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Updated: Jan 5, 2026

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Lead(II) Siloxides
Adrian-Alexandru Someşan1, Erwann Le Coz2, Ciprian Ionuţ Raţ1
1Supramolecular Organic and Organometallic Chemistry Centre, Chemistry Department, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Cluj-Napoca, 400028, Romania.
Abstract:
Although PbII -siloxides have been known until now to decompose to oxoclusters, here [{ROF }PbOSi(SiMe3 )3 ] (ROF =fluoroalkoxide) and, most importantly, [Pb2 {OSi(SiMe3 )3 }{μ2 -OSi(SiMe3 )3 }3 ], are presented. The unusual bonding pattern in the latter thermally stable dinuclear complex was investigated by crystallographic and computational methods. Its stability is much higher than that of the simple, yet elusive "[Pb(OSiPh3 )2 ]", for which decomposition pathways towards [Pb4 (μ4 -O)(μ2 -OSiPh3 )6 ] have been clearly established.
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