Abstract C 28 H 21 NS, monoclinic, C 2/ c (no. 15), a = 21.7871(5) Å, b = 12.2870(2) Å, c = 18.6080(4) Å, β = 120.759(2)°, V = 4,280.58(17) Å 3 , Z = 8, R gt ( F ) = 0.0374, w R ref ( F 2 ) = 0.1064, T = 173(2) K.
Jiang et al. (Mon,) studied this question.