“…11 To date, the EFG and NQCC values of a large number of nuclides have been theoretically studied in the literature, mainly focusing on Fe. 12–33 For systems containing heavy atoms, such as Bi, 6,34–39 U, 40,41 and Np, 42 relativistic effects become crucial and have been taken into account through various approximate or (nearly) exact methodologies. In the early 1970s, Desclaux and Bessis presented the first four-component Dirac calculation of EFGs.…”