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. Author manuscript; available in PMC: 2014 Sep 17.
Published in final edited form as: Acc Chem Res. 2013 Jul 26;46(9):2127–2135. doi: 10.1021/ar4000482

Figure 1.

Figure 1

Spinning speed dependence of 1H MAS spectra of (a-c) Cu(DL-Ala)2•(H2O) and (d-f) Mn(acac)3 obtained at 1H NMR frequency of 400.2 MHz by π/2-pulse excitation. The spinning speed is indicated in the figure. The inset in (d) is the expanded center line region. The spectra were obtained at 1H frequency of 400.2 MHz with 1-pulse excitation and a rotor synchronous echo with 4 scans for each spectrum. The assignment for Cu(DL-Ala)2 and Mn(acac)3 was obtained from separate 2D 13C/1H correlation NMR experiments. The total experimental times were only (a-c) 18 ms and (d-f) 12 ms. The data were modified from ref. 17.