Synthesis and Spectroscopic Characterisation of the First Series of Heterohimetallic Butyltin(IV) Derivatives Based on N—(1-hydroxyethyl) Salicylaldiminate Moieties

Abstract

Interaction of BuSn(OP0 3 with two equivalents of N-(l-hydroxyethyl) salicylaldimine (LH 2 ) yields homometallic complex [BuSn(L)(LH)] (1), (where L = 0C 6 H 4 CH=NCH 2 CH 2 0~ and LH = ~OC 6 H 4 CH=NCH 2 CH 2 OH). Reactions of (1) with different metal isopropoxides M(OPr'), (where Μ = Al (χ = 3) (2), Μ = Ga (χ =3) (3), Μ = Ti (χ = 4) (4), and Μ = Nb (χ = 5) (5)) and Ge(OEt) 4 afford heterobimetallic derivatives of the formulae [BuSn(L) 2 M(OPr i ). t _ 1 ] and [BuSn(L) 2 Ge(OEt) 3 ] (6), respectively. Equimolar reaction of (1) with Al(L)(OPr') under refluxing conditions yields [BuSn(L) 3 Al] (7). Treatment of (2) with two equivalents of acetylacetone (acacH) produces [BuSn(L) 2 Al(acac) 2 ] (8). All of these orange solid complexes have been characterised by spectroscopic [IR, and NMR ('Η, 119 Sn, and 27 AI)] studies, elemental analyses, and molecular weight measurements.

Assembling Heterometals through Oxygen: An Efficient Way To Design Homogeneous Catalysts

“…Molecular compounds containing the Al−O−Sn moiety are not very well documented. The reported Al and Sn mixed metallic alkoxides and oxides are dominated by compounds with Sn(IV) . Sn(II) and aluminum mixed metallic alkoxides and oxoalkoxides are rarely known, and no pure mixed metallic oxide of Al and Sn(II) was previously reported.…”