Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
NMR spectra of as-synthesized ITQ-40: 99 MHz 1H-to-29Si CPMAS (Bottom) and 29Si MAS (Bloch decay, Top). (Inset) An overlay of the CPMAS and MAS-NMR spectra. About 9.6% of the total signal in the MAS spectrum is in a region where silanol species are observed. These regions are preferentially enhanced in the CPMAS spectrum.
