Thermodynamische Funktionen von Cyclobutanon und α,α,α′,α′‐d 4 ‐Cyclobutanon

For the usual range of temperatures the thermodynamic functions of cyclobutanone and α,α,α′,α′‐d 4 ‐cyclobutanone have been calculated statistically assuming an assignment reported elsewhere 1 . The unknown ring frequency v 27 was put into the calculations as a parameter with values v 27 = 50, 100, 135, 150, 200 cm −1 .