1. MALONATE 



Table 1-1 

 Intekchakge Distances in Dianions op Interest " 



Compound 



Oxalate 

 Malonate 



Succinate 



Glutarate 



(c) 



Adipate 



Hydroxy malonate 

 (tartronate) 



Fumarate 



Maleate 



Acetylene-dicar boxy late 

 o-Phthalate 



Isophthalate 

 Terephthalate 



Structure 



'ooc-coo 



'ooc coo" 



\ / 



CHj 

 "ooc -CHj 



"OOC 



CH,- COO" 

 COO" 



\ / 



CH2 CH2 



"OOC— CHj 



CH2 CH2 



COO" 



"OOC-CHj 



"ooc coo" 



/ \ 



CH9 CHa 



^ / 



CHj 

 "OOC-CHj 



CHj— CH. 



\ 



COO 



CHj- COO" 



"OOC COO 



\ / 



CH 



I 

 OH 



"OOC H 



\ / 



c=c 



/ \ - 



H COO 



"OOC COO" 



\ / 

 c = c 



/ \ 



H H 



"OOC-CEC-COO" 



COO" 



^^^^-^ COO- 



COO" 



Distance (A) 



2.42 

 3.28 



4.75 



3.01 



5.83 



4.84 



1.70 



6.87 

 3.28 



4.87 



3.66 

 5.16 

 3.55 



5.84 

 7.33 



COO 



