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Articles by Bi-Qin Wang
Total Records ( 1 ) for Bi-Qin Wang
  Li-Li Li , Ping Hu , Bi-Qin Wang , Wen-Hao Yu , Yo Shimizu and Ke-Qing Zhao
  Truxene discotic liquid crystals are interesting for their polymesomorphism and as organic semiconductor candidates. We developed an efficient synthetic method for C3-symmetrical truxene derivative 2,7,12-trihydroxy-3,8,13-trimethoxytruxene 5, and further a series of ether-ester mixed tail truxene discogens HTn, TR(OMe)3[OOCC6H2(OCnH2n+1)3]3 were prepared. The truxene discogens HTn (n = 4-8, 10, 12) were characterised by using 1H and 13C nuclear magnetic resonance, and high-resolution mass spectrometry. Their thermal stability was studied with thermal gravimetric analysis and their liquid crystal properties were investigated by using polarising optical microscopy, differential scanning calorimetry and X-ray diffraction. They exhibit a hexagonal columnar (Colh) mesophase in fairly wide temperature ranges.
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