Motions of Molecules in Condensed Systems. XI. Infrared Spectrum and Structure of a Single Crystal of Ethylene
- 1 September 1961
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 35 (3) , 1109-1117
- https://doi.org/10.1063/1.1701188
Abstract
The infrared absorption spectra of thin sections of single crystals of ethylene have been recorded in the frequency range between 650 and 3600 cm−1, using polarized infrared radiation. Comparisons are made with similarly recorded spectra of the liquid and vapor phases. A complete assignment of the absorption bands is given. The frequencies of some primary lattice modes of the molecule in the crystal, and of some inactive molecular modes, are inferred from combinations. The ethylene crystal is found spectroscopically to be monoclinic (C 2h ) or orthorhombic (D 2h ), with the molecules located at sites of Ci symmetry. Using the known lattice of the carbon atoms, a molecular arrangement, described by space group P 21/n (C2h 5), is derived as the true crystal structure.Keywords
This publication has 17 references indexed in Scilit:
- HIGH RESOLUTION RAMAN SPECTROSCOPY OF GASES: XII. ROTATIONAL SPECTRA OF C2H4 AND C2D4 AND THE STRUCTURE OF THE ETHYLENE MOLECULECanadian Journal of Physics, 1959
- The Structure of Ethylene from Infrared Spectra1Journal of the American Chemical Society, 1958
- Structure of EthyleneThe Journal of Chemical Physics, 1957
- THE ROTATIONAL RAMAN SPECTRUM OF ETHYLENECanadian Journal of Physics, 1954
- A Ratio-Recording Double Beam Infra-Red Spectrophotometer Using Phase Discrimination and a Single DetectorReview of Scientific Instruments, 1950
- The crystal structure of ethyleneTransactions of the Faraday Society, 1944
- Ethylene. The Heat Capacity from 15°K. to the Boiling Point. The Heats of Fusion and Vaporization. The Vapor Pressure of the Liquid. The Entropy from Thermal Measurements Compared with the Entropy from Spectroscopic DataJournal of the American Chemical Society, 1937
- Carbon—Carbon Bond Distances. The Electron Diffraction Investigation of Ethane, Propane, Isobutane, Neopentane, Cyclopropane, Cyclopentane, Cyclohexane, Allene, Ethylene, Isobutene, Tetramethylethylene, Mesitylene, and Hexamethylbenzene. Revised Values of Covalent RadiiJournal of the American Chemical Society, 1937
- An x-ray goniometer for the investigation of the crystal structure of solidified gasesPhysica, 1935
- The relation between the crystal symmetry of the simpler organic compounds and their molecular constitution. —Part IIProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1913