학술논문
Highly Dichroic Metallomesogen of Dinuclear Platinum Complex: Synthesis and Liquid Crystal and Photophysical Properties
Document Type
Article
Author
Source
The Journal of Physical Chemistry - Part C; March 2012, Vol. 116 Issue: 9 p5908-5914, 7p
Subject
Language
ISSN
19327447; 19327455
Abstract
A novel dinuclear platinum complex of (biC12ppy-fl)Pt2C12DBM)2with liquid crystal luminescent property has been prepared, as well as its liquid crystal, optophysical properties and hole mobility have been studied, where biC12ppy-fl is 6,6′-[4,4′-(9,9-didodecyl-9H-fluorene-2,7-diyl)bis(1,4-phenylene)]bis[3-(dodecyloxymethyl)pyridine] and C12DBM is 1,3-bis[4-(dodecyloxy)phenyl]propane-1,3-dione. This dinuclear platinum complex displayed a smectic mesophase and excellent opto-physical properties. Compared to the reported mononuclear platinum complex of (CnROppy)Pt(acac) (R = H, F), this dinuclear platinum complex exhibited higher emission quantum yield and higher stability, as well as higher hole mobility of 8.4 × 10–4cm2/(V s). Moreover, a highly polarized ratio of 10.3 was obtained for the aligned film of (biC12ppy-fl)Pt2(C12DBM)2on the aligned polyimide at room temperature.