title: Acceptor or donor (diaryl B or N) substituted octupolar truxene: synthesis, structure, and charge-transfer-enhanced fluorescence.
abstract: Two diaryl B- and N-substituted truxene charge-transfer compounds B3 and N3 have been synthesized. The fluorescence intensities of several nonfunctionalized truxene compounds are 1 order of magnitude weaker than that of B3 and N3. To reveal the structure-property correlations, the X-ray structures of B3 and N3 and their precursors 3 and 4 have been determined. The extended molecular dimension, the especially shortened B-C bond, and the improved planarity of B3 can serve as direct structural evidence for the charge transfer.
authors.affiliation: State Key Laboratory of Crystal Materials, Shandong University, 250100 Jinan, P.R. China.
authors.forename: Mao-Sen
authors.initials: MS
authors.lastname: Yuan
authors.forename: Qi
authors.initials: Q
authors.lastname: Fang
authors.forename: Zhi-Qiang
authors.initials: ZQ
authors.lastname: Liu
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Guo
authors.forename: Hong-Yu
authors.initials: HY
authors.lastname: Chen
authors.forename: Wen-Tao
authors.initials: WT
authors.lastname: Yu
authors.forename: Gang
authors.initials: G
authors.lastname: Xue
authors.forename: Dian-Sheng
authors.initials: DS
authors.lastname: Liu