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Evidence for Solid Carbon Dioxide in the Upper Atmosphere of Mars
The infrared spectra recorded by Mariner 6 and 7 show reflections at 4.3 microns. which suggest the presence of solid carbon dioxide in the upper atmosphere of Mars.
Correlation of Infrared Stretching Frequencies and Hydrogen Bond Distances in Crystals
Empirical correlations between X–H≡Y distance R and frequency shift of the X–H stretching motion Δv are presented for O–H≡O, N–H≡O, and N–H≡N hydrogen bonds. A linear correlation is possible provided… Expand
Infrared Absorptions near Three Microns Recorded over the Polar Cap of Mars
During the Mariner 7 flyby of Mars, the infrared spectrometer recorded distinct, sharp absorption. near 3020 and 3300 reciprocal centimeters between 61�S and 80�S. at the edge of the southern polar… Expand
Infrared Spectrum and Vibrational Potential Function of Ketene and the Deuterated Ketenes
Infrared spectra of solid ketene and ketene in argon reveal a new fundamental at lower frequency (CH2CO, 438 cm—1; CD2CO, 371 cm—1; CHDCO, 398 cm—1) than any previously reported. These spectra and… Expand
2.5-km Low-Temperature Multiple-Reflection Cell.
A low-temperature multiple-pass White cell is described which can be operated at any temperature between 120 K and room temperature. The path length can be varied from 60 m up to 2540 m in 80-m… Expand
Martian topography from the Mariner 6 and 7 infrared spectra
Mars topography from Mariner 6 and 7 IR spectra, discussing geographical resolution, surface carbon dioxide pressure, depressions, ridges and valleys
Infrared Spectrum and Vibrational Assignment for Chlorine Monoxide, Cl2O
Infrared studies of chlorine monoxide (16O and 18O) in the region 200–4000 cm−1 for both gas and condensed phases are presented. The spectra require reassignment of the stretching fundamentals and… Expand
Hydrogen Bonding and Electronic Transitions: The Role of the Franck-Condon Principle
- G. Pimentel
- 1 July 1957
The Bonding of Trihalide and Bifluoride Ions by the Molecular Orbital Method
- G. Pimentel
- 1 April 1951
A simple molecular orbital treatment is presented to explain the bonding in trihalide ions, X3−, XY2−, and XYZ−, and bifluoride ion, HF2−. The M.O.'s are formed from linear combinations of npσ… Expand
Krypton Fluoride: Preparation by the Matrix Isolation Technique
A method is described for the preparation of KrF/sub 2/ by the photolysis of fluorine suspended in a solid mixture of argon and krypton at 20 deg K. This experimental method is called the matrix… Expand