Staff View: Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies

Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies

In this study, 4-(diphenylamino)benzaldehyde-4-(2-fluorophenyl)thiosemicarbazone (LH) ligand was synthesized from the reaction of 4-diphenylaminobenzaldehyde and 2-fluorophenyl thiosemicarbazide. The NiL2 complex containing LH ligand were synthesized and characterized using elemental analysis, infra...

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Main Authors:	M. Osman, Uwaisulqarni, Silvarajoo, Sharmili, Kamarudin, Khadijah H., Mohamed Tahir, Mohamed Ibrahim, Kwong, Huey Chong
Format:	Article
Published:	Elsevier 2021
Online Access:	http://psasir.upm.edu.my/id/eprint/94358/ https://www.sciencedirect.com/science/article/pii/S002228602031317X?via%3Dihub
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spelling	my.upm.eprints.943582023-05-03T08:35:30Z http://psasir.upm.edu.my/id/eprint/94358/ Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies M. Osman, Uwaisulqarni Silvarajoo, Sharmili Kamarudin, Khadijah H. Mohamed Tahir, Mohamed Ibrahim Kwong, Huey Chong In this study, 4-(diphenylamino)benzaldehyde-4-(2-fluorophenyl)thiosemicarbazone (LH) ligand was synthesized from the reaction of 4-diphenylaminobenzaldehyde and 2-fluorophenyl thiosemicarbazide. The NiL2 complex containing LH ligand were synthesized and characterized using elemental analysis, infrared spectroscopy, magnetic susceptibility, molar conductivity and UV-Vis spectroscopy. X-ray structure was determined for both the LH ligand and the NiL2 complex. LH ligand was also characterised via 1H NMR and 13C NMR spectroscopy. FTIR data determined the coordination mode of the ligand with Ni(II) metal ion. The FTIR spectra shows that the LH ligand behave as mononegative bidentate through azomethine (N=C) and (C-S) groups with Ni(II) metal ion. The electronic spectra and magnetic measurements agreed well with a square planar geometry for NiL2 complex with the value of 0.00 B.M. Further confirmation of NiL2 complex was determined through single X-ray Crystallography which indicated a distorted square planar geometry which the angles deviated from 90° with a maximum value of 7°. In addition, the structure of LH ligand presented a thione form and the molecule has crystallized in triclinic crystal system with Pī space group. Conductivity studies of polymer electrolyte (PE) films composed of carboxymethyl cellulose (CMC) polymer, propylene carbonate as a plasticizer and LH/NiL2 compound as a dopant were prepared by a solution casting technique. The conductivity of the prepared PE films was studied using Electrochemical Impedance Spectroscopy (EIS). The conductivity was observed for LH ligand and NiL2 complex at 3.73 × 10−9 Scm−1 and 9.81 Scm−1, respectively. Elsevier 2021-01-05 Article PeerReviewed M. Osman, Uwaisulqarni and Silvarajoo, Sharmili and Kamarudin, Khadijah H. and Mohamed Tahir, Mohamed Ibrahim and Kwong, Huey Chong (2021) Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies. Journal of Molecular Structure, 1223. art. no. 128994. pp. 1-9. ISSN 0022-2860; ESSN: 1872-8014 https://www.sciencedirect.com/science/article/pii/S002228602031317X?via%3Dihub 10.1016/j.molstruc.2020.128994
institution	Universiti Putra Malaysia
building	UPM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Putra Malaysia
content_source	UPM Institutional Repository
url_provider	http://psasir.upm.edu.my/
description	In this study, 4-(diphenylamino)benzaldehyde-4-(2-fluorophenyl)thiosemicarbazone (LH) ligand was synthesized from the reaction of 4-diphenylaminobenzaldehyde and 2-fluorophenyl thiosemicarbazide. The NiL2 complex containing LH ligand were synthesized and characterized using elemental analysis, infrared spectroscopy, magnetic susceptibility, molar conductivity and UV-Vis spectroscopy. X-ray structure was determined for both the LH ligand and the NiL2 complex. LH ligand was also characterised via 1H NMR and 13C NMR spectroscopy. FTIR data determined the coordination mode of the ligand with Ni(II) metal ion. The FTIR spectra shows that the LH ligand behave as mononegative bidentate through azomethine (N=C) and (C-S) groups with Ni(II) metal ion. The electronic spectra and magnetic measurements agreed well with a square planar geometry for NiL2 complex with the value of 0.00 B.M. Further confirmation of NiL2 complex was determined through single X-ray Crystallography which indicated a distorted square planar geometry which the angles deviated from 90° with a maximum value of 7°. In addition, the structure of LH ligand presented a thione form and the molecule has crystallized in triclinic crystal system with Pī space group. Conductivity studies of polymer electrolyte (PE) films composed of carboxymethyl cellulose (CMC) polymer, propylene carbonate as a plasticizer and LH/NiL2 compound as a dopant were prepared by a solution casting technique. The conductivity of the prepared PE films was studied using Electrochemical Impedance Spectroscopy (EIS). The conductivity was observed for LH ligand and NiL2 complex at 3.73 × 10−9 Scm−1 and 9.81 Scm−1, respectively.
format	Article
author	M. Osman, Uwaisulqarni Silvarajoo, Sharmili Kamarudin, Khadijah H. Mohamed Tahir, Mohamed Ibrahim Kwong, Huey Chong
spellingShingle	M. Osman, Uwaisulqarni Silvarajoo, Sharmili Kamarudin, Khadijah H. Mohamed Tahir, Mohamed Ibrahim Kwong, Huey Chong Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies
author_facet	M. Osman, Uwaisulqarni Silvarajoo, Sharmili Kamarudin, Khadijah H. Mohamed Tahir, Mohamed Ibrahim Kwong, Huey Chong
author_sort	M. Osman, Uwaisulqarni
title	Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies
title_short	Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies
title_full	Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies
title_fullStr	Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies
title_full_unstemmed	Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies
title_sort	ni(ii) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal x-ray crystallographic and conductivity studies
publisher	Elsevier
publishDate	2021
url	http://psasir.upm.edu.my/id/eprint/94358/ https://www.sciencedirect.com/science/article/pii/S002228602031317X?via%3Dihub
_version_	1765298658498052096
score	13.211869

Ni(II) complex containing a thiosemicarbazone ligand: synthesis, spectroscopy, single-crystal X-ray crystallographic and conductivity studies

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