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Co (II), Cu (II), Mn (II), Ni (II), Pd (II), and Pt (II) complexes of bidentate Schiff base ligand: Synthesis, crystal structure, and acute toxicity evaluation
Author(s) -
Lupașcu Gina,
Pahonțu Elena,
Shova Sergiu,
Bărbuceanu Ștefania Felicia,
Badea Mihaela,
Paraschivescu Codruța,
Neamțu Johny,
Dinu Mihaela,
Ancuceanu Robert Viorel,
Drăgănescu Doina,
DinuPîrvu Cristina Elena
Publication year - 2021
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.6149
Subject(s) - chemistry , copper , denticity , nickel , molar conductivity , ligand (biochemistry) , palladium , schiff base , crystal structure , crystallography , metal , coordination geometry , platinum , stereochemistry , molecule , catalysis , organic chemistry , biochemistry , hydrogen bond , receptor
5‐methoxy‐2‐(((2chloro‐5‐(trifluoromethyl)phenyl)imino)methyl)phenol) (HL) and its cobalt (II), copper (II), manganese (II), nickel (II), palladium (II), and platinum (II) complexes, [Co(L) 2 ]·4H 2 O ( 1 ), [Cu(L) 2 ] ( 2 ), [Mn(L) 2 (H 2 O) 2 ]·H 2 O ( 3 ), [Ni(L) 2 ] ( 4 ), [Pd(L) 2 ] ( 5 ), [Pt(L) 2 ] ( 6 ), were synthesized and characterized. The compounds were investigated by different physico‐chemical techniques including IR, 1 H‐NMR, 13 C‐NMR, UV‐Vis, mass spectroscopies, elemental and thermal analysis, magnetic susceptibility measurements, and molar electric conductivity. The molecular structures of the HL ligand and copper (II), nickel (II), and palladium (II) complexes were confirmed by X‐ray crystallography analysis on the monocrystal. Each metal ion, in these complexes, is four‐coordinated in N 2 O 2 coordination environment. The coordination geometry of Ni 2+ and Pd 2+ is square planar due to cystallographically imposed inversion symmetry of the metal centers, and the coordination geometry of copper atom can be described as tetrahedrally distorted square planar. The assessed toxicity of the ligand and its complex combinations on plant cell of Triticum aestivum L. were macroscopically and microscopically consistent. The same substances were investigated for the animal cell toxicity on crustacean Artemia franciscana Kellogg, and Mn 2+ complex did not record any lethal effect.