Magnetic Moments and d–d Bands of N-n-Propanolsalicylaldiminato-copper(II)
Reads0
Chats0
TLDR
In this article, the substituent effect transmitted to coordinating atoms which are not in the superexchange pathway between copper-(II) ions in a pair was investigated and the magnetic moments observed at room temperature were corrected for the temperature variations to those at 25°C by graphic method based on Bleaney and Bowers' equation.Abstract:
The reaction of cupric acetate with the reaction mixture of γ-aminopropyl alcohol and substituted salicylaldehydes in ethanol gave dimeric copper(II) complexes. The postulated structure of these complexes makes it possible to test the substituent effect transmitted to the coordinating atoms which are not in the superexchange pathway between copper-(II) ions in a pair. The magnetic moments observed at room temperature were corrected for the temperature variations to those at 25°C by graphic method based on Bleaney and Bowers’ equation. The observed substituent effect on the relation between μeff25°C and λmax is different from that observed for dimeric cupric halides complexes of substituted pyridine N-oxides. In these complexes the substituent effect transmits to the bridging oxygen atom in the superexchange pathway. As compared with the parent complex (H), methyl, chloro and benzo groups weakened the magnetic interaction but nitro group strengthened it. An interpretation of the substituent effect is given...read more
Citations
More filters
Journal ArticleDOI
Factors affecting the magnetic properties of dimeric copper(II) complexes
Michinobu Kato,Yoneichiro Muto +1 more
Journal ArticleDOI
Transition metal complexes with binucleating ligands
Journal ArticleDOI
Antitumour copper(II) salicylaldehyde benzoylhydrazone (H2sb) complexes: physicochemical properties and the single-crystal X-ray structures of [{Cu(H2sb)(CCl3CO2)2}2] and [{Cu(Hsb) (ClO4) (C2H5OH)}2] and the related salicylaldehyde acetylhydrazone (H2sa) complex, [Cu(Hsa)Cl(H2O)]·h2O
TL;DR: Copper(II) complexes of the antitumour ligand salicylaldehyde benzoylhydrazone (H2sb) have been prepared in the presence of strong acids.
References
More filters
Journal ArticleDOI
Anomalous Paramagnetism of Copper Acetate
Brebis Bleaney,K. D. Bowers +1 more
TL;DR: In this article, the paramagnetic resonance spectrum of copper acetate is anomalous in that it resembles that of an ion of spin 1, and its intensity decreases as the temperature is lowered.
Journal ArticleDOI
The π System of Binuclear Copper(II) and Chromium(II) Acetates
L. Dubicki,R. L. Martin +1 more