title: NMR properties of sedimented solutes.
abstract: This perspective paper is intended to give some insights into the recently proposed technique of NMR of solutes sedimented by ultracentrifugation in a rotor used for solid state NMR experiments. Sedimented "states" correspond to molecules with very little reorientational capability in extremely concentrated solutions. They provide solid state NMR spectra comparable in quality with those of the best microcrystalline samples. Here we report some experiments to look for chemicals which affect the properties of the sediment, and we show that it is possible to fill the rotor in a true ultracentrifuge and then record the spectra. The latter possibility opens new horizons for NMR of sedimented systems.
authors: Magnetic Resonance Center (CERM), University of Florence, Sesto Fiorentino (FI), Italy. ivanobertini@cerm.unifi.it
authors: Ivano
authors: I
authors: Bertini
authors: Frank
authors: F
authors: Engelke
authors: Claudio
authors: C
authors: Luchinat
authors: Giacomo
authors: G
authors: Parigi
authors: Enrico
authors: E
authors: Ravera
authors: Camilla
authors: C
authors: Rosa
authors: Paola
authors: P
authors: Turano
mesh_terms: D000818:Animals; D001052:Apoferritins / Q000737:chemistry; D001120:Arginine / Q000737:chemistry; D002417:Cattle; D005990:Glycerol / Q000737:chemistry; D008962:Models, Theoretical; D019906:Nuclear Magnetic Resonance, Biomolecular; D011506:Proteins / Q000737:chemistry*; D012710:Serum Albumin, Bovine; D012996:Solutions / Q000737:chemistry*; D014461:Ultracentrifugation
chemical_list: D011506:Proteins; D012996:Solutions; D012710:Serum Albumin, Bovine; D001052:Apoferritins; D001120:Arginine; D005990:Glycerol