A new route to aryltin compounds: orthometallation of Schiff's bases by tin(IV) halides: crystal and molecular structure of N-methyl-ortho-trichlorostannyldiphenyl-methyleneamine, 2-Cl3SnC6H4C(Ph)NMe

Abstract

Reactions between tin(IV) halides SnX₄ and Schiff's bases R′C₆H₄C(R″)NR‴ in boiling toluene at molar ratios of ca. 1 : 2 afford immonium salts [R′C₆H₄C(R″)NHR‴]₂SnX₆ and orthometallated materials X₃S[graphic omitted]R‴, exemplified by Cl₃S[graphic omitted]Me, the structure of which, established by an X-ray crystallographic study, has distorted trigonal bipyramidal metal co-ordination, with axial N → Sn and Cl–Sn bonds of length 2.284(4) and 2.401(2)Å respectively, and equatorial C–Sn and Cl–Sn bonds of lengths 2.115(3), 2.335(1), and 2.323(2)Å.