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  • Title: Double-quantum filtered 1H MAS NMR spectra.
    Author: Bechmann M, Foerster H, Maisel H, Sebald A.
    Journal: Solid State Nucl Magn Reson; 2005 May; 27(3):174-9. PubMed ID: 15681134.
    Abstract:
    It is shown that straightforward double-quantum filtered (1)H MAS NMR experiments yield spectral lineshapes that permit to estimate the minimum number of (1)H spins in a cluster. The approach may offer an alternative to multiple-quantum experiments for the characterisation of (1)H spin clusters of moderate size. The duration of the double-quantum excitation period has to be chosen suitably, it is necessary to find a practical compromise between optimum double-quantum filtration efficiency and optimum information content of the spectral lineshapes. Some (1)H MAS NMR experiments on partially deuterated maleic acid are reported as well as numerical simulations.
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