Assignment of the far-infrared band characteristic ofL-methionine with α-helical conformation

1982 ◽  
pp. 1027-1028
Author(s):  
Ryoichi Katakai ◽  
Yasuko Lizuka
Keyword(s):  
Far Infrared ◽  
Helical Conformation ◽  
Infrared Band ◽  
Band Characteristic

scholarly journals Infrared Spectra of the Ices at ≈4 K and the Interpretation of the v OD(D2O) Bands of Ices II and IX

1978 ◽  
Vol 21 (85) ◽  
pp. 694
Author(s):  
F. E. Bates ◽  
S. M. Jacobs ◽  
J. E. Bertie
Keyword(s):  
Infrared Absorption ◽  
Far Infrared ◽  
Fermi Resonance ◽  
Chemical Physics ◽  
Vibrational States ◽  
Infrared Band ◽  
Stretching Vibrations ◽  
First Time ◽  
Lattice Modes ◽  
Complete Interpretation

Abstract We have studied the infrared absorption by the OD stretching, v OD(D2O), and D2O rotational, v R(D2O), vibrations of fully deuterated ice II and ice IX at lo K, and the absorption by OD stretching vibrations, v OD (HDO), of HDO molecules isolated in ices Ih, II, and IX at 10 K. Calculations of the frequencies and relative intensities of the zero-wave-vector normal v OD(D2O) vibrations of ices II and IX have allowed the v OD(D2O) absorption to be assigned. Each component of the band is broad, even at 10 K, most probably because of Fermi resonance between the fundamental OD stretching vibrational states and the isoenergetic continuum of high-order overtone and combination states of the lattice modes. This work has yielded the most complete interpretation yet achieved of an infrared band due to the OH or OD stretching vibrations of a phase of ice. The far-infrared absorption by the translational vibrations of H2O and D2O ices Ih and Ic at 4.3 K has been measured, and has revealed differences between the spectra of ices III and Ic for the first time. Papers describing this work in full have been published in Journal of Chemical Physics, Vol. 67, No. 4, 1977, p. 1311-18, and Vol. 67, No. 6, 1977, p. 2445-48.

scholarly journals Determination and model construction of microbes' complex refractive index in far infrared band

2013 ◽  
Vol 62 (9) ◽  
pp. 094218
Author(s):  
Sun Du-Juan ◽  
Hu Yi-Hua ◽  
Gu You-Lin ◽  
Wang Yong ◽  
Li Le
Keyword(s):  
Refractive Index ◽  
Complex Refractive Index ◽  
Far Infrared ◽  
Model Construction ◽  
Infrared Band

Quantitative far-infrared band strengths of iodine monochloride (ICl), a molten salt off-gas product

2020 ◽  
Author(s):  
Kendall D. Hughey ◽  
Ashley Bradley ◽  
Heather M. Felmy ◽  
Andrew J. Clifford ◽  
Richard M. Cox ◽  
...  
Keyword(s):  
Molten Salt ◽  
Far Infrared ◽  
Iodine Monochloride ◽  
Infrared Band

Far-infrared and Raman Spectra of Crystalline ICN

1971 ◽  
Vol 49 (14) ◽  
pp. 2459-2462 ◽  
Author(s):  
R. Savoie ◽  
M. Pézolet
Keyword(s):  
Raman Spectra ◽  
Infrared Spectra ◽  
High Frequency ◽  
Far Infrared ◽  
Infrared And Raman Spectra ◽  
Infrared Band ◽  
Longitudinal Modes ◽  
Intensity Measurements ◽  
Cyanogen Iodide ◽  
Far Infrared Spectra

The Raman and far-infrared spectra of crystalline cyanogen iodide have been recorded. High-frequency shoulders alongside the Raman bands confirm the piezoelectric nature of this solid and allow an estimate to be made of the frequencies of the longitudinal modes associated to the fundamental vibrations. Dipole derivatives calculated from these frequencies agree qualitatively with those obtained from infrared band intensity measurements.

scholarly journals Infrared Spectra of the Ices at ≈4 K and the Interpretation of the vOD(D2O) Bands of Ices II and IX

