【摘 要】
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1,2,3,4-Tetrakis(6’,7’--dimethyl)benzoxazolyl cyclobutane was obtained by irradiation of E-l,2-bis(6’,7’-dimethyl-1’,3’-benzoxazolyly-2’)-ethene in etha
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1,2,3,4-Tetrakis(6’,7’--dimethyl)benzoxazolyl cyclobutane was obtained by irradiation of E-l,2-bis(6’,7’-dimethyl-1’,3’-benzoxazolyly-2’)-ethene in ethanol with a 450-watt high pressure mercury lamp. Its crystal and molecular structure has been determined by X-ray diffraction method. The crystal is triclinic, space group A with a = 7.008(2), b=9.586(1), c = 13.174(2)A,α= 104.08(1),β= 98.56(2),γ=99.97(2)°,V= 828.4A3, Mr= 636.76, (C40H36N4O4), Z =1, Dx =1.28g/cm3,μ= 0.78 cm-1 and F(OOO)=336.
1,2,3,4-Tetrakis (6 ’, 7’-dimethyl) benzoxazolyl cyclobutane was obtained by irradiation of El, 2-bis (6’, 7’-dimethyl- 1 ’, 3’-benzoxazolyly- Its crystal and molecular structure has been determined by X-ray diffraction method. The crystal is triclinic, space group A with a = 7.008 (2), b = 9.586 ( (C40H36N4O4), Z = 1, c = 13.174 (2) A, α = 104.08 1, β = 98.56 2, γ = 99.97 2, V = 828.4A3, Mr = 636.76, Dx = 1.28 g / cm3, μ = 0.78 cm-1 and F (OOO) = 336.
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