There are many helixes of dihedral Angle, and the whole skeleton forms a large helix in the structure of the rotatory isomer.
其结构中包含许多二面角螺旋，而且具有旋光性的异构体，其结构的整体骨架也构成一个大的螺旋。
2
The coordination compound provided by the invention has a single structure without any isomer, and is characterized in defined structure and easy separation.