³⁴S isotope effects on ³¹P chemical shifts in thiophosphate esters

Abstract

The 34S isotope effect on 31P chemical shifts was measured for 15 different alkyl thiophosphates. For the doubly bonded S a linear relationship exists between the magnitude of the isotope effect and the "P chemical shift. For the singly bonded S no such correlation was found.

A 6Li and 7Li MAS NMR study of the spinel-type manganese oxide LiMn2O4 and the rock salt-type manganese oxide Li2MnO3

“…Similar rotor heating has been noted by a number of other authors. [14][15][16] Spectra of the 6Li manganese oxides are preferred for determination of the isotropic shifts for a number of reasons. The line widths of the centre band of the 6Li resonances are narrower (ca.…”

Simple technique for temperature calibration of a MAS probe for solid‐state NMR spectroscopy

“…l(b)] has a single line at ca. 3.5 ppm (linewidth ca. 10 Hz) from the carbons of TTMSS, and a line at ca.…”

Novel 1,3-dichalcogeno-2-phospholanes with an annelated 1,2-dicarba-closo-dodecaborane(12) Unit

“…1). (Bjorholm, 1989) The P-organo derivatives 12a-d stay as monomers in solution for a sufficient length of time to measure all important NMR parameters. Any tendency for dimerization is more pronounced for E = S than for E = Se.…”