乙炔分子的振动模型A MOLECULAR VIBRATION MODEL FOR ACETYLENE
武琦,陈奎孚
摘要(Abstract):
乙炔分子振动不仅有经典力学的教学意义,对其分子振动信息的检测和分析还可直接应用于乙炔的浓度检测、光谱分析等。本文通过引入直线型三原子分子振动模型中的角簧概念,并在该三原子分子振动模型的基础上作进一步延伸,建立了乙炔分子振动的一个模型。并讨论了乙炔分子伸缩和弯曲两种振动模式,由此计算出乙炔分子在伸缩以及弯曲振动模式下分别对应的本征振动频率,并采用多组实验数据进行验证,模型预测结果与文献实验数据吻合较好。
关键词(KeyWords): 本征振动模型;弹簧振子;化学键;乙炔检测;经典力学
基金项目(Foundation):
作者(Author): 武琦,陈奎孚
参考文献(References):
- [1]罗颖,罗兴垅.CO2气体分子简正振动模式的研究[J].大学物理,2014,33(01):17-21.LUO Y,LUO X L.Investigation on normal vibration model of CO2molecular[J].College Physics,2014,33(1):17-21.(in Chinese)
- [2]陈奎孚,闵顺耕.具有直线结构的三原子分子振动模型[J].大学物理,2017,36(07):14-18+44.CHEN K F,MIN S G.A vibration model for the linear triatomic molecule[J].College Physics,2017,36(7):14-18.(in Chinese)
- [3]彭勇,于清旭.基于可调谐光纤激光器的C2H2气体光声光谱检测[J].光谱学与光谱分析,2009,29(08):2030-2033.PENG Y,YU Q X.Tunable fiber laser based photoacoustic spectroscopy for acetylene detection[J].Spectroscopy and Spectral Analysis,2009,29(8):2030-2033.(in Chinese)
- [4]云玉新,赵笑笑,陈伟根,等.采用激光共振光声光谱技术检测乙炔气体[J].高电压技术,2009,35(09):2156-2162.YUN Y X,ZHAO X X,CHEN W G,et al.Acetylene detection by laser resonant photoacoustic spectrometry[J].High Voltage Engineering,2009,35(09):2156-2162.(in Chinese)
- [5]何莹,张玉钧,阚瑞峰,等.基于激光吸收光谱乙炔在线监测技术的研究[J].光谱学与光谱分析,2008,30(10):2228-2231.HE Y,ZHANG Y J,KAN R F,et al.The development of acetylene on-line monitoring technology based on laser absorption spectrum[J].Spectroscopy and Spectral Analysis,2008,28(10):2228-2231.(in Chinese)
- [6]张晓星,刘恒,张英,等.基于光声光谱峰面积的微量乙炔气体定量检测[J].高电压技术,2015,41(03):857-863.ZHANG X X,LIU H,ZHANG Y,et al.Quantum detection of trace acetylene gas based on the peak area of photoacoustic spectroscopy[J].High Voltage Engineering,2015,41(3):857-863.(in Chinese)
- [7]陈钢,阮中中.对称四振子系统的简正振动的两种解法[J].大学物理,2008,27(08):13-14.CHEN G,RUAN Z Z.Two solving methods for symmetrical four-oscillators system with normal vibration[J].College Physics,2008,27(8):13-14.(in Chinese)
- [8]尹新国,公丕锋,朱孟正,等.对称圆环状多原子分子的自由振动[J].大学物理,2009,28(11):12-14.YIN X G,GONG P F,ZHU M Z,et al.Free vibration of a symmetrical multi-atoms molecule with the atoms in a circle[J].College Physics,2009,28(11):12-14.(in Chinese)
- [9]HERRERA O M,BRUNS R E,NETO B B.Similarity transference of molecular parameters.Ⅱ.the bond distances,force constants and polar tensors of HC3Nand HC5N[J].Journal of Chemical Physics,1998,90(12):6933-6939.
- [10]OKUBO S,IWAKUNI K,YAMADA,K M T,et al.Transition dipole-moment of theν1+ν3band of acetylene measured with dual-comb Fourier-transform spectroscopy[J].Journal of Molecular Spectroscopy,2017,341:10-16.
- [11]SHIMANOUCHI T.Tables of molecular vibrational frequencies consolidated VolumeⅠ[M].National Bureau of Standards,1972,1-160.
- [12]陈奎孚.机械振动教程[M].北京:中国农业大学出版社,2014,4:147-160.