as shown in Fig. 2(a-ii)–(c-ii). Note that these quadrupole parameters
are for 2H in static H2O, and have the large CQ and very small
g values. The parameters relevant to the EFG tensor of 2H averaged
by the fast 180 flip of H2O [65] are calculated as ðC0
Q ; g0Þ ¼ ð129 5 kHz;0:92 0:06