Tetranuclear copper(II) complexes. Copper(II) complexes of schiff bases derived from histamine and salicylaldehyde or 2-pyridinecarbaldehyde

✍ Scribed by Yasuo Nakao; Wasuke Mori; Naoki Okuda; Akitsugu Nakahara

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 334 KB
• Volume: 35
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)93408-x

✦ Synopsis

Reaction of copper(lll ions with the Schiff bases derived from histamine and salicylaldehyde or 2pyridinecarbaldehyde were investigated in acidic and basic media. The copper complexes obtained from the reactions in acidic solutions were mononuclear complexes I and II, while those from the reactions in basic solutions were tetranuclear complexes III and IV, in which the four copper ions were tetrahedrally arranged. A study on magnetic property (4.2-300 K) of the tetranuclear complexes by the Faraday method suggested the presence of antiferromagnetic interactions between the four copper ions.