SYNTHESIS AND CHARACTERISATION OF TIN(IV) AND ORGANOTIN(IV) COMPLEXES OF [N′-2-HYDROXYPHENYL-6-METHYLPYRIDINE-2-CARBALDIMINE. X-RAY CRYSTAL STRUCTURES OF n-BUTYLDICHLORO[N′-2-HYDROXYPHENYL-6-METHYLPYRIDINE-2-CARBALDIMINATO(1-)N,N′,O]TIN(IV) AND DIPHENYLCHLORO [N′-2-HYDROXYPHENYL-6-METHYL-PYRIDINE-2-CARBALDIMINATO(1-) N,N′,O]TIN(IV)

• Published in: Journal of coordination chemistry 2000-02, Vol.49 (4), p.269-280
• Main Authors: Teo, Soon-Beng, Teo, Hui-Shan, Chang, Seng-Teong, Yeow, Liang-Ming, Tiekink, Edward R. T.
• Format: Article
• Language: English
• Subjects: diphenylchloro[N′-2-hydroxyphenyl-6-methyl-pyridine-2-carbaldiminato(1 -)N,N′,O]tin(TV); N′-2-butyldichloro[N′-2-hydroxyphenyl-6-methylpyridine-2-carbaldiminato(l-N,N′,O)tin(IV); N′-2-hydroxyphenyl-6-methylpyridine-2-carbaldimine; organotin(IV) complexes; Tin(IV); X-ray structures
• ISSN: 0095-8972; 1029-0389
• DOI: 10.1080/00958970008022237

The reactions of N′-2-hydroxyphenyl-6-methylpyridine-2-carbaldimine (LH) with tin(IV) chloride and organotin(IV) chlorides result in the formation of the corresponding tin(IV) and organotin(IV) complexes in which LH behaves as a uninegative tridentate ligand coordinating to the central tin atom via an N,N,O donor set. Crystal structure determinations of two of the compounds, n-butyldichloro[N′-2-hydroxyphenyl-6-methylpyridine-2-carbaldiminato(l-)N,N′,O]-tin(IV) (BuSnCl 2 .L) and diphenylchloro[N′-2-hydroxyphenyl-6-methylpyridine-2-carbaldiminato(l-)N,N′,O]tin(IV) (Ph 2 SnCl.L), have been performed and both structures feature distorted octahedral geometries about the tin centres. Systematic differences in the Sn-ligand separations are rationalised in terms of the reduced Lewis acidity of tin in Ph 2 SnCl.L.