Issue 4, 2008

Columnar mesophases from half-discoid platinum cyclometalated metallomesogens

Abstract

A series of liquid crystals have been synthesized and studied based upon mononuclear ortho-platinated rod-like heteroaromatic and 1,3-diketonate ligands. The liquid crystalline properties of these molecules were investigated using polarized light optical microscopy, differential scanning calorimetry, single crystal X-ray diffraction, and powder X-ray diffraction. Increasing the number of alkyl chains attached to the 1,3-diketonate units resulted in a transition from lamellar (SmA) to hexagonal columnar phases (Colh). The 2-thienylpyridine units were previously unexplored in metallomesogenic complexes and these studies extend the utility of ortho-platinated 2-phenylpyridines and 2-thienylpyridines to produce columnar liquid crystalline phases. The platinum complexes all display photoluminescence and are of interest for electrooptical applications.

Graphical abstract: Columnar mesophases from half-discoid platinum cyclometalated metallomesogens

Supplementary files

Article information

Article type
Paper
Submitted
17 Sep 2007
Accepted
06 Nov 2007
First published
26 Nov 2007

J. Mater. Chem., 2008,18, 400-407

Columnar mesophases from half-discoid platinum cyclometalated metallomesogens

K. Venkatesan, P. H. J. Kouwer, S. Yagi, P. Müller and T. M. Swager, J. Mater. Chem., 2008, 18, 400 DOI: 10.1039/B714291A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements