Glassy cholesteric liquid crystalline metal acetylides

Patent metadata

Field	Value
Publication number	US-8968599-B2
Application number	US-201313780153-A
Country	US
Kind code	B2
Filing date	Feb 28, 2013
Priority date	Feb 28, 2013
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

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 .

First claim

What is claimed is:

1. A cholesteric liquid crystal comprising:
a metal acetylide having first and second acyl-phosphine ligands, wherein the metal is a square, planar transition metal;
a first phenyl acetylene ligand having a first meta-or para-substituent; and
a second phenyl acetylene ligand having a second meta-or para-ubstituent,
wherein the first meta-or para-substituent of the first phenyl acetylene ligand is selected from the group consisting of cholesterol ester (CO…

Assignees

• Us Air Force

Inventors

• Cooper Thomas M
• Ziolo Ronald F
• Burke Aaron R
• Glushchenko Anatoliy V

Classifications

• C09K19/36 Primary

  Chemistry & Metallurgy · mapped topic

• B32B15/00

  Operations & Transport · mapped topic

• B32B15/04

  Operations & Transport · mapped topic

• C07F15/0086 Primary

  Chemistry & Metallurgy · mapped topic

• B32B3/263

  Operations & Transport · mapped topic