Effect of micelles on speciation of ternary complexes of nickel(II) with L-arginine and L-histidine

被引：20
|
作者：
Rao, Gollapaili Nageswara [1 ]
Sudarsan, Kochu Govindan
机构：
[1] Andhra Univ, Sch Chem, Visakhapatnam 530003, Andhra Pradesh, India
[2] Anil Neerukonda Inst Technol & Sci, Dept Chem, Visakhapatnam 531162, Andhra Pradesh, India
来源：
CHEMICAL SPECIATION AND BIOAVAILABILITY | 2006年 / 18卷 / 02期
关键词：
speciation; micelle; nickel; L-arginine; L-histidine;
D O I：
10.3184/095422906782146267
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
A computer assisted investigation has been made pH-metrically on the speciation of mixed ligand complexes in ternary systems consisting of nickel(II), L-arginine and L-histidine in micellar media. The existence of different ternary species is established from modelling studies using the computer program MINIQUAD75. The relative concentrations and stabilities of the ternary species are compared with those of binary species. The extra stability associated with the ternary complexes is attributed to factors such as charge neutralization, chelate effect, stacking interactions and hydrogen bonding.
引用
收藏
页码：71 / 76
页数：6
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