
Figure 2
(a) SMF map corresponding to the structure illustrated in Fig. 1(a); (b) Patterson map shifted by r_{S} (r_{S} is the sulfur position, chosen along the columnar peak highlighted by the yellow arrow). For simplicity, the y coordinate of the sulfur has been arbitrary fixed to the true one; (c,d) symmetry minimum function obtained according to equations (12) and (21), respectively. 