Carbon-hydrogen stretching vibrations

Carbon-hydrogen stretching vibrations with frequencies above 3000 cm are also found m arenes such as tert butylbenzene as shown m Figure 13 33 This spectrum also contains two intense bands at 760 and 700 cm which are characteristic of monosub stituted benzene rings Other substitution patterns some of which are listed m Table 13 4 give different combinations of peaks... 

The i.r. spectrum shows absorptions at c. 3050 and 2950 cm-1 for the aromatic and alkyl carbon-hydrogen stretching vibrations respectively, at... 

It is known that the optical absorption which is the major drawback of the classical plastic materials such as PMMA, is dominated by the higher harmonics of the carbon-hydrogen stretching vibrations. The value of polymers from 2,2-dichlorovinyl chloroformates derivatives has to do with their lower optical absorption as compared to standard plastics in the visible and near-infrared regions of the spectrum (0.6 to 1.5 J.m). Some new 1,2-dichlorovinyl carbonates prepared by standard procedures in 90-95 % yield for that purpose are gathered in table 3-19 (Ref. 169). 

All hydrocarbons give absorption peaks in the 2800—3300-cm region that are associated with carbon—hydrogen stretching vibrations. 

Capillary stress. See Capillary forces Capillary tension. See Capillary forces Carbide. 263, 287-289, 292, 736 Carbon, residual. See Residual carbon Carbon-hydrogen stretching vibration, 584-588... 

A. Carbon-hydrogen stretching vibrations in branched alkanes... 

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