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

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-27.436982
Energy at 298.15K-27.445509
HF Energy-27.094697
Nuclear repulsion energy71.131147
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-121G
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 3011 2939 100.39      
2 A1 2910 2840 61.83      
3 A1 1515 1479 20.54      
4 A1 1466 1431 1.47      
5 A1 1135 1107 0.64      
6 A1 742 724 1.04      
7 A1 272 265 4.18      
8 A2 3058 2985 0.00      
9 A2 1510 1474 0.00      
10 A2 983 959 0.00      
11 A2 132 129 0.00      
12 E 3065 2991 67.05      
12 E 3065 2991 67.05      
13 E 3009 2936 14.32      
13 E 3009 2936 14.32      
14 E 2903 2833 50.54      
14 E 2903 2833 50.54      
15 E 1531 1494 3.97      
15 E 1531 1494 3.97      
16 E 1497 1461 3.27      
16 E 1497 1461 3.27      
17 E 1443 1409 8.08      
17 E 1443 1409 8.08      
18 E 1316 1284 7.91      
18 E 1316 1284 7.91      
19 E 1026 1002 1.23      
19 E 1026 1002 1.23      
20 E 962 939 0.10      
20 E 962 939 0.10      
21 E 370 361 0.12      
21 E 370 361 0.12      
22 E 148 144 0.01      
22 E 148 144 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25634.2 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 25018.9 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-121G
ABC
0.25609 0.25609 0.13902

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.182
C2 0.000 1.519 -0.021
C3 1.315 -0.759 -0.021
C4 -1.315 -0.759 -0.021
H5 0.000 1.792 -1.100
H6 1.552 -0.896 -1.100
H7 -1.552 -0.896 -1.100
H8 -0.896 1.978 0.432
H9 0.896 1.978 0.432
H10 2.161 -0.213 0.432
H11 1.265 -1.765 0.432
H12 -1.265 -1.765 0.432
H13 -2.161 -0.213 0.432

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53241.53241.53242.20342.20342.20342.18552.18552.18552.18552.18552.1855
C21.53242.63082.63081.11293.06673.06671.10411.10412.80593.54783.54782.8059
C31.53242.63082.63083.06671.11293.06673.54782.80591.10411.10412.80593.5478
C41.53242.63082.63083.06673.06671.11292.80593.54783.54782.80591.10411.1041
H52.20341.11293.06673.06673.10403.10401.78501.78503.32224.07424.07423.3222
H62.20343.06671.11293.06673.10403.10404.07423.32221.78501.78503.32224.0742
H72.20343.06673.06671.11293.10403.10403.32224.07424.07423.32221.78501.7850
H82.18551.10413.54782.80591.78504.07423.32221.79183.76034.32113.76032.5294
H92.18551.10412.80593.54781.78503.32224.07421.79182.52943.76034.32113.7603
H102.18552.80591.10413.54783.32221.78504.07423.76032.52941.79183.76034.3211
H112.18553.54781.10412.80594.07421.78503.32224.32113.76031.79182.52943.7603
H122.18553.54782.80591.10414.07423.32221.78503.76034.32113.76032.52941.7918
H132.18552.80593.54781.10413.32224.07421.78502.52943.76034.32113.76031.7918

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 111.827 C1 C2 H8 110.936
C1 C2 H9 110.936 C1 C3 H6 111.827
C1 C3 H10 110.936 C1 C3 H11 110.936
C1 C4 H7 111.827 C1 C4 H12 110.936
C1 C4 H13 110.936 C2 C1 C3 118.272
C2 C1 C4 118.272 C3 C1 C4 118.272
H5 C2 H8 107.246 H5 C2 H9 107.246
H6 C3 H10 107.246 H6 C3 H11 107.246
H7 C4 H12 107.246 H7 C4 H13 107.246
H8 C2 H9 108.473 H10 C3 H11 108.473
H12 C4 H13 108.473
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability