Article ID Journal Published Year Pages File Type
9594299 Solid State Nuclear Magnetic Resonance 2005 6 Pages PDF
Abstract
It is shown that straightforward double-quantum filtered 1H MAS NMR experiments yield spectral lineshapes that permit to estimate the minimum number of 1H spins in a cluster. The approach may offer an alternative to multiple-quantum experiments for the characterisation of 1H 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 1H MAS NMR experiments on partially deuterated maleic acid are reported as well as numerical simulations.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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