THERMODYNAMICS OF LANTHANIDE(III) COMPLEX-FORMATION WITH NITROGEN-DONOR LIGANDS IN DIMETHYL-SULFOXIDE

被引：27
|
作者：
CASSOL, A
CHOPPIN, GR
DIBERNARDO, P
PORTANOVA, R
TOLAZZI, M
TOMAT, G
ZANONATO, PL
机构：
[1] UNIV UDINE,DIPARTIMENTO SCI & TECNOL CHIM,VIA COTONIFICIO 108,I-33100 UDINE,ITALY
[2] UNIV PADUA,DIPARTIMENTO CHIM INORGAN MET ORGAN & ANALIT,I-35131 PADUA,ITALY
[3] FLORIDA STATE UNIV,DEPT CHEM,TALLAHASSEE,FL 32306
[4] CNR,IST CHIM & TECNOL RADIOELEMENTI,I-35100 PADUA,ITALY
来源：
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1993年 / 11期
关键词：
D O I：
10.1039/dt9930001695
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Potentiometric and calorimetric data for the complexation of lanthanide(III) cations by the neutral nitrogen-donor ligands diethylenetriamine or triethylenetetramine in anhydrous dimethyl sulfoxide at 25-degrees-C and in an ionic medium of 0.1 mol dm-3 NEt4ClO4 have been obtained. All the complexes are strongly enthalpy stabilized while the entropy changes are unfavourable. The results are discussed in terms of the charge density of the metal ions, the solvation changes along the lanthanide(III) series and the structural and conformational characteristics of the ligands.
引用
收藏
页码：1695 / 1698
页数：4
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