𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Solvent effects in NMR spectra induced by benzene in aromatic N-alkyl nitrones and O-alkyl oximes—III

✍ Scribed by N. E. Alexandrou; A. G. Varvoglis


Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
322 KB
Volume
3
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

NMR solvent effects induced by benzene on several N‐ and O‐alkyl oximes are reported. Both shielding and deshielding effects are observed and are accounted for by the geometry of the solute‐solvent ‘complex’. Good Hammett plots of solvent shifts for various types of protons are obtained.


📜 SIMILAR VOLUMES


Solvent effects in NMR spectra induced b
✍ N. E. Alexandrou; D. N. Nicolaides 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 283 KB

Proton chemical shifts as well as solvent shifts induced by benzene in several amidoximes are examined with respect to their configuration and are compared to the solvent shifts induced in benzalanilines. The geometry of the benzene-solute 'collision-complex' is also discussed.

Solvent effects in NMR spectra induced b
✍ N. E. Alexandrou; P. M. Hadjimihalakis; Miss E. G. Pavlidou 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 219 KB

## Abstract NMR solvent effects induced by benzene in methyl substituted benzoic esters can be effectively used in the interpretation of complex NMR spectra. A 1:1 collision complex between solvent and solute is proposed, supported by dilution curve experiments and the geometry of the ‘complex’ is

Inconsistent Solvent Shifts Caused by be
✍ Zeev Tashma 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 250 KB

## Replacement of chloroform by benzene as an NMR solvent for a series of (thio)phosphonothioamides results in an exceptionally wide range of shifts for the N-CH proton signals, from an upfield shift of approximately 1 ppm to a downfield shift of about 0.1 ppm, depending on the phosphonate esterif

Solvent effects in NMR spectra induced b
✍ N. E. Alexandrou; P. M. Hadjimihalakis 📂 Article 📅 1969 🏛 John Wiley and Sons 🌐 English ⚖ 206 KB

NMR solvent effects induced by aromatic solvents on some 1,4-dioxanes, 1,3-dioxolanes and on some sulphur analogue derivatives are reported. The shielding effect of the aromatic solvents is examined in respect to the structure of the solute.

CH···N and CH···O intramolecular hydroge
✍ Andrei V. Afonin; Igor A. Ushakov; Alexander V. Vashchenko; Dmitry E. Simonenko; 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 167 KB

## Abstract According to the ^1^H, ^13^C and ^15^N NMR spectroscopic data and DFT calculations, the __E__‐isomer of 1‐vinylpyrrole‐2‐carbaldehyde adopts preferable conformation with the __anti__‐orientation of the vinyl group relative to the carbaldehyde oxime group and with the __syn__‐arrangement