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All results from a given calculation for CH3CHCH3 (Isopropyl radical)

using model chemistry: B2PLYP=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-118.312119
Energy at 298.15K-118.318365
HF Energy-118.186158
Nuclear repulsion energy75.372967
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 B2PLYP=FULL/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3218 3052 32.23      
2 A' 3145 2983 22.60      
3 A' 3088 2929 49.48      
4 A' 3006 2851 45.76      
5 A' 1545 1465 3.82      
6 A' 1533 1454 11.70      
7 A' 1464 1388 2.74      
8 A' 1211 1149 2.94      
9 A' 1069 1013 0.17      
10 A' 904 857 1.61      
11 A' 428 406 17.89      
12 A' 365 346 6.61      
13 A' 143 136 0.09      
14 A" 3146 2983 25.55      
15 A" 3087 2928 7.83      
16 A" 3001 2846 24.35      
17 A" 1534 1455 0.66      
18 A" 1522 1444 1.02      
19 A" 1460 1385 5.50      
20 A" 1409 1336 4.61      
21 A" 1175 1115 0.03      
22 A" 970 920 1.30      
23 A" 962 912 0.32      
24 A" 126 120 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19754.4 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 18735.1 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 B2PLYP=FULL/6-31G*
ABC
1.24741 0.27766 0.24834

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.538 0.000
C2 -0.013 -0.198 1.297
C3 -0.013 -0.198 -1.297
H4 0.278 1.584 0.000
H5 -0.742 -1.017 1.290
H6 -0.742 -1.017 -1.290
H7 0.966 -0.658 1.512
H8 -0.248 0.459 2.139
H9 0.966 -0.658 -1.512
H10 -0.248 0.459 -2.139

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49141.49141.08552.14802.14802.16232.15292.16232.1529
C21.49142.59372.22341.09642.80941.10281.09353.00983.5055
C31.49142.59372.22342.80941.09643.00983.50551.10281.0935
H41.08552.22342.22343.07723.07722.79062.47312.79062.4731
H52.14801.09642.80943.07722.57951.75991.77263.30113.7649
H62.14802.80941.09643.07722.57953.30113.76491.75991.7726
H72.16231.10283.00982.79061.75993.30111.76493.02374.0059
H82.15291.09353.50552.47311.77263.76491.76494.00594.2770
H92.16233.00981.10282.79063.30111.75993.02374.00591.7649
H102.15293.50551.09352.47313.76491.77264.00594.27701.7649

picture of Isopropyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.289 C1 C2 H7 112.051
C1 C2 H8 111.868 C1 C3 H6 111.289
C1 C3 H9 112.051 C1 C3 H10 111.868
C2 C1 C3 120.805 C2 C1 H4 118.417
C3 C1 H4 118.417 H5 C2 H7 106.308
H5 C2 H8 108.082 H6 C3 H9 106.308
H6 C3 H10 108.082 H7 C2 H8 106.950
H9 C3 H10 106.950
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability