of Homologous Compounds. 

 Table VI. 

 Esters : Iso-group in Variable Radical. 



13 



E 



T° ab« 



A. 



Diff. 



R. 



| 



T° abs. 



<i. 





Obs. Calc. 



Obs. Calc. 



Diff. 





Fissei 



? Radical Normal. 







H— COOK. 







C 3 H 7 COOR. 





C,H, . 

 CJI 9 . 



CH 



C,H. . 



c\h\ . 



C-H„. 



A £.9 



\sro<» c, 



\ 3963 * 

 CH3COO3 



. 3o9'o ->~).y 



412 o — / 





 29-25 

 26-85 



I. 



276 



25-4 





 +2-JJ 



-0-1 



C 4 ff 9 ... 

 C 5 H U ... 



C,#. ... 



C 4 Hg ... 



#8* fa ,% 55 

 4516 -^ "" 



E-COOCH 3 . 



365'3 -),, j g™ .0 

 389-7 I *** 1 ~ 



E-COOC 2 H 5 . 



4-^-9 



CH ■ 



C 2 H.C00E. 



.. 4332 ' 



4-0-5 



C 3 H 7 ... 

 C 4 H n ... 

 C\H U ... 



383 1 

 407-3 

 434-4 



E— ( 



271 

 300C 3 



25-9 

 241 



+ 1-7 

 -30 









C.,H. ... 



cX ... 



406-9 | „- i g-., 



428-9 1 '" U j w J 



+« 





Iso-gro 



^Y> m j 



Fixed Re 



tcZicaZ. 







C 3 H 7 COOE. 







C 4 H COOE. 





CH,. 

 C H . 

 CH . 



'Tr/Q-l 5 ®5' 85 2 &' 05 



..441-8 --' - J -' 





 -OS 



+1-05 



C 3 H 7 ... 

 6'.#,, ... 

 5 H U ... 



4*5* >g.j 

 465-0 '" ° 



23-55 

 21-8 





 -2-05 



—1-5 





e— cooc;h 7 . 







E— COOC,H n . 





(1L . 

 C If . 



:&l 5 \ **#{**<* 



+3-6 



C 3 H 7 ... 

 CH, ... 



419-6 



4417 



22-1 23-25 



+ 1-15 



contain one or more C — CH 2 — C groups ; (2) that the dif- 

 ferences arc greater for the esters in which the variable 

 radical is normal than for those in which it contains an iso- 

 group ; and (3) that the differences diminish as the molecular 

 weight rises. 



The two negative differences 1 0, 5 and 3°-0 in Class II. 

 (iso-group in variable radical) depend on a single value of A 

 in each case, and but little weight can be attached to them ; 

 the large positive mean difference 2°'b'9 for the esters 

 CigHjgC^ and C 14 rl 2 s0 2 is chiefly due to a single value + 5 '8, 

 which is certainly incorrect. 



