Rapid and efficient enantiodifferentiation through frequency-selective pure-shift 1H NMR spectroscopy

“Enantiodifferentiation through Frequency-Selective Pure-Shift 1H Nuclear Magnetic Resonance Spectroscopy” by Laura Castañar, Míriam Pérez-Trujillo, Pau Nolis, Eva Monteagudo, Albert Virgili and Teodor Parella. ChemPhysChem,15 (2014) 854-857. DOI: 10.1002/cphc.201301130 A frequency-selective 1D 1H NMR experiment for the fast and sensitive determination of  chemical shift differences between overlapped resonances is proposed. The resulting fully homodecoupled 1H resonances appear as resolved … Continue reading Rapid and efficient enantiodifferentiation through frequency-selective pure-shift 1H NMR spectroscopy

Easy measurement of one-bond proton-carbon and geminal proton-proton coupling constants in diastereotopic methylene groups

“Straightforward measurement of individual 1J(CH) and 2J(HH) in diastereotopic CH2 groups” by Josep Saurí, Laura Castañar, Pau Nolis, Albert Virgili and Teodor Parella. Journal of Magnetic Resonance 242 (2014) 33–40. DOI: 10.1016/j.jmr.2014.02.003 The C-HA cross-peak corresponding to a diastereotopic CHAHB methylene spin system exhibits a characteristic 1:0:1 multiplet pattern along the indirect dimension of a ω1-coupled HSQC spectrum. Share this:Share

Pure Shift NMR & HOBS Experiments

SeRMN seminar Date:  Monday 16th December, 2013 Hour: 10 am Location:  SeRMN,  Facultats de Ciències i Biociències, C2/-135 Speaker:  Laura Castañar, SeRMN PhD Student & Teaching Assistant, Dept. of Chemistry. A NMR pulse scheme that provides full sensitivity in homodecouped band-selective NMR experiments is proposed. Share this:Share

Implementing homo- and heterodecoupling in region-selective HSQMBC experiments

“Implementing homo- and heterodecoupling in region-selective HSQMBC experiments” by Laura Castañar, Josep Sauri, Pau Nolis, Albert Virgili and Teodor Parella. Journal of Magnetic Resonance 238 (2014) 63-69. DOI: 10.1016/j.jmr.2013.10.022   A NMR method to enhance the sensitivity and resolution in band-selective long-range heteronuclear correlation spectra is proposed. The excellent in-phase nature of the selHSQMBC experiment allows that homonuclear and/or … Continue reading Implementing homo- and heterodecoupling in region-selective HSQMBC experiments

Full sensitivity and enhanced resolution in homodecoupled band-selective NMR experiments

“Full sensitivity and enhanced resolution in homodecoupled band-selective NMR experiments” by Laura Castañar, Pau Nolis, Albert Virgili and Teodor Parella. Chem. Eur. J. 2013, 19, 17283-17286. DOI: 10.1002/chem.201303235   A NMR pulse scheme that provides full sensitivity in homodecouped band-selective NMR experiments is proposed. Share this:Share

Simultaneous multi-slice excitation in Spatially encoded NMR experiments

“Simultaneous multi-slice excitation in Spatially encoded NMR experiments” by Laura Castañar, Pau Nolis, Albert Virgili and Teodor Parella. Chem. Eur. J. 2013, 19, 15472–1547. DOI: 10.1002/chem.201303272 A novel strategy to enhance the experimental sensitivity in spatially encoded NMR experiments has been developed. Share this:Share

Ultrafast 2D NMR

SeRMN seminar Date:  Friday 26th April, 2013 Hour: 10 am Location:  SeRMN,  Facultats de Ciències i Biociències, C2/-135 Speaker:  Laura Castañar, SeRMN PhD Student & Teaching Assistant, Dept. of Chemistry. Share this:Share