𝔖 Bobbio Scriptorium
✦   LIBER   ✦

14N NMR of amminecobalt(III) compounds

✍ Scribed by Pauli Kofod

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
107 KB
Volume
41
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Directly detected ammine ^14^N NMR chemical shifts of 20 amminecobalt(III) compounds are reported. The coordination shifts, δ~CS~ = δ~coord~ − δ~free~, are in all cases negative and range from −4.4 ppm for the trans ammine ligand in [Co(NH~3~)~5~(CH~3~)]^2+^ to −73.6 ppm for the trans ammine ligand in [Co(NH~3~)~5~(F)]^2+^. Among the ligands studied, the NO~2~^−^ ligand is unique in that it exerts a significant cis influence. The regularity in trans or cis influences upon the ammine nitrogen chemical shifts provides a basis for assignments in cases where this cannot be deduced from intensity ratios. Copyright © 2003 John Wiley & Sons, Ltd.

📜 SIMILAR VOLUMES

NMR coupling of 13C and 19F with 14N in
NMR coupling of 13C and 19F with 14N in nitro compounds
✍ Michael D. Coburn; Carlyle B. Storm; Donald W. Moore; Thomas G. Archibald 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 426 KB

## Abstract The ^13^C and ^14^N NMR spectra of a variety of highly nitrated aliphatic, aromatic and heterocyclic compounds were obtained. The proton decoupled ^13^C peaks of the nitro‐substituted carbons in most of these compounds were split into the multiplets expected for coupling with spin 1 nuc

Synthesis of 14C-labelled compounds. III
Synthesis of 14C-labelled compounds. III. Synthesis of N-Nitroso-O,N-14C-dimethyl-hydroxylamine
✍ Kusum N. Arjungi; Friedrich-Wilhelm Krüger; Manfred Wiessler 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 French ⚖ 258 KB 👁 1 views

## Abstract C^14^‐labelled O,N‐dimethylhydroxyurethane is synthesized from C^14^‐labelled dimethylsulfate and N‐hydroxy‐urethane. It is further converted without purification into O,N‐^14^‐C‐dimethyl‐hydroxylammoniumchloride, which was then nitrosated with sodiumnitrite in acidic medium to give N‐N

14N NMR single-crystal study of hexameth
14N NMR single-crystal study of hexamethylenetetramine
✍ Young-Sik Kye; Gerard S. Harbison 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 161 KB 👁 1 views

The 14N NMR spectrum of hexamethylenetetramine (HMT) is dominated by the very large electric quadrupole coupling constant of 4.412 MHz at room temperature. Nonetheless, by carefully accounting for this interaction one can subtract its Ðrst-and second-order e †ects on the spectrum, leaving the much s

14N NQR study of nicotinamide and relate
14N NQR study of nicotinamide and related compounds
✍ J. Seliger; V. Žagar 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 184 KB

## Abstract ^14^N nuclear quadrupole resonance (NQR) frequencies have been measured in picolinamide, nicotinamide, isonicotinamide, 2,6‐pyridine dicarboxamide, and acetamide by double resonance. The ^14^N NQR spectra in picolinamide, nicotinamide, isonicotinamide, and 2,6‐pyridine dicarboxamide sho

14N and 35Cl NQR studies of organophosph
14N and 35Cl NQR studies of organophosphorus compounds
✍ D. J. Osokin; I. A. Safin; I. A. Nuretdinov 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 352 KB

lPN and 35Cl NQR spectra have been investigated for 24 organophosphorus compounds using a pulse technique. The electron populations of the nitrogen lone pair orbital and the N-P bond are calculated according to the Townes and Dailey method. The experimental data are interpreted assuming a partial do