𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Coordination-site exchange and solid-state 13C NMR studies of bis(oxalato)dioxovanadate(V) ion

✍ Scribed by Man-Ho Lee; Kjeld Schaumburg

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
376 KB
Volume
29
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Activation parameters were determined for the exchange between the two types of carboxylate groups which are cis and trans to the VO bonds in the bis(oxalato)dioxovanadate(V) ion, [VO~2~(C~2~O~4~)~2~]^3−^. Kinetic data were obtained from the ^13^C NMR spectra at eleven temperatures between 268 and 306 K by the total line‐shape method. The coordination‐site exchange mechanism, involving chelate ring opening and closing in the ion, is proposed. The solid‐state ^13^C NMR spectra of the oxalato complexes, (NH~4~)~3~[VO~2~(C~2~O~4~)~2~]·2H~2~O and K~3~[VO~2~(C~2~O~4~)~2~]·3H~2O~, are also discussed in relation to the structures.

📜 SIMILAR VOLUMES

A 13C solid-state NMR study of ion-excha
A 13C solid-state NMR study of ion-exchange resins derived from natural polysaccharides
✍ Keith R. Morgan; Jacqueline A. Hemmingson; Richard H. Furneaux; Roger A. Stanley 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 660 KB

Several ion-exchange resins and resin precursor materials formed from natural polysaccharides have been examined by solid-state NMR spectroscopy. NMR spectra of the dry resin contained broad, featureless bands due to the polysaccharide backbone of the resin and additional broad bands due to attached

13C and 31P solid-state NMR studies of b
13C and 31P solid-state NMR studies of bis(dialkoxythiophosphoryl) disulfides
✍ Po-Jen Chu; Marek J. Potrzebowski 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 584 KB

## Abstract The principal elements of the chemical shift tensors for the phosphorus atoms in three bis(dialkoxythiophosphoryl) disulfides were determined from both static and magic angle spinning NMR spectra, using the intensities of the peaks in the spinning sidebands relative to those of the cent

Contact vs solvent-separated ion pairs:
Contact vs solvent-separated ion pairs: a 7Li and 13C solid-state NMR study of organolithium compounds
✍ Martin Kühnen; Harald Günther; Jean-Paul Amoureux; Christian Fernandéz 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 237 KB

## Abstract ^7^Li and ^13^C solid‐state magic angle spinning NMR spectra were measured for three benzyllithium systems, α‐(phenylthio)benzyllithium, α‐phenyl‐α‐lithiodithiane and α‐(trimethylsilyl)benzyllithium, stabilized by different ligands (THF, PMDTA, TMEDA, [12]crown‐4). They were analyzed wi