X-{1{sup left}H, 19{sup left}F} triple resonance with a X-{1{sup left}H} CP MAS probe and characterisation of a 29{sup left}Si-19{sup left}F spin pair

摘要

An economic approach for implementing X-{1{sup left}H, 19{sup left}F} double-decoupling MAS NMR experiments with a conventional X-{1{sup left}H} dual-channel CP MAS probe is demonstrated. The parameters characterising the isolated 29{sup left}Si-19{sup left}F spin pair in an organosilicon compound R{sub}3SiF (R = 9-anthryl) are determined. In addition, we discuss the optimum choice of experimental parameters for determining all 29{sup left}Si-19{sup left}F spin-pair parameters from straightforward 29{sup left}Si MAS NMR spectra with only 1{sup left}H decoupling applied during acquisition.