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Solid-state NMR studies of interstitial phosphorus atoms in rhodium carbonyl clusters

✍ Scribed by João Rocha; Isabelle Orion; Jens Nahring; Brian T Heaton; Christian Fernandez; J.P Amoureux

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
118 KB
Volume
8
Category
Article
ISSN
0926-2040

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✦ Synopsis

Pure samples and as-prepared mixtures of Rh9 and Rh10 carbonyl clusters with interstitial P atoms have been studied quantitatively by 31P MAS and 1H-31P CP/MAS NMR. Information on the 31P chemical shift tensor of the Rh9 and Rh10 clusters has been derived from spinning sideband simulations. The chemical shift anisotropy is slightly larger in the Rh10 clusters (340-400 ppm) than in the Rh9 clusters (230-300 ppm), while the asymmetry parameters are similar (eta = 0.1-0.4). The results contribute to the understanding of the relationship between the shielding anisotropy and the structure of the cluster cavity.

📜 SIMILAR VOLUMES

Phosphorus-31 NMR studies of stabilized
Phosphorus-31 NMR studies of stabilized phosphorus ylids in the solid state
✍ Glenn H. Penner; William P. Power; Ronald D. Curtis; Roderick E. Wasylishen 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 572 KB

Phosphorus-31 powder NMR spectra and high-resolution MAS spectra have been obtained for a number of stabilized phosphorus ylids under conditions of high-power proton decoupling and cross-polarization. The 31P CP/MAS spectra are compared to those obtained from isotropic solutions. The variation of ch