Theory of Molecular Volumes. 

 Trichloracetyl chloride. 



CI - C CI - CI 



983 



= C — CI 

 Contraction 



A -3-6 



As regards the Ring Compounds, we find :— 



o-Xylene. 



CH 

 // \ 



CH C - CH,-v 



CH^ C - CH 3 - 



CH 

 A ... -2-2 



o-Nitrotoluene. 



CH 

 ^ \ 

 CH C-CH 3 - 



I II 



CH C-N0 2 - 



^ / 

 CH 



A ... -2-6 



m-Xylene. 



CH 

 // \ 

 CH C -CH, 



CH CH 



C — CH 3 

 -0-4 



m-Nitrotoluene. 

 .CH 

 CH c - CH f 



CH CH 



C NO, 



-0-9 



p-Xylene. 



J- CH, 



CH CH 



I II 



CH CH 



^ / 



C — CH 3 







^-Nitrotoluene. 



CH CH 



CH CH 



^ / 



C — NO*. 







S 0> far all the facts available favour our hypothesis, but 

 certain other pieces of evidence make it stronger. 



(a) It is well known that di-derivatives of the paraffins bv 

 means of suitable reagents form ring compounds. 



-CH 3 - CH 



CHo 



CHo 



CI 



CI 



/ CH,-|OH 

 €H> I 



\ 



€H>- OJH 

 j 



Na 



CH 3 ~ CH 



CH-, 



2 II CI 



CH 



/ CI \ 



CHo o + H-0 



CH,. 

 3T2 



Inner Oxide 

 Formation. 



