✦ LIBER ✦

The Contact Contribution in the Lanthanoid-Induced Shift of 13CO-NMR Signals

✍ Scribed by Prof. Dr. Horst Kessler; Dipl.-Chem. Michael Molter

Publisher: John Wiley and Sons
Year: 1974
Tongue: English
Weight: 214 KB
Volume: 13
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.197405371

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Epoxidation-induced shifts in the carbon

Epoxidation-induced shifts in the carbon-13 NMR spectra of steroids: Lanostane derivatives

✍ Jacek Martynow; Zdzisław Paryzek 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 463 KB 👁 1 views

The ' ' C chemical shifts of triterpenoidal olefins and epoxides related to lanosterol are described and discussed. The epoxide function located in the central part of the tetracyclic steroidal skeleton allows the evaluation of epoxidation-induced shifts (EIS) for several carbons. The most character

Long range substituent-induced chemical

Long range substituent-induced chemical shifts in the 13C NMR spectra of N-benzylidenebenzylamines

✍ John E. Arrowsmith; Michael J. Cook; David J. Hardstone 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 191 KB

## Abstract Carbon‐13 chemical shifts for __N__‐benzylidenebenzylamines are affected by substituents up to eleven bonds away from the substituent group. The data correlate well with Hammett constants.

Parahydrogen-induced polarization in the

Parahydrogen-induced polarization in the presence of NMR shift reagents

✍ Claudia Ulrich; Joachim Bargon 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 75 KB

In situ NMR spectroscopy using parahydrogen (p-H 2 ) is a powerful tool to study transition metalcatalyzed hydrogenations because the signals are enhanced by several orders of magnitude. This NMR technique is called parahydrogen-induced polarization (PHIP). Frequently, in the course of such studies,

The solvent-induced shift in the proton

The solvent-induced shift in the proton NMR of some quinolizidine substituents

✍ Robert T. Lalonde; Thomas N. Donvito; Amy I-M. Tsai; Chunfook Wong 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 240 KB

## Abstract The proton chemical shift values for the methyl groups in the nine monomethylquinolizidines are determined in deuterochloroform and benzene solutions. This solvent change results in the shielding of all the methyl groups except those in 1(a)‐and 3(a)‐methylquinolizidine which become des

Use of the Eu(fod)3-Induced Shift for De

Use of the Eu(fod)3-Induced Shift for Determination of the Complexation Site and for Signal Assignment in the 13C-NMR Spectra of Protected Dipeptides

✍ Prof. Dr. Horst Kessler; Dipl.-Chem. Michael Molter 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 220 KB 👁 2 views

Carbon-13 NMR lanthanide induced shifts

Carbon-13 NMR lanthanide induced shifts and T1 studies of the conformation of friedelin

✍ Mohammed I. M. Wazeer 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 329 KB 👁 1 views