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Cobalt (II) Complexes with Tri‐ and Tetradentate Schiff Bases Derived From 2‐Furyl Glyoxal and Some Amines
Author(s) -
Dhakarey Rajesh,
Saxena Greesh
Publication year - 1985
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198500007
Subject(s) - chemistry , glyoxal , cobalt , octahedron , schiff base , ligand (biochemistry) , ion , medicinal chemistry , ligand field theory , nitrogen , stereochemistry , crystallography , inorganic chemistry , organic chemistry , biochemistry , receptor
Abstract Coordination compounds of cobalt (II) with four new schiff bases of furyl glyoxal, 2‐furyl‐methyl‐2′‐carboxylato ketoanil (2 FMCKA), 2‐furyl glyoxal ethyenediimine (2 FGED), 2‐furyl giyoxal‐2′‐sulphonic acid anil (2 FGSAA) and 2‐furyl glyoxal‐2′‐chloro‐4‐nitro anilimimine (2 FGCNA) were prepared and characterised with the help of elemental analyses, magnetic measurements, infra‐red and electonic spectral data. Various ligand field parameters such as 10 Dq, B & C , F 2 & F 4 , f 2 & f 4 , h , B ° etc. and transition energies ν 1 ;, ν 2 & ν 3 , were calculated with the help of electronic spectral data. The ν(C=N) bands in the IR spectra of all the ligands are lowered in complexation indicating nitrogen coordination of the ligands. All these studies indicate that cobalt(II) ion is in a distorted octahedral environment.