Synthesis and characterization of cross-conjugated cruciforms with varied functional groups

Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.tetlet.2009.06.119

Title:	Synthesis and characterization of cross-conjugated cruciforms with varied functional groups
Authors:	Li, H. Valiyaveettil, S.
Keywords:	Cross-conjugated Cruciform Liquid crystal Single crystal
Issue Date:	23-Sep-2009
Citation:	Li, H., Valiyaveettil, S. (2009-09-23). Synthesis and characterization of cross-conjugated cruciforms with varied functional groups. Tetrahedron Letters 50 (38) : 5311-5314. ScholarBank@NUS Repository. https://doi.org/10.1016/j.tetlet.2009.06.119
Abstract:	A series of novel oligo(p-phenylenes) (OPPs) derivatives with bisdiene side-chains are synthesized and fully characterized. These cruciforms are soluble in common organic solvents and show good thermal stability. Absorption and emission spectra are recorded to study the effect of different electron-withdrawing and electron-donating groups on photophysical properties. Powder XRD shows crystalline structures for all the cruciforms. Single crystal XRD studies show tight-packing along the planar bisdiene axis but significant twisting along phenylene units, which correlate the role of functionalization along the bisdiene axis in tuning the band gaps of the cruciforms. © 2009 Elsevier Ltd. All rights reserved.
Source Title:	Tetrahedron Letters
URI:	http://scholarbank.nus.edu.sg/handle/10635/77135
ISSN:	00404039
DOI:	10.1016/j.tetlet.2009.06.119
Appears in Collections:	Staff Publications

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