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Updated: May 14, 2026

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
29Si-1H IMPACT HMBC: a suitable tool for analyzing silylated derivatives
Jonathan Farjon1, Audrey Giros, Sandrine Deloisy
1Equipe de RMN en milieu orienté, CNRS, Univ. Paris-Sud, Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR 8182, Orsay, F-91405, France. jonathan.farjon@u-psud.fr
Abstract:
A modified version of the IMPACT heteronuclear multiple bond correlation (HMBC) has allowed the characterization of an organosilane and a tetrasilylated yttrium complex. With the help of this sequence, an average gain in sensitivity close to 2 has been obtained compared with the standard HMBC experiment for disilanes as well as for yttrium complexes containing silylated ligands. This modified version of this long-range correlation experiment opens the way for following kinetics in the range of a fraction of a minute and to study by NMR low concentrated samples and low abundant nuclei.
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