A cholesteric liquid crystal. The liquid crystal includes a metal acetylide, of which the metal is a square, planar transition metal. The metal acetylide includes first and second acylphosphine ligands and first and second phenyl acetylene ligands. Each of the first and second phenyl acetylene ligands have a meta- or para-substituent, which are selected from the group consisting of H, F, CN, OCH
3
, C≡C—C
6
H
5
,(COO—C
34
H
50
O
2
), and COO—C
5
H
10
—C))—C
34
H
50
O
2
.
一种胆甾液晶。该液晶包括一个
金属
乙炔,其中
金属是一个方形、平面的过渡
金属。
金属
乙炔包括第一和第二酰基
膦配体和第一和第
二苯基乙炔配体。第一和第
二苯基乙炔配体中的每一个都有一个选自H、F、CN、OCH3、C≡C—
C6H5、(COO—
C34H50O2)和COO—
C5H10—C))— 的甲基或对位取代基。