Title : ( Dianion N1,N4-bis(salicylidene)-S-allyl-thiosemicarbazide complexes: Synthesis, structure, spectroscopy and thermal behavior )
Authors: Mehdi Ahmadi , Joel T. Mague , Alireza Akbari , Reza Takjoo ,
Full TextAbstract
The products with the general formulas VO(Salits) 1, Mn(Salits)Br 2, Fe(Salits)Cl 3 and UO2(Salits)(MeOH) 4 (Salits = N1,N4-bis(salicylidene)-S-allyl-thiosemicarbazide) are prepared by the reaction of salicylaldehyde-S-allyl-thiosemicarbazone (H2L) and salicylaldehyde with VOSO43H2O, Mn(CH3COO)24H2O, FeCl36H2O and UO2(CH3COO)22H2O, respectively. Complexes 1–4 were characterized by elemental analysis, spectroscopic (FT-IR and UV–Vis) and TGA techniques. Crystal and molecular structures of the complexes were determined by single crystal X-ray diffraction. The results revealed that the complexes 1, 2 and 3 contain a dideprotonated tetradentate form of Salits coordinated via N2O2 donors along with oxido, bromido or chlorido ligands, respectively, and they have distorted square pyramidal geometries. However, the complex 4 adopts a severely distorted pentagonal bipyramidal geometry consisting of N2O2 coordination of Salits, a methanol ligand and two oxygens of the uranyl moiety. TG analysis howed that complex 3 is more stable than the others.
Keywords
Isothiosemicarbazide N2O2 donor TGA Spectroscopy Crystal structures
@article{paperid:1029809,
author = {Mehdi Ahmadi and Joel T. Mague and Alireza Akbari and Takjoo, Reza},
title = {Dianion N1,N4-bis(salicylidene)-S-allyl-thiosemicarbazide complexes: Synthesis, structure, spectroscopy and thermal behavior},
journal = {Polyhedron},
year = {2012},
volume = {42},
month = {June},
issn = {0277-5387},
pages = {128--134},
numpages = {6},
keywords = {Isothiosemicarbazide
N2O2 donor
TGA
Spectroscopy
Crystal structures},
}
%0 Journal Article
%T Dianion N1,N4-bis(salicylidene)-S-allyl-thiosemicarbazide complexes: Synthesis, structure, spectroscopy and thermal behavior
%A Mehdi Ahmadi
%A Joel T. Mague
%A Alireza Akbari
%A Takjoo, Reza
%J Polyhedron
%@ 0277-5387
%D 2012