1978 ◽  
Vol 21 (85) ◽  
pp. 694-694
Author(s):  
F. E. Bates ◽  
S. M. Jacobs ◽  
J. E. Bertie
Keyword(s):  
Infrared Absorption ◽  
Far Infrared ◽  
Fermi Resonance ◽  
Chemical Physics ◽  
Vibrational States ◽  
Infrared Band ◽  
Stretching Vibrations ◽  
First Time ◽  
Lattice Modes ◽  
Complete Interpretation

AbstractWe have studied the infrared absorption by the OD stretching, vOD(D2O), and D2O rotational, vR(D2O), vibrations of fully deuterated ice II and ice IX at lo K, and the absorption by OD stretching vibrations, vOD (HDO), of HDO molecules isolated in ices Ih, II, and IX at 10 K. Calculations of the frequencies and relative intensities of the zero-wave-vector normal vOD(D2O) vibrations of ices II and IX have allowed the vOD(D2O) absorption to be assigned. Each component of the band is broad, even at 10 K, most probably because of Fermi resonance between the fundamental OD stretching vibrational states and the isoenergetic continuum of high-order overtone and combination states of the lattice modes. This work has yielded the most complete interpretation yet achieved of an infrared band due to the OH or OD stretching vibrations of a phase of ice.The far-infrared absorption by the translational vibrations of H2O and D2O ices Ih and Ic at 4.3 K has been measured, and has revealed differences between the spectra of ices III and Ic for the first time.Papers describing this work in full have been published in Journal of Chemical Physics, Vol. 67, No. 4, 1977, p. 1311-18, and Vol. 67, No. 6, 1977, p. 2445-48.

Model construction of biological particles′ average extinction efficiency factor in far infrared band

2018 ◽  
Vol 47 (10) ◽  
pp. 1004003
Author(s):  
胡以华 Hu Yihua ◽  
黄宝锟 Huang Baokun ◽  
顾有林 Gu Youlin ◽  
赵义正 Zhao Yizheng
Keyword(s):  
Far Infrared ◽  
Efficiency Factor ◽  
Model Construction ◽  
Infrared Band ◽  
Extinction Efficiency ◽  
Biological Particles

scholarly journals A New Unidentified Far‐Infrared Band in NGC 7027

2004 ◽  
Vol 609 (1) ◽  
pp. 225-230 ◽  
Author(s):  
Javier R. Goicoechea ◽  
Jose Cernicharo ◽  
Helena Masso ◽  
Maria Luisa Senent
Keyword(s):  
Far Infrared ◽  
Infrared Band ◽  
Ngc 7027

Frequency Selective Surface for Infrared Transmission Suppression at Atmospheric Window

2018 ◽  
Vol 937 ◽  
pp. 89-95
Author(s):  
Xiao Li Chen ◽  
Chang Hui Tian ◽  
Zhi Xin Che
Keyword(s):  
Electromagnetic Waves ◽  
Far Infrared ◽  
Black Body ◽  
Frequency Selective Surface ◽  
Infrared Transmission ◽  
Infrared Band ◽  
Infrared Transmittance ◽  
Wide Range ◽  
Potential Applications ◽  
Frequency Selective

A double screen infrared frequency selective surface (FSS) with dual transmission stopbands was proposed and numerically investigated. Simulation results show that the infrared transmittance of the structure is lower than 10% in mid-infrared band (3~5 μm) and far-infrared band (8 ~14 μm).This structure is polarization insensitive to the incident electromagnetic waves. For a wide range of incident angles from 0° to 60°, the infrared transmittance of the structure is still lower than 25% in the band of interest. Compared with black body, the radiation ratio of structure is lower in the MWIR and LWIR ranges. The structure provide the potential applications for infrared stealth.

Far-Infrared Band Strengths in the Water Dimer:  Experiments and Calculations

2008 ◽  
Vol 112 (17) ◽  
pp. 3921-3926 ◽  
Author(s):  
Justinas Ceponkus ◽  
Per Uvdal ◽  
Bengt Nelander
Keyword(s):  
Far Infrared ◽  
Water Dimer ◽  
Infrared Band

Extinction characteristics of biological aggregated particles in the far infrared band

2019 ◽  
Vol 48 (7) ◽  
pp. 704002
Author(s):  
陈 曦 Chen Xi ◽  
胡以华 Hu Yihua ◽  
顾有林 Gu Youlin ◽  
赵欣颖 Zhao Xinying ◽  
王新宇 Wang Xinyu
Keyword(s):  
Far Infrared ◽  
Infrared Band ◽  
Extinction Characteristics
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