Infrared bands of the OH (OD) group,hydrogen bonding,and special features of the structure of crystals of tert-butanol at 15–350 K

Conclusions Isotope dilution together with deep cooling, as was shown above, provides a convenient method for refining the parameters of H vibrations, including their anharmonicity. The complicated spectra into which the simple H bands of ordinary tert-butanol are converted upon cooling, of course, contain information on the structure of the crystal which has not yet been interpreted in addition to the information already disclosed above. These spectra, as usual, are radically simplified by isotope dilution. On the other hand, the trivial Davydov doublet of chain crystals of alcohols is paradoxically complicated by isotope dilution, crystal effects, which are not understood, being displayed.Scientific-Research and Planning Institute of the Nitrogen Industry and Products of Organic Synthesis. Translated from Zhurnal Strukturnoi Khimii, Vol. 30, No. 1, pp. 92–99, January–February, 1989.     

Characteristic bands of the valence vibrations of the NO2 group in infrared absorption spectra. Part 1. Experimental data and band assignments

Frequency and intensity (integral and peak) are given for bands in the IR absorption spectra of 71 nitrocompounds; these are assigned to the symmetric valence vibration (1300–1400 cm^–1) of the C-NO₂ group and to the antisymmetric one (1500–1600 cm^–1). The splitting of the symmetric band is discussed in relation to resonance in the coupled vibrations of the nitro and methyl groups in saturated nitro-compounds.