title: Inhomogeneity-free heteronuclear iMQC.
abstract: Intermolecular dipolar interactions between proton and carbon spins can be used to indirectly detect carbon spectra with high sensitivity. In this communication, we present a modified sequence that, in addition to the high sensitivity of heteronuclear intermolecular multiple quantum coherence (iMQC) experiments, retains the line narrowing capability characteristic of homonuclear zero-quantum coherences. We demonstrate that this sequence can be used to obtain high resolution (13)C spectra in the presence of magnetic field inhomogeneities, both for thermal and hyperpolarized samples, and discuss applications to water-hyperpolarized carbon imaging.
authors.affiliation: Department of Chemistry, Duke University, Durham, NC 27708, USA. tamara.branca@duke.edu
authors.forename: Rosa T
authors.initials: RT
authors.lastname: Branca
authors.forename: Elizabeth R
authors.initials: ER
authors.lastname: Jenista
authors.forename: Warren S
authors.initials: WS
authors.lastname: Warren
mesh_terms: D000465:Algorithms; D000818:Animals; D002250:Carbon Radioisotopes; D004574:Electromagnetic Fields; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D011789:Quantum Theory; D012815:Signal Processing, Computer-Assisted; D014054:Tomography
chemical_list: D002250:Carbon Radioisotopes