para-azoxyanisole
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| Para-Azoxyanisole | |
|---|---|
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| IUPAC name | 1-methoxy-4-[(4-methoxyphenyl)- NNO-azoxy]benzene |
| Identifiers | |
| CAS number | [1562-94-3] |
| SMILES | COc2ccc(\N=[N+](/[O-])c1ccc(OC)cc1)cc2 |
| Properties | |
| Molecular formula | C14H14N2O3 |
| Molar mass | 258.27 g/mol |
| Melting point |
114.9 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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para-Azoxyanisole (PAA) is a zwitterionic liquid crystal. In a solid state, it appears as a white powder, but when heated it forms a liquid crystal. As one of the first known and most readily prepared liquid crystals,[1] p-azoxyanisole has been played an important role in the development of liquid crystal displays.[2]
[edit] References
- ^ Shao, Y.; Zerda, T. W. (1998). "Phase Transitions of Liquid Crystal PAA in Confined Geometries". Journal of Physical Chemistry B 102 (18): 3387-3394.
- ^ Liquid Gold: The Story of Liquid Crystal Displays and the Creation of an Industry, Joseph A. Castellano, ISBN 978-9812389565
