Synthesis, crystal, absorption and fluorescence spectroscopy of nitro-stilbene derivatives with benzophenones.
In this paper, we have presented a range of new nitro-stilbene derivatives with benzophenones via ether or ester bridged bond. These nitro-stilbene derivatives with benzophenones have been conveniently obtained by condensation reaction. The linked benzophenones were efficiently introduced to nitro-stilbene dyes. The structures of these compounds have been characterized with NMR and element analysis. The single crystals of two target compounds (11 and 12) have been obtained, and their X-ray crystallographic data have been determined and discussed. Remarkably different absorption and fluorescence spectroscopy was observed for nitro-stilbene derivatives with benzophenones via different linked bonds. The results show that electron-donating or electron withdrawing bridged bonds have significant influence on the absorption and fluorescence spectroscopy, which makes it possible for the development of ideal nitro-stilbene dyes with benzophenones through chemical strategy.
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China. fanggao1971@gmail.com
Fang
F
Gao
Ting
T
Xie
Zhibin
Z
Cheng
Nvdan
N
Hu
Long
L
Yang
Yun
Y
Gong
Shengtao
S
Zhang
Hongru
H
Li
D000042:Absorption; D001577:Benzophenones / Q000138:chemical synthesis* / Q000737:chemistry / Q000493:pharmacokinetics; D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D015394:Molecular Structure; D009574:Nitro Compounds / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013056:Spectrophotometry, Ultraviolet; D013267:Stilbenes / Q000138:chemical synthesis* / Q000737:chemistry / Q000493:pharmacokinetics; D013329:Structure-Activity Relationship
D001577:Benzophenones; D009574:Nitro Compounds; D013267:Stilbenes