Structure of Liquids Containing Elongated Molecules

Although quantitative mathematical formulations well supported by experiment are not so feasible in these more complicated systems, it is possible to obtain from numerous experiments at least a qualitative working idea of the arrangement in liquids consisting of elliptical molecules. 

Recently Katzoff and C. Pierce have examined normal heptane with monochromatic radiation over a temperature range of —50 to +80  

Extensive experiments have been carried out on alcohols by Stewart and Morrow in which the number of carbon atoms varied from 1 to 11. The diagrams show two definite peaks, one in the neighborhood of 4.6 A, which appears with equal intensity and sharpness in all the substances 

Normal fatty acids have been studied very carefully in the liquid state, particularly by Katz, Krishnamurti, Morrow, De Smedt, Sogani and others. Table 71 shows an experimental series in which the carbon atoms vary from 1 to 11 it indicates that, just as among the alcohols, 

Other experiments on molecules which depart greatly from the spherical form, especially benzene and other aromatic liquids, have not yet found quantitative theoretical interpretation. There can, however, be no doubt that groups or clusters of elliptical or laminar molecules are formed under the influence of inter-molecular forces, which determine the char- 

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