Solid-state31P magnetic resonance shifts and fine structure

Autor:	E.R. Andrew, V. T. Wynn
Rok vydání:	1966
Předmět:	Phosphorus Chemical shift Inorganic chemistry Isotropy Analytical chemistry chemistry.chemical_element Phosphorus pentachloride Rotation Spectral line chemistry.chemical_compound Pyrophosphoric acid General Energy chemistry Crystallite
Zdroj:	Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 291:257-266
ISSN:	2053-9169 0080-4630
Popis:	The31P chemical shifts and spectral structure have been determined in a number of solid phosphorus compounds by means of the rapidly rotating specimen technique. The theory is first given of the narrowing of dipolar-broadened nuclear magnetic resonance spectra by rapid rotation of solid specimens about an axis inclined at an angle 54° 44' to the applied field. The effect of rotation on other nuclear interactions is discussed, and in particular it is shown that the chemical shift tensor is effectively replaced by its isotropic mean value. The method has been applied to the measurement of31P chemical shifts in polycrystalline phosphorus compounds: phosphorus sesquisulphide, tetraphosphorus pentasulphide, phosphorus pentasulphide, pyrophosphoric acid, phosphorus pentachloride and zinc phosphide. Four compounds showed two or more chemically shifted lines. The shifts determined are discussed and are compared with those for related compounds studied in the liquid state.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c48b96dd81833569a0845aafb05bfdc0 https://doi.org/10.1098/rspa.1966.0093 Zobrazit plný text záznamu