Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Exciting Wide NMR Spectra of Static Solid Samples with Weak Radiofrequency Fields
 
research article

Exciting Wide NMR Spectra of Static Solid Samples with Weak Radiofrequency Fields

Carnevale, Diego  
•
Chinthalapalli, Srinivas  
•
Bodenhausen, Geoffrey  
2017
Zeitschrift Fur Physikalische Chemie-International Journal Of Research In Physical Chemistry & Chemical Physics

Trains of short pulses in the manner of delays alternating with nutations for tailored excitation' (DANTE) have been applied to the Pake patterns of protons of water molecules trapped in a static powdered sample of barium chlorate monohydrate. The spin dynamics in the course of such experiments have been investigated by means of numerical simulations and compared with the ideal refocusing that can be achieved under magic-angle spinning (MAS). Solid echoes yield essentially undistorted lineshapes, in contrast to direct excitation without refocusing that leads to severe dispersions of the phases because of inhomogeneous interactions such as homonuclear dipolar couplings and anisotropic chemical shifts. The selectivity of DANTE sequences allows one to access slices' of the Pake pattern that can be related to particular crystallite orientations. Single-crystal spectra can therefore be extracted from powder spectra. A similar behavior is expected for both dipolar and quadrupolar echoes.

  • Files
  • Details
  • Metrics
Loading...
Thumbnail Image
Name

zpch-2016-0808.pdf

Type

Publisher's Version

Version

Published version

Access type

openaccess

License Condition

Copyright

Size

849.3 KB

Format

Adobe PDF

Checksum (MD5)

c3344a9f2ac3e08926c61a4c65393191

Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés