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All results from a given calculation for C(CH3)3 (Tert-butyl radical)

using model chemistry: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A"
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-27.620925
Energy at 298.15K-27.629513
HF Energy-27.148944
Nuclear repulsion energy71.652110
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3133 2974 75.93      
2 A1 3036 2883 41.34      
3 A1 1521 1444 23.46      
4 A1 1451 1378 2.33      
5 A1 1136 1079 0.46      
6 A1 788 748 1.14      
7 A1 286 272 6.71      
8 A2 3174 3014 0.00      
9 A2 1499 1423 0.00      
10 A2 976 927 0.00      
11 A2 150 142 0.00      
12 E 3178 3017 48.74      
12 E 3178 3017 48.74      
13 E 3130 2971 12.54      
13 E 3130 2971 12.54      
14 E 3033 2879 37.01      
14 E 3033 2879 37.01      
15 E 1524 1447 2.46      
15 E 1524 1447 2.46      
16 E 1501 1425 4.73      
16 E 1501 1425 4.73      
17 E 1438 1365 11.03      
17 E 1438 1365 11.03      
18 E 1323 1256 7.09      
18 E 1323 1256 7.09      
19 E 1037 984 2.48      
19 E 1037 984 2.48      
20 E 949 901 0.00      
20 E 949 901 0.00      
21 E 371 352 0.02      
21 E 371 352 0.02      
22 E 166 158 0.00      
22 E 166 158 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26222.7 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 24895.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/CEP-31G*
ABC
0.26140 0.26140 0.14267

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.229
C2 0.000 1.498 -0.026
C3 1.297 -0.749 -0.026
C4 -1.297 -0.749 -0.026
H5 0.000 1.718 -1.116
H6 1.488 -0.859 -1.116
H7 -1.488 -0.859 -1.116
H8 -0.897 1.976 0.407
H9 0.897 1.976 0.407
H10 2.160 -0.211 0.407
H11 1.263 -1.765 0.407
H12 -1.263 -1.765 0.407
H13 -2.160 -0.211 0.407

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51911.51911.51912.18212.18212.18212.17782.17782.17782.17782.17782.1778
C21.51912.59402.59401.11252.99292.99291.10521.10522.78833.52543.52542.7883
C31.51912.59402.59402.99291.11252.99293.52542.78831.10521.10522.78833.5254
C41.51912.59402.59402.99292.99291.11252.78833.52543.52542.78831.10521.1052
H52.18211.11252.99292.99292.97612.97611.78681.78683.27284.00634.00633.2728
H62.18212.99291.11252.99292.97612.97614.00633.27281.78681.78683.27284.0063
H72.18212.99292.99291.11252.97612.97613.27284.00634.00633.27281.78681.7868
H82.17781.10523.52542.78831.78684.00633.27281.79403.75934.32033.75932.5263
H92.17781.10522.78833.52541.78683.27284.00631.79402.52633.75934.32033.7593
H102.17782.78831.10523.52543.27281.78684.00633.75932.52631.79403.75934.3203
H112.17783.52541.10522.78834.00631.78683.27284.32033.75931.79402.52633.7593
H122.17783.52542.78831.10524.00633.27281.78683.75934.32033.75932.52631.7940
H132.17782.78833.52541.10523.27284.00631.78682.52633.75934.32033.75931.7940

picture of Tert-butyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.084 C1 C2 H8 111.184
C1 C2 H9 111.184 C1 C3 H6 111.084
C1 C3 H10 111.184 C1 C3 H11 111.184
C1 C4 H7 111.084 C1 C4 H12 111.184
C1 C4 H13 111.184 C2 C1 C3 117.249
C2 C1 C4 117.249 C3 C1 C4 117.249
H5 C2 H8 107.355 H5 C2 H9 107.355
H6 C3 H10 107.355 H6 C3 H11 107.355
H7 C4 H12 107.355 H7 C4 H13 107.355
H8 C2 H9 108.507 H10 C3 H11 108.507
H12 C4 H13 108.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability