Table 2. BDE Values of C–O and C–C Bonds^a.

no.	chemical groups	bond	BDE (kcal/mol)
1	phenolic hydroxyl	Ph–OHa	115.04
2	ester 1	Ph–(CO)OCH3	112.15
2	ester 1	Ph(CO)–OCH3	102.51
2	ester 1	Ph(CO)O–CH3	88.94
3	carboxyl	Ph–(CO)OH	112.70
3	carboxyl	Ph(CO)–OH	111.14
4	hydroxyl	C4H5O–OH	112.91
5	ester 2	CH3–OC(O)OH	89.32
5	ester 2	CH3O–C(O)OH	105.36
5	ester 2	CH3OC(O)–OH	113.39

^aPh represents phenyl.