“…For sulfone atom S1, formally S VI , the S-C and S O bond lengths and the O S O and C-S-C angles are all in normal ranges (Table 1), and compare well with those observed in other related compounds (e.g. Podlaha et al, 1986;Julia et al, 1986;Mo & Berg, 1982;Hauback & Mo, 1990). Least-squares plane calculations show that the dihedral angle between the phenyl (C1-C6) and benzene (C7-C12) planes is 73.0 (2) , and that atoms O3 and O4 are almost coplanar with the benzene ring.…”