Proton and flourine NMR study of NH4PF6 at high pressures

Kaliaperumal, R. ; Srinivasan, R. ; Ramanathan, K. V. (1983) Proton and flourine NMR study of NH4PF6 at high pressures Chemical Physics Letters, 102 (1). pp. 29-32. ISSN 0009-2614

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000926...

Related URL: http://dx.doi.org/10.1016/0009-2614(83)80651-4

Abstract

The proton NMR spectrum of NH4PF6 at 77 K remains narrow even under a pressure of 14 kbar. The barrier for PF6- reorientation at 14 kbar is higher than the value at 1 bar. The asymmetry of the 19F spectrum at 77 K increases with pressure. The possibility of inequivalent chemical shifts of the 19F nuclei forming the octahedron around the phosphorus ion is discussed.

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