Square-planar 1:2 Ni(II) and Pd(II) complexes with different coordination mode of salicylaldehyde (4)-phenylthiosemicarbazone: Synthesis, structure and spectral properties

Square-planar 1:2 Ni(II) (1) and Pd(II) (2a, 2b) complexes with different coordination mode of salicylaldehyde (4)-phenylthiosemicarbazone (4-PhTSC-salH 2) have been synthesized. The molecular and crystal structure for obtained complexes was determined by X-ray crystallography and confirmed by 1H NM...

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Bibliographic Details
Published inJournal of molecular structure Vol. 984; no. 1; pp. 15 - 22
Main Authors Bon, V.V., Orysyk, S.I., Pekhnyo, V.I., Volkov, S.V.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.12.2010
Subjects
Bonding
Crystal structure
Infrared radiation
Ligands
Molecular structure
Nickel
Palladium
Polymorphism
Spectra
Sulfur
Thiosemicarbazone
X-ray structure
X-rays
Nickel
Palladium
Thiosemicarbazone
X-ray structure
Polymorphism
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Summary:Square-planar 1:2 Ni(II) (1) and Pd(II) (2a, 2b) complexes with different coordination mode of salicylaldehyde (4)-phenylthiosemicarbazone (4-PhTSC-salH 2) have been synthesized. The molecular and crystal structure for obtained complexes was determined by X-ray crystallography and confirmed by 1H NMR, UV–vis, IR spectroscopy and elemental analysis. It has been shown that one of the 4-PhTSC-salH 2 molecules coordinate to the metal ion in tridentate manner in thiolic tautomeric form as a E-isomer; at the same time, another ligand molecule bonded to the metal ion only via thioamide sulphur atom in thion tautomeric form as a Z-isomer. The two polymorphic modifications for the Pd complex with similar molecular, but different crystal structure were obtained and discussed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0022-2860
1872-8014
DOI:10.1016/j.molstruc.2010.08.046