return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/cc-pVDZ

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=FULL/cc-pVDZ
 hartrees
Energy at 0K-157.252996
Energy at 298.15K-157.261562
HF Energy-156.686451
Nuclear repulsion energy124.951405
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=FULL/cc-pVDZ
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 3126 2971 47.88      
2 A1 3025 2875 39.31      
3 A1 1492 1418 18.92      
4 A1 1417 1347 3.18      
5 A1 1106 1051 0.16      
6 A1 789 750 1.48      
7 A1 274 261 2.87      
8 A2 3177 3020 0.00      
9 A2 1466 1394 0.00      
10 A2 964 916 0.00      
11 A2 146 139 0.00      
12 E 3180 3023 33.58      
12 E 3180 3023 33.58      
13 E 3126 2971 10.24      
13 E 3126 2971 10.24      
14 E 3020 2870 32.21      
14 E 3020 2870 32.21      
15 E 1493 1419 1.68      
15 E 1493 1419 1.68      
16 E 1472 1399 3.63      
16 E 1472 1399 3.63      
17 E 1402 1332 5.55      
17 E 1402 1332 5.55      
18 E 1316 1250 4.35      
18 E 1316 1250 4.35      
19 E 1024 974 1.87      
19 E 1024 974 1.87      
20 E 931 885 0.21      
20 E 931 885 0.21      
21 E 376 357 0.10      
21 E 376 357 0.10      
22 E 158 151 0.00      
22 E 158 151 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25989.4 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 24700.3 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=FULL/cc-pVDZ
ABC
0.26606 0.26606 0.14494

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.199
C2 0.000 1.483 -0.021
C3 1.285 -0.742 -0.021
C4 -1.285 -0.742 -0.021
H5 0.000 1.730 -1.104
H6 1.498 -0.865 -1.104
H7 -1.498 -0.865 -1.104
H8 -0.894 1.959 0.415
H9 0.894 1.959 0.415
H10 2.143 -0.205 0.415
H11 1.249 -1.754 0.415
H12 -1.249 -1.754 0.415
H13 -2.143 -0.205 0.415

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
C11.49961.49961.49962.16582.16582.16582.16402.16402.16402.16402.16402.1640
C21.49962.56942.56941.11112.98892.98891.10241.10242.76333.49713.49712.7633
C31.49962.56942.56942.98891.11112.98893.49712.76331.10241.10242.76333.4971
C41.49962.56942.56942.98892.98891.11112.76333.49713.49712.76331.10241.1024
H52.16581.11112.98892.98892.99642.99641.77781.77783.26324.00064.00063.2632
H62.16582.98891.11112.98892.99642.99644.00063.26321.77781.77783.26324.0006
H72.16582.98892.98891.11112.99642.99643.26324.00064.00063.26321.77781.7778
H82.16401.10243.49712.76331.77784.00063.26321.78783.72934.28673.72932.4989
H92.16401.10242.76333.49711.77783.26324.00061.78782.49893.72934.28673.7293
H102.16402.76331.10243.49713.26321.77784.00063.72932.49891.78783.72934.2867
H112.16403.49711.10242.76334.00061.77783.26324.28673.72931.78782.49893.7293
H122.16403.49712.76331.10244.00063.26321.77783.72934.28673.72932.49891.7878
H132.16402.76333.49711.10243.26324.00061.77782.49893.72934.28673.72931.7878

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 111.240 C1 C2 H8 111.632
C1 C2 H9 111.632 C1 C3 H6 111.240
C1 C3 H10 111.632 C1 C3 H11 111.632
C1 C4 H7 111.240 C1 C4 H12 111.632
C1 C4 H13 111.632 C2 C1 C3 117.894
C2 C1 C4 117.894 C3 C1 C4 117.894
H5 C2 H8 106.863 H5 C2 H9 106.863
H6 C3 H10 106.863 H6 C3 H11 106.863
H7 C4 H12 106.863 H7 C4 H13 106.863
H8 C2 H9 108.364 H10 C3 H11 108.364
H12 C4 H13 108.364
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability