Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol]
This study describes the preparation of new series of tetra-dentate N2O2 dinuclear complexes (Cr3+, Co2+, Cu2+) of the Schiff base derived from condensation of 1-Hydroxy-naphthalene-2-carbaldehyde with 2-amino-5-(2-hydroxy-phenyl)-1,3,4-thiadiazole. The structures of the ligands were identified usi...
Main Author: | |
---|---|
Format: | Article |
Language: | Arabic |
Published: |
College of Science for Women, University of Baghdad
2022-08-01
|
Series: | Baghdad Science Journal |
Subjects: | |
Online Access: | https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6353 |
_version_ | 1818472467098763264 |
---|---|
author | Naser Shaalan |
author_facet | Naser Shaalan |
author_sort | Naser Shaalan |
collection | DOAJ |
description |
This study describes the preparation of new series of tetra-dentate N2O2 dinuclear complexes (Cr3+, Co2+, Cu2+) of the Schiff base derived from condensation of 1-Hydroxy-naphthalene-2-carbaldehyde with 2-amino-5-(2-hydroxy-phenyl)-1,3,4-thiadiazole. The structures of the ligands were identified using IR, UV-Vis , mass, elemental analysis and 1H-NMR techniques. All prepared complexes have been characterized by conductance measurement, magnetic susceptibility, electronic spectra, infrared spectrum, theromgravimatric analysis (TGA) and metal analysis by atomic absorption. From stoichiometry of metal to ligand and all measurements show a octahedral geometry proposed for all complexes of the (Cr3+, Co2+, Cu2+). conductivity measurement shows that of the prepared (Co2+, Cu2+) complexes were non electrolyte but (Cr3+) complexes were electrolyte. The parameters of thermodynamic, activation energy Ea , enthalpy ΔH, entropy ΔS and Gibbs free energy ΔG were calculated using Coats-Redfern method by the TGA curve. The bioactivity of the prepared (LH2) and its complexes have been examined with antibacterial activity which shows significant activity against some fungi and bacteria.
|
first_indexed | 2024-04-14T04:09:06Z |
format | Article |
id | doaj.art-0d638d495995424791dd37b9a354cfd3 |
institution | Directory Open Access Journal |
issn | 2078-8665 2411-7986 |
language | Arabic |
last_indexed | 2024-04-14T04:09:06Z |
publishDate | 2022-08-01 |
publisher | College of Science for Women, University of Baghdad |
record_format | Article |
series | Baghdad Science Journal |
spelling | doaj.art-0d638d495995424791dd37b9a354cfd32022-12-22T02:13:16ZaraCollege of Science for Women, University of BaghdadBaghdad Science Journal2078-86652411-79862022-08-0119410.21123/bsj.2022.19.4.0829Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol]Naser Shaalan0Department of Chemistry, College of Science for Women, University of Baghdad, Baghdad, Iraq. This study describes the preparation of new series of tetra-dentate N2O2 dinuclear complexes (Cr3+, Co2+, Cu2+) of the Schiff base derived from condensation of 1-Hydroxy-naphthalene-2-carbaldehyde with 2-amino-5-(2-hydroxy-phenyl)-1,3,4-thiadiazole. The structures of the ligands were identified using IR, UV-Vis , mass, elemental analysis and 1H-NMR techniques. All prepared complexes have been characterized by conductance measurement, magnetic susceptibility, electronic spectra, infrared spectrum, theromgravimatric analysis (TGA) and metal analysis by atomic absorption. From stoichiometry of metal to ligand and all measurements show a octahedral geometry proposed for all complexes of the (Cr3+, Co2+, Cu2+). conductivity measurement shows that of the prepared (Co2+, Cu2+) complexes were non electrolyte but (Cr3+) complexes were electrolyte. The parameters of thermodynamic, activation energy Ea , enthalpy ΔH, entropy ΔS and Gibbs free energy ΔG were calculated using Coats-Redfern method by the TGA curve. The bioactivity of the prepared (LH2) and its complexes have been examined with antibacterial activity which shows significant activity against some fungi and bacteria. https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6353Biological activities, Thermodynamic parameters, 2-hydroxy-1-naphthaldehyde, 1,3,4-thiadiazole |
spellingShingle | Naser Shaalan Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol] Baghdad Science Journal Biological activities, Thermodynamic parameters, 2-hydroxy-1-naphthaldehyde, 1,3,4-thiadiazole |
title | Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol] |
title_full | Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol] |
title_fullStr | Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol] |
title_full_unstemmed | Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol] |
title_short | Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol] |
title_sort | preparation spectroscopy biological activities and thermodynamic studies of new complexes of some metal ions with 2 5 2 hydroxy phenyl 1 3 4 thiadiazol 2 ylimino methyl naphthalen 1 ol |
topic | Biological activities, Thermodynamic parameters, 2-hydroxy-1-naphthaldehyde, 1,3,4-thiadiazole |
url | https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6353 |
work_keys_str_mv | AT nasershaalan preparationspectroscopybiologicalactivitiesandthermodynamicstudiesofnewcomplexesofsomemetalionswith252hydroxyphenyl134thiadiazol2yliminomethylnaphthalen1ol |