منابع مشابه
Observation of signal dips in iMQC study
Introduction Intermolecular multiple-quantum coherences (iMQCs) have generated much interest and controversy over past decades. One of the fierce controversies arises from so called correlation distance, defined as π/γGδ. Capuani and co-workers have done a lot of work on this aspect [1], and suggested that when the correlation distance was comparable to the averaged length-scale of sample heter...
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We describe a theoretical framework for understanding the heteronuclear version of the third spin assisted recoupling polarization transfer mechanism and demonstrate its potential for detecting long-distance intramolecular and intermolecular (15)N-(13)C contacts in biomolecular systems. The pulse sequence, proton assisted insensitive nuclei cross polarization (PAIN-CP) relies on a cross term be...
متن کاملHeteronuclear quantum gas mixtures
In this PhD tutorial article, we present experiments with quantum degenerate mixtures of fermionic and bosonic atoms in 3-dimensional optical lattices. This heteronuclear quantum gas mixture offers a wide range of possibilities for quantum simulation, implementation of condensed matter Hamiltonians, quantum chemistry and ultimately dense and quantum degenerate dipolar molecular samples. We show...
متن کاملHeteronuclear Zero-field Nmr
In zero-field NMR [ 1.21, a sample is subjected to a time-dependent magnetic field which cycles between a high value, Bo, and zero field. The B. field is useful for preparation and high-sensitivity detection of the spins. Evolution occurs for a variable time tl in zero field. This yields sharp crystal-like NMR spectra from polycrystalline samples, where ordinarily only powder patterns are obser...
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BACKGROUND AND PURPOSE Nuclear magnetic resonance (NMR) spectroscopy has become an important technique for tissue studies. Since tissues are in semisolid-state, their high-resolution (HR) spectra cannot be obtained by conventional NMR spectroscopy. Because of this restriction, extraction and high-resolution magic angle spinning (HR MAS) are widely applied for HR NMR spectra of tissues. However,...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance
سال: 2011
ISSN: 1090-7807
DOI: 10.1016/j.jmr.2011.01.018