crystallographic twofold axis. The mean S+–S+ distance is 2.124 A. The conformation of the eight-membered ring is a distorted chair–chair form. Very strong interactions were observed between S+ of dications and O atoms of counter anions. The average distance of S+···O is 2.724 A and colinear arrangements of O···S–S···O are formed with the central twofold axis. Other weak S···O interactions (2.903–3.153 A)
1,5-dithioniabicyclo[3.3.0]octane bis(trifluoromethanesulfonate) 的晶体结构已通过 X 射线方法确定,以阐明 dithonia dication 的结构。
水晶资料;C6S2H122+·2CF3SO3−, Fw=446.43, 正交, Pccb, a=16.775(2), b=9.893(3), c=19.592(3) A, V=3251(1) A3, Z=8, Dx=1.82
镁 m−3。晶体中有两个独立的标记 A 和 B,每个标记都有一个结晶双轴。平均 S+–S+ 距离为 2.124 A。八元环的构象是一种扭曲的椅子-椅子形式。在指示的 S+ 和抗衡阴离子的 O 原子之间观察到非常强的相互作用。S+...O的平均距离为2.724 A,O...S-S...O的共线排列以双轴为中心。其他弱 S···O 相互作用 (2.903-3.