Citation: Cheng Bo Zhang, Ying Li, Wen Ke Liu, Hai Quan Zhang, Huai Yang, Qing Shan Li, Guang Zhong Xing. Synthesis, liquid crystalline and luminescent properties of trimeric phenylenevinylene with end-groups of (R)-(+)-2-methylbutyric acid ester[J]. Chinese Chemical Letters, ;2009, 20(12): 1423-1426. doi: 10.1016/j.cclet.2009.06.022
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The trimeric phenylenevinylene with the symmetrical chiral end-groups (ChTPV) was synthesized.The liquid crystalline and luminescent properties of the ChTPV have been studied by differential scanning calorimetry (DSC), polarized optical microscopy (POM), absorption and photoluminescence spectra.The results indicated that the ChTPV exhibits mesophase over a wide temperature range and a typical optical texture of smectic phase.In contrast with the spectra of the solution, that of the film showed blue-shift in maximal absorption and red-shift in maximal emission due to H-type aggregation with parallel alignment of the TPV transition dipole moment.
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