posted on 2006-09-29, 00:00authored byMao-Sen Yuan, Qi Fang, Zhi-Qiang Liu, Jian-Ping Guo, Hong-Yu Chen, Wen-Tao Yu, Gang Xue, Dian-Sheng Liu
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.