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Inorganics 2014, 2(3), 433-454; doi:10.3390/inorganics2030433

Gold Liquid Crystals in the XXI Century

IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, E-47071 Valladolid, Spain
Received: 10 June 2014 / Revised: 16 July 2014 / Accepted: 17 July 2014 / Published: 6 August 2014
(This article belongs to the Special Issue Frontiers in Gold Chemistry)

Abstract

Since the first gold liquid crystal was described in 1986, much effort has been done to prepare new compounds bearing this property. The review deals with the last results obtained in this new century. Gold(I) has a strong affinity to give linear co-ordination and metal-metal interactions, which produce a rich supramolecular chemistry, and can promote the behavior as liquid crystal. Therefore, most liquid crystals are based on rod-like gold(I) compounds, while gold(III) liquid crystals are scarce. Calamitic and discotic mesogens have been reported, as well as chiral liquid crystals. Weak interactions such as H-bonds have also been used to obtain gold mesogens. Some of them exhibit additional properties, such as color, luminescence, and chirality. Luminescence has been reported, not only in the solid state or in solution, but also in the mesophase. This is relevant for applications in LEDs (Light Emitting Diodes), information storage, and sensors. View Full-Text
Keywords: gold; liquid crystals; metallomesogens; isocyanide; calamitic; discotic; luminescence gold; liquid crystals; metallomesogens; isocyanide; calamitic; discotic; luminescence
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Bardají, M. Gold Liquid Crystals in the XXI Century. Inorganics 2014, 2, 433-454.

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