GENERAL PRINCIPLES OF BIOCHEMICAL ENERGETICS 139 



Table XI 

 Free energy liberated in the hydrolysis of various bonds 



Bonds 



Oside linkage 



Peptide linkage 



O 



Ester linkage R — C- 



R-O 

 H 



O-R' 



-PO3H2 

 OR 



c ^ 



no, 



R_CJ-NH-R' 



Kilocals jmole 

 (negative values) 



2.0 - 4.0 



4.8 



3.0 



Pyrophosphate 



Guanidinephosphate 



Enolphosphate 



Acylphosphate 



Thioester 



Thiophosphate 



O 



II 



R— P-O 



I 



O 



II 



^P— R' 



I 



OH OH 



NH , 



" I 



R-NH-C-NH-fPOaH^ 



R=:C-0~P0aH2 

 I 



o 



II I 



R-C-O-l-POaHa 



O 



R — C4SR 



R— S- 



12.0 



PO3H, 



14.0 



16.0 



16 



16.0 



ca. 16.0 



