海洛因的激光拉曼散射谱

Laser Raman Scattering Spectrum of Heroin

给出海洛因的实测 X射线衍射谱、傅里叶红外吸收谱和激光拉曼散射谱 .由衍射谱测出 :海洛因属于正交晶系 ,原胞基矢是 a=8.0 0 3,b=14.373,c=16.0 92× 10 -10 m.又由吸收谱计算得 :海洛因的基本声子能量是 L O=0 .0 4 86,TO1=0 .0 555,TO2 =0 .0 616,LA=0 .0 2 57,TA1=0 .0 0 97,TA2 =0 .0 134 e V.海洛因所有的傅里叶红外吸收峰都是由这些基本声子能量按不同组合方式得到 ,并且每一个激光拉曼背向散射频移峰 ,也是由这些基本声子能量组合而成 .

In this paper, the practical measured X ray diffraction, Fourier infrared absorption and laser Raman scattering spectra of heroin have been given. From the X ray diffraction spectrum, it is found that the heroin belongs to the orthorhombic crystal system, and the basic vectors of the primitive cell are a=8.003, b=14.373, c=16.092×10 -10 m. Based on the infrared absorption spectrum, the fundamental phonon energies of heroin are calculated: LO=0.0486, TO 1=0.0555, TO 2=0.0616, LA=0.0257, TA 1=0.0097, TA 2=0.0134 eV. Not only all of the Fourier infrared absorption peaks of the heroin consist of these elementary phonon energies in different combinations, but also every Raman backward scattering shift peaks of heroin consist of these elementary phonon energies in different combinations.