Synthesis,Crystal Structure and Characterization of3-Ethyl-3,4,4a,10a-tetrahydro-2H-1,5-dioxa-3-aza-

• 作 者: 黄金 李胜 刘鹏 傅佳骏 王瑛
• 机 构: School of Chemical Engineering,Nanjing University of Science and Technology,
• 出 处: 结构化学
• 发表日期: 2013年10期
• 关键词: tetrahydro Ethyl methanol orthorhombic Fluorescence coumarin apparatus bonds rea

3-Ethyl-3,4,4a,10a-tetrahydro-2H-1,5-dioxa-3-aza-phenanthren-6-one(C_(13)H_(13)NO_3,M_r=231.24)was synthesized and characterized by FT-IR,~1H NMR spectra,and thermal analysis.The crystal structure was determined by X-ray single-crystal diffraction.It crystallizes in methanol.The crystal is of orthorhombic system,space group Pbca with a=8.9250(18),b=12.605(3),c=20.552(4)A,Z=8,V=2312.1(8)A~3,D_c=1.329 mg/m~3,μ=0.095 mm~(-1),F(000)=976,R=0.0583 and wR=0.1340.Thermal analysis reveals that it is stable below 100℃.Fluorescence spectra analysis shows that its fluorescence intensity is twice as that of 7-hydroxyleoumarin in methanol solution with the same concentration.

3-Ethyl-3,4,4a, 10a-tetrahydro-2H-1,5-dioxa-3-aza-phenanthren-6-one (C_ (13) H_ (13) NO_3, M_r = 231.24) was synthesized and characterized by FT-IR, ~ 1H NMR spectra, and thermal analysis. The crystal structure was determined by X-ray single-crystal diffraction. It crystallizes in methanol. The crystal is of orthorhombic system, space group Pbca with a = 8.9250 (18) , b = 12.605 (3), c = 20.552 (4) A, Z = 8, V = 2312.1 (8) A 3, D c = 1.329 mg / m 3, μ = 0.095 mm -1, F (000) = 976, R = 0.0583 and wR = 0.1340.Thermal analysis reveals that it is stable below 100 ° C. Fluorescence spectra analysis shows that its fluorescence intensity is twice as that of 7-hydroxyleoumarin in methanol solution with the same concentration.