INTERACTION OF PYROPHOSPHATE ION WITH DI-AMINES, TRI-AMINES AND TETRAAMINES IN AQUEOUS-SOLUTION - A POTENTIOMETRIC AND CALORIMETRIC STUDY

被引：42

作者：

LABADI, I

JENEI, E

LAHTI, R

LONNBERG, H ^{[1
]}

机构：

[1] UNIV TURKU,DEPT CHEM & BIOCHEM,SF-20500 TURKU 50,FINLAND

[2] ATTILA JOZSEF UNIV,DEPT INORGAN & ANALYT CHEM,H-6701 SZEGED,HUNGARY

来源：

ACTA CHEMICA SCANDINAVICA | 1991年 / 45卷 / 10期

关键词：

D O I：

10.3891/acta.chem.scand.45-1055

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：

Successive macroscopic pK(a) values have been determined potentiometrically for the conjugate acids of spermidine (4-azaoctane-1,8-diamine), spermine (4,9-diazadodecane-1,12-diamine) and some acylic diamines at various ionic strengths in the absence and presence of tetrasodium pyrophosphate. The stability of the amine/pyrophosphate adducts have been estimated on the basis of effects of the pyrophosphate ion on the apparent acidity constants of the amines. Stoichiometry and thermodynamics of adduct formation have been elucidated from microcalorimetric measurements.

引用

页码：1055 / 1059

页数：5

共 28 条

[1] THE INTERACTIONS BETWEEN NUCLEIC-ACIDS AND POLYAMINES .2. PROTONATION CONSTANTS AND C-13 NMR CHEMICAL-SHIFT ASSIGNMENTS OF SPERMIDINE, SPERMINE, AND HOMOLOGS [J].