Table 1 Calculated DPSH, relative DPSH, VSS, and Esc values of the studied radicals.

From: A theoretical, dynamical evaluation method of the steric hindrance in nitroxide radicals using transition states of model reactions

Entry

DPSH/kJ mol−1

Relative value/−

\({{\bf{E}}}_{{\bf{s}}}^{{\bf{c}}}\)/−

VSS3

Entry

DPSH/kJ mol−1

Relative value/−

\({{\bf{E}}}_{{\bf{s}}}^{{\bf{c}}}\)/−

VSS3

1

23.6 (11.0)

1.00 (1.00)

21

49.6 (28.9)

2.10 (2.61)

12.5

2

37.8

1.60

22

71.7 (52.2)

3.04 (4.73)

14.6

3

59.9

2.54

23

31.9

1.35

10.2

4

99.2

4.21

24

72.4

3.07

14.2

5

57.8

2.45

−4.20

14.2

25

33.4

1.41

−2.94

10.8

6

71.1

3.01

−6.20

18.2

26

33.3

1.41

10.8

7

61.5

2.61

−5.00

15.4

27

29.8

1.26

10.2

8

71.3

3.02

−4.20

14.4

28

23.4

0.990

6.83

9

71.3

3.02

−4.20a

14.4

29

57.3

2.43

−4.20

14.4

10

71.2

3.02

−4.20a

14.4

30

68.5

2.90

−6.20

17.4

11

71.2

3.02

−4.20

14.4

31

44.3

1.88

11.6

12

70.1

2.97

−4.20

14.3

32

69.5

2.95

14.0

13

80.8

3.43

−5.21

15.8

33

45.8

1.94

8.68

14

92.1

3.90

−6.20

17.2

34

46.0

1.95

8.72

15

78.4

3.33

−5.00

15.5

35

45.9

1.94

8.69

16

77.5

3.29

15.3

36

45.5

1.93

8.72

17

63.2

2.68

15.4

37

39.0

1.65

11.1

18

62.3

2.64

15.5

38

58.3

2.47

13.8

19

62.5

2.65

14.9

39

75.4

3.19

−4.20

14.1

20

32.5 (12.6)

1.38 (1.14)

10.5

40

97.9

4.15

16.5

     

41

23.4

0.992

     

42

23.9

1.01

     

43

90.9

3.85

  1. aAs equatorial and axial conformations were not distinguished in ref. 30, they were given the same value in this paper.
  2. bThe values in parentheses are according to (U)M06-2X/6-31 G* level calculations. The others are according to (U)B3LYP/6-31 G* level calculations.