TY - Jour A2 - Pettinari,Claudio Au - Casale,Agatino Au - De Stefano,Concetta Au - Manfredi,Giuseppe Au - Milea,Demetrio Au - Sammartano,Silvio Py - 2009Da - 2009/07/05 - 烷基脱落(一世V) Compounds in Aqueous Solution: Formation, Stability, and Empirical Relationships for the Binding of Dimethyltin(IV) Cation by N- and O-Donor Ligands SP - 219818 VL - 2009 AB - The sequestering ability of polyamines and aminoacids of biological and environmental relevance (namely, ethylenediamine, putrescine, spermine, a polyallylamine, a branched polyethyleneimine, aspartate, glycinate, lysinate) toward dimethyltin(IV) cation was evaluated. The stability of various dimethyltin(IV) / ligand species was determined in
NACL.
AQ.
在
T.
=
25.
∘
C
并以不同的离子优点
(
0.1
≤.
一世
/
mol l.
-
1
≤.
1.0
)
并且稳定性常数对该参数的依赖性由扩展的debye-hückel方程和特定离子相互作用理论(sit)方法进行建模。在
一世
=
0.1
摩尔
L.
-
1
,对于我们有日志的ml物种
K.
=
10.8
乙二胺,普通酸盐,聚烯烃,聚乙胺,聚乙基,甘氨酸,溶酶和天冬氨酸分别为14.2,12.0,14.7,11.9,7.7,13.7和8.0。通过计算参数来定义偏离二甲基锡(IV)阳离子的螯合能力
pl
50.
(总配体浓度,如图
C
L.
,能够结合50%的金属阳离子),能够给出这种能力的客观表示。方程式被制定以模拟依赖性
pl
50.
在不同的变量上,例如离子强度和pH,也发现了其他经验预测关系。SN - 1565-3633 UR - https://doi.org/10.1155/2009/21155/2009/219818 Do - 10.1155 / 2009/219818 JF - 生物电磁化学和应用PB - Hindwi Publishing CorporationKW - ER -