NMR, PGSE diffusion, and X-ray diffraction studies of lithium and potassium salts derived from diphenylphosphino(o-cyanophenyl)aniline and their crown ether complexes.
1H, 31P, and 7Li pulsed-gradient spin-echo (PGSE) diffusion and variable-temperature NMR results for THF solutions of the lithium and potassium salts derived from diphenylphosphino(o-cyanophenyl)aniline are reported and compared to the solid-state results obtained via X-ray diffraction studies. The solution results favor mononuclear salts, sometimes strongly ion paired, whereas the solid-state data reveal dinuclear species. The structures of the products from reactions of these salts with crown ethers are determined via PGSE and 1H Overhauser NMR methods.
Fernández
Ignacio
I
Laboratory of Inorganic Chemistry, ETHZ, Hönggerberg, CH-8093 Zürich, Switzerland.
Breher
Frank
F
Pregosin
Paul S
PS
Fei
Zhaofu
Z
Dyson
Paul J
PJ