Homodinuclear tetradentate Schiff base complexes of nickel(II), cadmium(II) and mercury(II): synthesis, photophysical and mesophase investigation

Dinuclear Ni(II), Cd(II) and Hg(II) complexes have been prepared from photoluminescent salicylaldimine tetra-coordinated [N 4 O 4 ] donor compartmental Schiff base ligand. The photophysical and mesogenic properties of the compounds are investigated. The compounds are characterized by elemental analy...

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Bibliographic Details
Published in:Phase transitions 2023-04, Vol.96 (3-4), p.290-300
Main Authors: Paul, Manashi Rudra, Datta, Chitraniva
Format: Article
Language:English
Subjects:
Cadmium
Cadmium compounds
Dinuclear complex
Imines
Ligands
Mercury
Mercury (metal)
Mercury compounds
mesogenicity
Nickel
Photoluminescence
Schiff base ligand
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Summary:Dinuclear Ni(II), Cd(II) and Hg(II) complexes have been prepared from photoluminescent salicylaldimine tetra-coordinated [N 4 O 4 ] donor compartmental Schiff base ligand. The photophysical and mesogenic properties of the compounds are investigated. The compounds are characterized by elemental analyses, mass, 1 HNMR, FT-IR and UV-visible spectroscopy. The complexes adopted distorted square planar geometry. The ligand and Ni complex exhibit monotropic thermal transition in DSC thermogram whereas Cd or Hg complexes are non-mesogenic. All the complexes displayed blue emission at ∼450 nm.
ISSN:0141-1594
1029-0338
DOI:10.1080/01411594.2023.2182210