Di- and Tri-organotin(IV) Complexes of N-Acetyltriglycine and N-Benzoyltriglycine: Synthesis and Spectroscopic Characterization

✍ Scribed by Giuseppe Ruisi; Maria Teresa Lo Giudice; Friedo Huber; Michael Vornefeld

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 842 KB
• Volume: 10
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/(sici)1099-0739(199612)10:10<779::aid-aoc517>3.0.co;2-7

✦ Synopsis

Di-and tri-organotin(1V) derivatives of Nacetyltriglycine and N-benzoyltriglycine (HA) were obtained by refluxing equimolar mixtures of the ligand and the organotin(1V) oxide or hydroxide in methanol or acetone. According to the spectroscopic data, triorganotin(1V) derivatives adopt a trigonal-bipyramidal structure in which the planar R,Sn'" unit is bonded by a monodentate carboxylate group and a donor group, presumably the amide C=O. The reaction of HA with the appropriate diorganotin(1V) compounds gave both dicarboxylates R,SnA, , with six-coordinated tin, and dimeric tetraorganodistannoxanes { [R,SnA],O}, , in which the tin atoms are essentially five-coordinated.