High Resolution Infrared Spectroscopy

Chemistry at the molecular scale played a major role in recent exciting scientific developments such as computing the architecture of molecules, watching atoms dance, and preventing the crises of atmospheric chemistry. The activities of the ULB-infrared spectroscopy research group is aimed at developing high-resolution type instrumental and methodological means to investigate the internal structure of complex molecules, undress reaction mechanisms and, simultaneously, provide reference information required to quantitatively probe the composition of atmospheres. The common ground supporting our activities is the investigation, at high spectral resolution, of the energy, shape and intensity of spectral lines and bands, from the far- to the near-infrared spectral ranges. High resolution Fourier transform spectroscopy is extensively applied to unravel the spectra of ever more complex and highly vibrationally excited molecules, helped by a variety of means including near infrared laser investigations.

[1]  Ozeki,et al.  Microwave Spectrum of the SD+3 Ion: Molecular Structure. , 1998, Journal of molecular spectroscopy.

[2]  J. V. Auwera,et al.  The far infrared spectrum of 3,3,3-trifluoropropene , 1997 .

[3]  Herman,et al.  High-Resolution FT Spectroscopic Investigation of Acetaldehyde around 7 µm. , 1999, Journal of molecular spectroscopy.

[4]  Jean-Marie Flaud,et al.  Absolute ν2 Line Intensities of HOCl by Simultaneous Measurements in the Infrared with a Tunable Diode Laser and Far-Infrared Region Using a Fourier Transform Spectrometer , 2000 .

[5]  M. Herman,et al.  The vibrational energy pattern in ethylene (12C2H4) , 1999 .

[6]  E. Venuti,et al.  The vibrational energy pattern in acetylene. V. 13C2H2 , 1999 .

[7]  Michel Herman,et al.  Refined investigation of the overtone spectrum of nitrous oxide , 2000 .

[8]  A. Campargue,et al.  The absorption spectrum of 12C2H2 IV. The regions 7600–9200 cm−1 and 10600–11500 cm−1 , 2001 .

[9]  R. Field,et al.  Highly vibrationally excited 12C2H2 in the X̃ 1∑+g state: Complementarity of absorption and dispersed fluorescence spectra , 1996 .

[10]  J. Vander Auwera,et al.  Absolute Intensities Measurements in the ν4 + ν5 Band of 12C2H2: Analysis of Herman-Wallis Effects and Forbidden Transitions , 2000 .

[11]  M. Herman,et al.  THE VIBRATIONAL ENERGY PATTERN IN ACETYLENE (IV) : UPDATED GLOBAL VIBRATION CONSTANTS FOR 12C2H2 , 1999 .

[12]  V. Boudon,et al.  High-Resolution Jet-Cooled Spectroscopy of SF6: The ν2+ ν6Combination Band of32SF6and the ν3Band of the Rare Isotopomers , 1998 .

[13]  The vibrational energy pattern in acetylene (VI): Inter- and intrapolyad structures , 2000 .

[14]  M. Herman,et al.  The v6 + v10 band of ethane , 1997 .

[15]  A. Pisarchik,et al.  The Vibrational Energy Levels in Acetylene (III): 12C2D2 , 1998 .

[16]  J. V. Auwera.  Infrared absorption cross-sections for two substituted ethanes: 1,1-difluoroethane (HFC-152a) and 1,2-dichloroethane , 2000 .

[17]  M. Herman,et al.  High resolution FTIR spectroscopy using a slit jet: sampling the overtone spectrum of 12C2H4 , 1997 .

[18]  L. Biennier,et al.  The absorption spectrum of 12 C2H2 between 12800 and 18500cm- 1 II. Rotational analysis , 1997 .

[19]  Daniel Hurtmans,et al.  Laser Spectroscopy of the ν1+3ν3 Absorption Band in 12C2H2(II): Self-Collisional Lineshift Measurements , 1999 .

[20]  André Fayt,et al.  Absolute Intensities in 16O12C32S: The 2500-3100 cm−1 , 1995 .

[21]  J. A. Beukes,et al.  An intercomparison of laboratory measurements of absorption cross sections and integrated absorption intensities for HCFC-22 , 2000 .

[22]  J. V. Auwera,et al.  Structure of the High-Energy Conformer of 1,3-Butadiene , 1997 .

[23]  Jean-Marie Flaud,et al.  The {2ν3, 4ν2, 2ν2+ν3}and 2ν3-ν3 Bands of 14N16O2: Line Positions and Intensities , 1996 .

[24]  Toth.  Line Positions and Strengths of N(2)O between 3515 and 7800 cm(-1). , 1999, Journal of molecular spectroscopy.

[25]  M. Herman,et al.  Slit-jet Fourier transform infrared spectroscopy in 12C2H4: cold and hot bands near 3000 cm−1 , 1998 .

[26]  D. Hurtmans,et al.  Vibration-rotation analysis of the jet-cooled v12, v7 + v8 and v6 + v10 absorption bands of 12C2H4 , 2001 .

[27]  W. J. Lafferty,et al.  Striking Anharmonic Resonances in N2O4: Supersonic Jet Fourier Transform Spectra at 13.3, 7.9, 5.7 and 3.2 μm , 2000 .

[28]  Massimo Inguscio,et al.  Precise measurement of molecular dipole moments with a tunable far-infrared Stark spectrometer: application to HOCl , 1996 .

[29]  M. Herman,et al.  The absorption spectrum of acetylene in the 2ν2 + 3ν3 region. A test of the cluster model , 1995 .

[30]  Masaaki Fujii,et al.  Overtone spectroscopy in nitrous oxide , 1995 .

[31]  M. Herman,et al.  Ab initio and experimental investigation of the vibrational energy pattern in N2O4: The mid and near infrared ranges , 1997 .

