Hydrocarbons, 182 illus

We have no illusions that the above survey of benzenoid forms depicted in the literature is complete. To take an example, the really classical work of Polya [92] from 1936 on algebraic computations of isomers of organic compounds is not mentioned above. Nevertheless it contains pictures of a few benzenoid hydrocarbons. 

Simple lipids with one straight and saturated hydrocarbon chain linked to a polar head-group, such as a fatty acid, will first be considered. The amphiphilic nature of the molecule is reflected in its solid state structure. Thus the non-polar parts and the polar head-groups form separate regions. This makes possible a very effective interaction between the polar head-groups. A fragment of such a crystal is illus-... 

The formal analysis of the diagrams presented in Figs. 4.13, 4.14 and 4.15, showing the UCL decrease, may create illusions about the universal inhibiting effect of hydrocarbon additives on H2 + air mixture combustion. However, determination... 

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