27Al MAS-NMR spectroscopy of glasses: new facilities by application of ‘SATRAS’

Spying with spins on messy materials: 60 Years of glass structure elucidation byNMRspectroscopy

“…In the same way, phosphate glasses have been analyzed by 31 P MAS‐NMR, where the corresponding P (n) distribution was found to be significantly more ordered. Important new insights were also obtained on the structural role of the intermediate oxide Al 2 O 3 in glasses as summarized in a review article from that period . Further scientific highlights were the detection and quantification of unusual coordination states (five‐ and six‐coordinate Al and Si) in glasses prepared under high‐pressure conditions and with special chemical compositions .…”

13C–27Al TRAPDOR and REDOR Experiments for the Detection of 13C–27Al Dipolar Interactions in Solids

“…2b(ii)) exhibit well structured complicated signals. With the help of an additional SATRAS experiment [20,21] (not shown) we determined a quadrupolar coupling constant of approximately 5 MHz and an asymmetry parameter of 0.5 ( Table 1). Simulations of the central transition MAS spectra taken at 7 and 11.7 T with these parameters reproduce the characteristic features of the spectra.…”

Rotor-synchronized acquisition of quadrupolar satellite-transition NMR spectra: practical aspects and double-quantum filtration

“…This increase in resolution for the specific case of spin I = 5/2 ST 1 satellite transitions has been widely exploited in the literature [7,9,10] and the method has been dubbed ''satellite-transition spectroscopy'' (SATRAS) [9]. It is possible to look at an individual satellite-transition spinning sideband to resolve, or partially resolve, distinct species which may be overlapped in the conventional central-transition lineshape.…”