C..H19N2I, Mr=266.24, monoclinic, space group P2 1/n, a=6.298, b=7.659. c=32.579 A,β=101.54° (from Syntex Pl diffractometer), Z=4, Do=1.59, Dx=1.58(2)gm cm¯8 (by flotation), m.p. 253℃. The compound was solved primarily by heavy atom method. The final R value was 0.067.
中國化學會會誌=Journal of the Chinese Chemical Society 26(2)，頁57-59