<b>Synthesis, spectral and thermal properties of some high coordinated complexes of thorium(IV) and dioxouranium(VI) derived from 4[N-(2’-hydroxy-1’-naphthalidene)-amino]antipyrinethiosemicarbazone</b>
In present work, we describe the synthesis of thorium(IV) and dioxouranium(VI) coordination compounds of 4[N-(2’-hydroxy-1’-naphthalidene)amino]antipyrinethio- semicarbazone (HNAAPTS) with the general composition ThX<sub>4</sub>.n(HNAAPTS) (X = Cl, Br, I, NCS or ClO<sub>4</sub&g...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Chemical Society of Ethiopia
2005-12-01
|
Series: | Bulletin of the Chemical Society of Ethiopia |
Subjects: | |
Online Access: | http://www.ajol.info/index.php/bcse/article/view/21124 |
Summary: | In present work, we describe the synthesis of thorium(IV) and dioxouranium(VI) coordination compounds of 4[N-(2’-hydroxy-1’-naphthalidene)amino]antipyrinethio- semicarbazone (HNAAPTS) with the general composition ThX<sub>4</sub>.n(HNAAPTS) (X = Cl, Br, I, NCS or ClO<sub>4</sub>, n = 2; X = NO3, n = 1) and UO<sub>2</sub>X<sub>2</sub>.n(HNAAPTS) (X = Br, I, NCS or ClO<sub>4</sub>, n = 2, X = NO<sub>3</sub> or CH<sub>3</sub>COO, n = 1). All the coordination compounds were characterized by analytical, molar mass, molar conductance and infrared studies. The infrared spectral studies reveal that the ligand HNAAPTS is coordinated in neutral tridentate (N,N,S) fashion. The coordination number of Th(IV) in these coordination compounds varies from 6, 8, 10 or 11; while for U(VI) the coordination number are 8, 9 or 10. Thermal stabilities of these complexes were investigated through thermogravimetric analysis. |
---|---|
ISSN: | 1011-3924 1726-801X |