화학공학소재연구정보센터
Journal of Chemical Physics, Vol.117, No.23, 10621-10626, 2002
The application of a vacuum ultraviolet Fourier transform spectrometer and synchrotron radiation source to measurements of: V. The beta(11,0) band of NO
The beta(11,0) band of NO was measured at high resolution (0.06 cm(-1)) by the vacuum ultraviolet Fourier transform spectrometer from Imperial College, London, using synchrotron radiation at the Photon Factory, KEK, Japan, as a continuum light source. Such resolution facilitates a line by line analysis of the NO beta(11,0) band which yields accurate rotational line positions and term values as well as the photoabsorption cross sections. The molecular constants of the B(11) (2)Pi(r) level are found to be T-0=55 983.203+/-0.017 cm(-1), A=47.977+/-0.024, B-v=1.010 77+/-0.000 37 cm(-1), D-v=(6.7+/-0.8)x10(-6) cm(-1) and A(D)=0.0438+/-0.0035 cm(-1). The sum of the line strengths for all rotational transitions of the NO beta(11,0) band is determined as 3.04x10(-16) cm(2) cm(-1), corresponding to a band oscillator strength of (3.44+/-0.21)x10(-4).