Chem Commun from Jan 2007

A simple NMR analysis of the Protonation equilibrium that accompanies aminoglycoside recognition: Dramatc alterations in the neomycin-B protonation state upon binding to a 23-mer RNA aptamer
Felix Freire, Igor Cuesta, Francisco Corzana, Julia Revuelta, Carlos González, Milos Hricovini, Agatha Bastida, Jesús Jiménez-Barbero and Juan Luis Asensio
Chem. Commun., 2007, 174 - 176, DOI: 10.1039/b611597g
Abstract: A complete characterisation of the protonation equilibrium that accompanies the molecular recognition of neomycin-B by a specific RNA receptor has been achieved by employing simple NMR measurements.


Only para-hydrogen spectroscopy (OPSY), a technique for the selective observation of para-hydrogen enhanced NMR signals
Juan A. Aguilar, Paul I. P. Elliott, Joaquín López-Serrano, Ralph W. Adams and Simon B. Duckett
Chem. Commun., 2007, 1183 - 1185, DOI:10.1039/b616307fAbstract: An NMR method is reported for the efficient removal of signals derived from nuclei with thermally equilibrated spin state populations whilst leaving, intact, signals derived from para-hydrogen induced polarisation (PHIP) through gradient assisted coherence selection.


Advancements in natural abundance solid-state 33S MAS NMR: characterizaton of transition-metal M=S bonds in ammonium tetrathiometallates
Hans J. Jakobsen, Anders R. Hove, Henrik Bildsoe, Jorgen Skibsted, Michael Brorson
Chem. Commun., 2007 DOI: 10.1039/b618497a
Abstract: We report the first ³³S chemical shift anisotropy (CSA) data as obtained from a combined determination of ³³S CSA and quadrupole coupling parameters utilizing the observation of both the ³³S (I = 3/2) central and satellite transitions in a natural abundance ³³S MAS NMR study aimed at characterizing the two important tetrathiometallates (NH₄)₂MoS₄ and (NH₄)₂WS₄.