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Complex Compounds of Schiff's bases of 3‐aldehydo‐salicylic acid
Author(s) -
Poddar Sailendra Nath
Publication year - 1963
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19633220512
Subject(s) - chemistry , sulfanilic acid , ethylenediamine , anthranilic acid , schiff base , polymer chemistry , metal , stereochemistry , aniline , medicinal chemistry , ionic bonding , organic chemistry , ion
The present paper describes the preparation and properties of SCHIFF's bases derived from 3‐aldehydo‐salicylic acid and aniline, ethylenediamine, orthophenylenediamine, glycine, anthranilic acid, sulfanilic acid or sulfanilamide, as well as the metallic complexes of them. The SCHIFF's bases with mono‐amines or amino‐acids behave as tridentate ligands with acidic group of the amino‐component remaining free, while those with diamines behave as quadridentate ligands with both the carboxyl groups of the 3‐aldehydo acid remaining unattached. The magnetic moment values of the metal complexes reveal that all of them, with the exception of the two nickel compounds of the SCHIFF's bases of ethylenediamine‐3‐aldehydosalicylic acid and orthphenylenediamine‐3‐aldehydo salicylic acid, are of ionic or outer‐level covalent type. The two nickel compounds, just mentioned, are diamagnetic and orangeyellow in colour and should, therefore, be represented as penetration or innerlevel complexes with planar dsp 2 hybrid bonds.