The SPORT-NMR Software: A Tool for Determining Relaxation Times in Unresolved NMR Spectra
✍ Scribed by Marco Geppi; Claudia Forte
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 150 KB
- Volume
- 137
- Category
- Article
- ISSN
- 1090-7807
No coin nor oath required. For personal study only.
✦ Synopsis
A software package which allows the correct determination of individual relaxation times for all the nonequivalent nuclei in poorly resolved NMR spectra is described. The procedure used, based on the fitting of each spectrum in the series recorded in the relaxation experiment, should improve the analysis of relaxation data in terms of quantitative dynamic information, especially in anisotropic phases. Tests on simulated data and experimental examples concerning 1 H and 13 C T 1 measurement in a solid copolymer and 2 H T 1Z and T 1Q measurement in a liquid crystal are shown and discussed.
📜 SIMILAR VOLUMES
The incremental method of the chemical shift calculation in the 13 C NMR spectra of the methyl methacrylate-ethyl acrylate copolymer, PMMA/EA, has been applied to the -CH 2 carbons. A positive simulation of the DEPT sub-spectrum shows that it is possible to determine in this way the distribution of
## Abstract A simple procedure is presented for the determination of the asymmetry parameter of the electric field gradient, the quadrupole coupling constant, the second‐order quadrupolar shift and the isotropic chemical shift of quadrupolar nuclei with half‐integer spin directly from the experimen
## Abstract It is demonstrated that in a case where neither the proton nor the natural‐abundance ^13^C‐satellite spectra of a partially oriented molecule carry enough structural information, one can determine the entire molecular geometry by the combined use of several liquid crystals as solvents.