, V40, P382

[2]

DEVDAS P, 1994, ASIAN J CHEM, V6, P408

[3]

LIMAYE SN, 1986, P NAT ACAD SCI A, V56, P292

[4]

MANWAL D, 1995, J T SAEST, V30, P93

[5]

MANWAL D, 1996, J ELECTROCHEM SOC IN, V45, P36

[6] TERNARY COMPLEXES IN SOLUTION .28. ENHANCED STABILITY OF TERNARY METAL ION-ADENOSINE 5'-TRIPHOSPHATE COMPLEXES - COOPERATIVE EFFECTS CAUSED BY STACKING INTERACTIONS IN COMPLEXES CONTAINING ADENOSINE-TRIPHOSPHATE, PHENANTHROLINE, AND MAGNESIUM, CALCIUM, OR ZINC IONS [J].

MITCHELL, PR ;

SIGEL, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1978, 100 (05) :1564-1570

[7]

SCHWARZENBACH G, 1957, COMPLEXOMETRIC TITRA, P77

[8] TERNARY CU2+ COMPLEXES - STABILITY, STRUCTURE, AND REACTIVITY [J].

SIGEL, H .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1975, 14 (06) :394-402

[9]

YAMANCHI O, 1985, J AM CHEM SOC, V107, P5983

← 1 →