Detail of "2162-99-4"

Reference

Force constant calculations of the LAM-1 (longitudinal acoustic modes-1) of n-alkanes and their substituted a-monohalo and a,w-dihalo species in their extended zig-zag planar configurations as found in urea inclusion compounds

Force constant calculations of the LAM-1 (longitudinal acoustic modes-1) of n-alkanes and their substituted a-monohalo and a,w-dihalo species in their extended zig-zag planar configurations as found in urea inclusion compounds. Edwards, H. G. M.; Fawcett, V.; Lung, M. T. (Univ. Bradford, Bradford/West Yorkshire BD7 1DP, UK). J. Inclusion Phenom. Mol. Recognit. Chem., 11(3), 267-79 (English) 1991. CODEN: JIMCEN. ISSN: 0923-0750. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Force consts. were detd. for the C8, C10, C12 and C14 series of n-alkanes CnH2n+2 using an approx. SVFF calcn. and obsd. LAM = 1 wavenumbers. In this calcn. the hydrogen atoms were neglected and only the carbon backbone chain and terminal atoms were considered; this was valid since only low-frequency vibrations were under consideration. 2162-99-4 and 24772-66-5 which are cas registry numbers of substances are two of reagents here. Using force const. transfer, the wavenumbers of the LAM = 1 accordion modes for the analogous a-CnH2m-1X and a,w-CnH2nX2 species, where X = Cl, Br or I, were calcd. For a-chloroalkanes and a,w-dichloroalkanes, the m = 1 accordion modes are calcd. to be in the 220-130 cm-1 and 200-120 cm-1 regions, resp. For the bromo and iodo analogs, the m = 1 accordion modes are calcd. to be in the 200-100 cm-1, 150-90 cm-1 and in the 170-100, 135-80 cm-1 regions, resp. .