Thermal
analysis of some polynuclear coordination compounds |
| |
| Authors: | L Patron P Budrugeac A Balu Oana Carp L Diamandescu M Feder |
| |
| Institution: | (1) Institute of Physical Chemistry, ‘I. Murgulescu’, Bucharest, Romania, 060021, Splaiul Independentei, No. 202;(2) ICPE-CA, Research and Development Institute, Bucharest, Romania, 313 Splaiul Unirii, Sector 3;(3) National Institute of Materials Physics, Bucharest, Romania, P. O. Box MG-7 |
| |
| Abstract: | The thermal
behaviour of five polynuclear coordination compounds containing tartaric anion
as ligand, namely (NH4)3LnFe(C4O6H4)3(OH)3] (Ln=La
and Eu), (NH4)2PrFe(C4O6H4)3(OH)2] and (NH4)LnFe(C4O6H4)3(OH)]·3H2O (Ln=Nd and Gd) was investigated. The reaction progress
was studied by TG/DTA and FTIR measurements. Oxalates and oxocarbonates were
identified as intermediates. In the case of Ln=La,
Nd, Pr, Eu and Gd, pure LnFeO3 was obtained as final
decomposition product. The thermal decomposition of Eu-Fe compound, leads
to a mixture of mixed (ortho-ferrite (EuFeO3) and garnet
(Eu3Fe5O12))
and simple oxides (Eu2O3 and
α-Fe2O3). |
| |
| Keywords: | lanthanide-iron coordination compound ortho-ferrite thermal analysis |
| 本文献已被 SpringerLink 等数据库收录！ |
|
