English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
 Local TagsRelease HistoryDetailsSummary
  High-resolution 1H, 2H, and 13C solid-state NMR of dimethylmalonic acid. Detection of a new mode of hydrogen motion

Scheubel, W., Zimmermann, H., & Haeberlen, U. (1988). High-resolution 1H, 2H, and 13C solid-state NMR of dimethylmalonic acid. Detection of a new mode of hydrogen motion. Journal of Magnetic Resonance, 80(3), 401-416. doi:10.1016/0022-2364(88)90237-5.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-AE3B-D Version Permalink: https://hdl.handle.net/21.11116/0000-0000-B967-C
Genre: Journal Article
Alternative Title : High−Resolution 1H, 2H, and 13C−Solid−State NMR of Dimethylmalonic Acid. Detection of a New Mode of Hydrogen Motion

Files

show Files
hide Files
:
JMagnReson_80_1988_401.pdf (Any fulltext), 928KB
 
File Permalink:
-
Name:
JMagnReson_80_1988_401.pdf
Description:
-
OA-Status:
Visibility:
Restricted (Max Planck Institute for Medical Research, MHMF; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Creators

show
hide
 Creators:
Scheubel, W., Author
Zimmermann, Herbert1, 2, 3, 4, Author           
Haeberlen, Ulrich5, Author           
Affiliations:
1Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497705              
2Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              
3Zimmermann Group, Max Planck Institute for Medical Research, Max Planck Society, ou_1497749              
4Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497712              
5Research Group Prof. Dr. Haeberlen, Max Planck Institute for Medical Research, Max Planck Society, ou_1497739              

Content

show
hide
Free keywords: -
 Abstract: The proton and carbon shielding and the carboxyl deuteron quadrupole coupling tensors were measured in single crystals of dimethylmalonic acid. For the first time sufficient resolution has been achieved in solid-state multiple-pulse proton NMR to allow tracing out a methyl group proton shielding tensor. Its anisotropy is only 1.6 ppm. At room temperature only half as many carboxyl proton and deuteron resonances are observed as crystal symmetry predicts. This is the consequence of a novel hydrogen exchange process within dimeric units, -COOH-HOOC-. Lineshape analysis of deuteron spectra yields the temperature dependence of the rate k of the exchange process. Its activation energy is 66 kJ/mol; k(T = 281 K) = 5 × 104, s−1. A flip of the whole dimeric unit followed by a rapid concerted jump of the hydrogens along strongly asymmetric hydrogen bonds is thought to be the most plausible sequence of events. This hypothesis might be subjected to a test by 17O NMR.

Details

show
hide
Language(s): eng - English
 Dates: 1987-11-061988-03-252004-06-291988-12
 Publication Status: Issued
 Pages: 16
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/0022-2364(88)90237-5
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Magnetic Resonance
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: San Diego [etc.] : Academic Press
Pages: - Volume / Issue: 80 (3) Sequence Number: - Start / End Page: 401 - 416 Identifier: ISSN: 0022-2364
CoNE: https://pure.mpg.de/cone/journals/resource/954922651175_1