ACR - Accounts of Chemical Research - up to Dec. 2007, vol. 40, iss 12.

ACR - Accounts of Chemical Research - up to Dec. 2007, vol. 40, iss 12.

Acc. Chem. Res., 40 (9), 738–746 10.1021/ar600030j
Web Release Date: April 27, 2007
Copyright © 2007 American Chemical Society

Advanced Solid State NMR Techniques for the Characterization of Sol–Gel-Derived Materials

Christian Bonhomme,* Cristina Coelho, Niki Baccile, Christel Gervais, Thierry Azaïs, and Florence Babonneau
Received November 22, 2006

Abstract:

A large array of advanced solid state NMR (nuclear magnetic resonance) techniques is presented in the frame of the structural characterization of sol–gel-derived materials. These techniques include the pertinent detection of 17O chemical shifts, MAS (magic angle spinning) J spectroscopy in the solid state, high-resolution 1H spectroscopy, heteronuclear and homonuclear D (dipolar)-derived multidimensional correlation experiments, and first-principles calculations of NMR parameters. This spectroscopic approach is suitable for the in-depth description of multicomponent sol–gel derivatives, crystalline and amorphous biocompatible silicophosphates, Al–O–P clusters, and templated porous materials. It offers unique perspectives for the description of the hybrid interfaces in terms of chemical and spatial connectivities.