Synthesis, crystal structures, two-photon absorption and biological imaging application of two novel bent-shaped pyrimidine derivatives
作者： Chao Tang , Qiong Zhang , Dandan Li , Jun Zhang , Pengfei Shi
DOI: 10.1016/J.DYEPIG.2013.04.016
关键词: Photochemistry 、 Fluorescence 、 Crystal structure 、 Bathochromic shift 、 Biological imaging 、 Orthorhombic crystal system 、 Chromophore 、 Two-photon absorption 、 Chemistry 、 Absorption (chemistry)
摘要: Abstract Two novel bent-shaped D–π–A–π–D chromophore molecules, 2-pyrazolyl-4,6-bis (4-N,N-ethylaminostyryl)pyrimidine (Z1) and 2-imidazolyl-4,6 –bis- (4-N,N- ethylaminostyryl) pyrimidine (Z2), were synthesized fully characterized. It was found that the both molecules crystallize in orthorhombic system, space group of P212121. The photophysical properties connections between structure chromophores investigated experimentally theoretically. revealed absorption single-photon excited fluorescence (SPEF) spectra show remarkable bathochromic shifts with increasing polarity solvents. two have strong two-photon large cross-sections near-infrared range. Additionally, microscopy (TPM) fluorescent imaging BEL-7402 cells labeled Z1 Z2 their potential application as a biological probe.
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