Synthesis, Characterisation, and Molecular Structures of New Ferrocenyl Schiff Bases and their Aluminium and Zinc Complexes

✍ Scribed by Elmar Hecht

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: German
• Weight: 189 KB
• Volume: 627
• Category: Article
• ISSN: 0372-7874
• DOI: 10.1002/1521-3749(200110)627:10<2351::aid-zaac2351>3.0.co;2-r

✦ Synopsis

The aldimines FcCH=NCH(Me)CH 2 OMe (1), FcCH=NCH 2 H 6 H 4 -2-OMe (2) and FcCH=N(CH 2 ) 3 NHMe (3) were obtained by reacting ferrocene aldehyde with the corresponding primary amines. Compounds 1±3 react with Me 2 Zn and Me 3 Al in a molar ratio 1 : 1 to the corresponding adducts 4±8. Reactions of 1 and 2 with t-butyllithium lead to an addition of the lithium reagent yielding the corresponding amides 9 and 10. Compounds 1±10 were characterised by 1 H-and 13 C-NMR spectroscopy. The molecular structures of 1, 2, 4, 5, 9 and 10 were determined by X-ray diffraction. 4 consists of monomeric molecules, containing a four-coordinated Zn atom as a result of Zn±O and Zn±N interactions. In contrast to 4 the Al atom in 5 is coordinated by the N atom of the ligand only. 9 and 10 form dimeric molecules with four-coordinated Li atoms as the general structural feature.