Synthesis, characterization and thermogravimetric study of Dy and Sm 12-crown-4 bipy, terpy and phen complexes

被引:1
作者
de Farias, Robson F.
Belian, Monica F.
Alves, Severino, Jr.
de Sa, Gilberto F.
Silva, Wagner E.
Refat, Moamen S.
机构
[1] Univ Fed Roraima, Dept Quim, BR-69301970 Boa Vista, Brazil
[2] Univ Fed Pernambuco, Dept Quim Fundamental, BR-50670901 Recife, PE, Brazil
[3] Suez Canal Univ, Fac Educ, Dept Chem, Port Said, Egypt
关键词
crown ethers; thermogravimetry; rare earths;
D O I
10.1080/00958970701304384
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The synthesis, characterization and thermogravimetric study of [Sm(12C4)(H2O)(4)]Cl-3, [Dy(12C4)(H2O)(4)]Cl-3, [Sm(12C4)(bipy)(H2O)(2)]Cl-3, [Dy(12C4)(bipy)(H2O)(2)]Cl-3, [Sm(12C4) (bipy)(phen)]Cl-3, [Dy(12C4)(bipy)(phen)(2)]Cl-3, [Sm(12C4)(phen)(2)]Cl-3, [Dy(12C4)(phen)(2)]Cl-3, [Sm(12C4)(terpy)(H2O)]Cl-3 and [Dy(12C4)(terpy)(H2O)]Cl-3 (12C4=12-crown-4; bipy = bipyridine; phen=1,10-phanathroline; terpy=terpyridine) are reported. All compounds exhibit CN = 8 and four oxygen-lanthanide bonds of the crown ether provide it very stable (from the thermal point of view) chemical environment, since the crown ether molecules are the last organic moiety to be released under heating.
引用
收藏
页码:2695 / 2702
页数:8
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