This paper focuses on the thermochemistry of some derivatives of cyclopenta1,3-diene, namely, 5-methylcyclopenta-1,3-diene, 5-ethylcyclopenta-1,3-diene, 5-formylcyclopenta-1,3-diene, 5-methylcyclopenta-1,3-diene-1-yl radical, 5-ethylcyclopenta-1,3-diene-1-yl radical, 5-carbonylcyclopenta-1,3-diene radical, 1-formylcyclopenta-2,4-diene-1-yl radical, 5methylenecyclopenta-1,3-diene radical, 5-ethy...