[32]  Herman,et al.  Weak Combination Bands in the 3-µm Region of Ethane. , 1999, Journal of molecular spectroscopy.

[33]  A. Perrin,et al.  The ν1 Band in N2O3 , 1996 .

[34]  M. Herman,et al.  The vibrational energy levels in acetylene 12C2H2: Towards a regular pattern at higher energies , 1995 .

[35]  M. Herman,et al.  THE ABSORPTION SPECTRUM OF 12C2H2 BETWEEN 12 800 AND 18 500 CM-1. I. VIBRATIONAL ASSIGNMENTS , 1997 .

[36]  Herman,et al.  Ar and Self-Pressure Broadening Coefficient of the R(11), 5;gn3 Line of 12C2H2 , 1997, Journal of molecular spectroscopy.

[37]  D. Hurtmans,et al.  Spectroscopic and Ab Initio Investigation of the νOH Overtone Excitation in Trans-Formic Acid , 2000 .

[38]  Herman,et al.  High-Resolution FTIR Spectroscopy Using a Jet: Sampling the Rovibrational Spectrum of 12CH4 , 1998, Journal of molecular spectroscopy.

[39]  M. Herman,et al.  Spectroscopic investigation of ground state pyrrole (12C4H5N): the NH stretch , 1997 .

[40]  M. Herman,et al.  The Jet-Cooled Spectrum of Ethane Between 4000 and 4500 cm-1 , 1998 .

[41]  A. Fedorov,et al.  THE GROUND ELECTRONIC STATE OF 1,2-DICHLOROETHANE . II. EXPERIMENTAL INVESTIGATION OF THE FUNDAMENTAL AND OVERTONE VIBRATIONS , 1998 .

[42]  M. Herman,et al.  High-Resolution Absorption Spectroscopy of the 3? 1 and 3? 1 + ? 3 Bands of Propyne , 2000 .

[43]  M. Herman,et al.  Vibration-rotation bands in ethane , 2000 .

[44]  Jean Vander Auwera,et al.  Global and accurate vibration Hamiltonians from high resolution molecular spectroscopy , 1999 .

[45]  C. L. Cruz,et al.  Fourier-transform surface enhanced Raman scattering: A quantitative technique? , 1997 .

[46]  Laurence S. Rothman,et al.  Reprint of: The HITRAN molecular spectroscopic database and HAWKS (HITRAN Atmospheric Workstation): 1996 edition , 1998 .

[47]  M. Herman,et al.  High-Resolution Spectroscopic Investigation of ν16intrans-1,2-Dichloroethane , 1997 .

[48]  A. Perrin,et al.  Investigation of the Fine Structure in Overtone Absorption Bands of 12C2H4 , 1999 .

[49]  J. Demaison,et al.  Rotational Analysis of the ν7 Band in Furan (C4H4O) , 1999 .

[50]  M. Herman,et al.  The ground electronic state of 1,2-dichloroethane I. Ab initio investigation of the geometrical, vibrational and torsional structure , 1998 .

[51]  M. Herman,et al.  Anharmonic Resonances in Monodeuteroacetylene (12C2HD) , 1996 .

[52]  D. Hurtmans,et al.  Ar-induced pressure effects in the ν1+3ν3 absorption band in 12C2H2 , 2000 .

[53]  M. Herman,et al.  The vibrational energy pattern in propyne (12CH312C2H) , 2001 .

[54]  J. V. Auwera,et al.  The Fourier-transform vibrational spectrum of acetylene in the visible range , 1991 .

[55]  M. Herman,et al.  High resolution absorption spectroscopy of the ν1=2–6 acetylenic overtone bands of propyne: Spectroscopy and dynamics , 1999 .

[56]  André Fayt,et al.  Fourier Transform Spectroscopy of Carbonyl Sulfide from 4800 to 8000 cm−1and New Global Analysis of16O12C32S , 1998 .

[57]  M. Herman,et al.  Spectroscopic investigation of vibration–rotation bands in acetaldehyde:: Focus on the nν3 (n=1–5) aldehyde CH stretch bands , 1999 .

[58]  J. V. Auwera,et al.  Rotation–Vibration Constants for the ν1, ν22, ν24, ν22+ ν24, and Ground States in Pyrrole (12C4H5N) , 1999 .

[59]  M. Herman,et al.  Effective Rotation–Vibration Parameters for the ν8and ν4+ ν12Bands of Ethane , 1999 .

[60]  W. J. Lafferty,et al.  First high resolution analysis of the absorption spectrum of propane in the 6.7 μm to 7.5 μm spectral region , 2001 .

[61]  Herman,et al.  Rotational Analysis of the nu(7) Band in Furan (C(4)H(4)O). , 1999, Journal of molecular spectroscopy.

[62]  M. Herman,et al.  High resolution spectroscopic study of the first overtone of the NH stretch and of the fundamentals of the CH stretches in pyrrole , 1995 .

[63]  L. Daumont,et al.  Line Intensity Measurements in 14N216O and Their Treatment Using the Effective Dipole Moment Approach: I. The 4300- to 5200-cm−1 Region , 2001 .

[64]  M. Herman,et al.  The vibrational energy pattern in 12C2H2(II): Vibrational clustering and rotational structure , 1996 .

[65]  D. Hurtmans,et al.  Laser spectroscopy of the ν1+3ν3 absorption band in 12C2H2. I. Pressure broadening and absolute line intensity measurements , 1999 .

[66]  Daniel Hurtmans,et al.  High resolution Fourier transform spectroscopy of jet-cooled molecules , 2000 .

[67]  Laurence S. Rothman,et al.  The HITRAN molecular spectroscopic database and HAWKS (HITRAN atmospheric workstation) , 1998, Defense, Security, and Sensing.