✦ LIBER ✦

Natural Abundance2H NMR Spectra of Molecules Oriented in Liquid Crystals

✍ Scribed by C.L. Khetrapal; K.V. Ramanathan; N. Suryaprakash; S. Vivekanandan

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 41 KB
Volume: 135
Category: Article
ISSN: 1090-7807
DOI: 10.1006/jmre.1998.1557

No coin nor oath required. For personal study only.

✦ Synopsis

It has been demonstrated that the natural abundance 2 H NMR spectra of molecules dissolved in liquid crystals can be obtained easily with the help of present-day high-resolution FT NMR spectrometers. Such spectra obtained in the case of benzene and chloroform dissolved in liquid crystals are reported. These experiments could serve as valuable aids for the analysis of the complex proton NMR spectra of oriented molecules.

📜 SIMILAR VOLUMES

The rα-structure of partially oriented 1

The rα-structure of partially oriented 1,2,3,5-tetrachlorobenzene determined from its 1H NMR spectra with natural-abundance 13C-satellites. A Demonstration of the Combined Use of Spectra Obtained from Molecules Dissolved in Several Different Liquid Crystals as Solvents for Spin Systems not having enough Dipolar Coupling Constants to Determine the Molecular Structure

✍ G. Dombi; J. Amrein; P. Diehl 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 322 KB

## 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.

Deceptive simplicity in NMR spectra of o

Deceptive simplicity in NMR spectra of oriented molecules

✍ P. Diehl; C. L. Khetrapal; U. Lienhard 📂 Article 📅 1969 🏛 John Wiley and Sons 🌐 English ⚖ 324 KB

ChemInform Abstract: Analysis of Natural

ChemInform Abstract: Analysis of Natural Abundance Deuterium NMR Spectra of Enantiomers in Chiral Liquid Crystals via 2D Auto-correlation Experiments.

✍ D. MERLET; B. ANCIAN; W. SMADJA; J. COURTIEU; P. LESOT 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB

Selective Detection of the Proton NMR Sp

Selective Detection of the Proton NMR Spectra of Molecules Containing Rare Spins at Natural Abundance in Liquid Crystalline Samples

✍ J.W. Emsley; D. Merlet; K.J. Smith; N. Suryaprakash 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 445 KB

It is shown that the proton NMR spectra of molecules containing rare spins at natural abundance dissolved in a liquid crystalline solvent can be obtained free from the strong lines from the spectrum of the abundant isotopomer by the 2D HSQC NMR experiment. The technique can also give the individual

ChemInform Abstract: Two-Dimensional Deu

ChemInform Abstract: Two-Dimensional Deuterium NMR Spectroscopy of Chiral Molecules Oriented in a Polypeptide Liquid Crystal: Applications for the Enantiomeric Analysis Through Natural Abundance Deuterium NMR.

✍ Denis Merlet; Bernard Ancian; Jacques Courtieu; Philippe Lesot 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 26 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

“Near magic angle” sample spinning in NM

“Near magic angle” sample spinning in NMR spectra of molecules oriented in individual and mixed liquid crystals of opposite diamagnetic anisotropies

✍ B.S. Arun Kumar; N. Suryaprakash; K.V. Ramanathan; C.L. Khetrapal 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 350 KB

The dynamics of the liquid crystal director in "near magic angle" sample spinning has been investigated in mesophases with positive and negative diamagnetic susceptibility anisotropies and their mixtures with near-zero macroscopic diamagnetic anisotropy. To this end the deuteron quadrupolar splittin