Synthesis, characterization and thermal (TG-DSC) study of yttrium methanesulfonate coordination compounds with pyridine N-oxide and 2-,3-and 4-picoline N-oxides

被引：3
|
作者：
De Moura, MDV
Matos, JDR
De Farias, RF
机构：
[1] Univ Fed Rio Grande Norte, Dept Quim, BR-59078970 Natal, RN, Brazil
[2] Univ Sao Paulo, Inst Quim, BR-05508900 Sao Paulo, Brazil
[3] Univ Fed Roraima, Dept Quim, BR-69310270 Boa Vista, Roraima, Brazil
来源：
JOURNAL OF COORDINATION CHEMISTRY | 2004年 / 57卷 / 09期
关键词：
yttrium; coordination compounds; thermogravimetry;
D O I：
10.1080/00958970410001720944
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The synthesis, characterization and thermal (TG and DSC) study of the coordination compounds Y(MS)(3)A(py-NO)(2)AH(2)O, Y(MS)(3)A(2-picNO)(3), Y(MS)(3)A(3-picNO)(2) and La(MS)(3)A(4-picNO)(2) are reported (MS=methanesulfonate, py-NO=pyridine N-oxide, and 2-picNO, 3-picNO and 4-picNO are 2-, 3- and 4-picoline N-oxides, respectively). The observed thermal stability trend is: 2-picNOapproximate to4-picNO< 3-picNO<py-NO. Release of ligand molecules (endothermic) is followed by thermal degradation of the ligands (exothermic) with an increase in the exothermic values from 2-picNO to 4-picNO.
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页码：747 / 753
页数：7
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