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

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-118.151863
Energy at 298.15K-118.158116
HF Energy-117.676458
Nuclear repulsion energy75.456223
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 CCD/TZVP
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' 3223 3055 28.61      
2 A' 3146 2982 23.74      
3 A' 3092 2931 49.69      
4 A' 3017 2860 42.00      
5 A' 1524 1444 4.26      
6 A' 1506 1428 13.04      
7 A' 1453 1377 2.95      
8 A' 1209 1146 1.32      
9 A' 1069 1013 0.81      
10 A' 901 854 1.39      
11 A' 435 412 21.71      
12 A' 362 343 5.18      
13 A' 161 152 0.20      
14 A" 3146 2983 25.24      
15 A" 3091 2930 6.00      
16 A" 3014 2857 25.23      
17 A" 1513 1434 0.61      
18 A" 1495 1418 1.79      
19 A" 1453 1378 5.97      
20 A" 1400 1327 3.54      
21 A" 1169 1108 0.01      
22 A" 962 912 0.60      
23 A" 957 907 0.20      
24 A" 100 94 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19697.2 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 18673.0 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 CCD/TZVP
ABC
1.23825 0.27921 0.24933

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 0.546 0.000
C2 -0.014 -0.201 1.294
C3 -0.014 -0.201 -1.294
H4 0.309 1.579 0.000
H5 -0.769 -0.992 1.290
H6 -0.769 -0.992 -1.290
H7 0.954 -0.687 1.479
H8 -0.215 0.458 2.140
H9 0.954 -0.687 -1.479
H10 -0.215 0.458 -2.140

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49381.49381.08282.14462.14462.15532.15152.15532.1515
C21.49382.58812.22401.09382.80621.09921.09082.97743.5026
C31.49382.58812.22402.80621.09382.97743.50261.09921.0908
H41.08282.22402.22403.07213.07212.78202.47262.78202.4726
H52.14461.09382.80623.07212.58031.76001.76943.27593.7651
H62.14462.80621.09383.07212.58033.27593.76511.76001.7694
H72.15531.09922.97742.78201.76003.27591.76502.95843.9723
H82.15151.09083.50262.47261.76943.76511.76503.97234.2806
H92.15532.97741.09922.78203.27591.76002.95843.97231.7650
H102.15153.50261.09082.47263.76511.76943.97234.28061.7650

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 111.006 C1 C2 H7 111.535
C1 C2 H8 111.754 C1 C3 H6 111.006
C1 C3 H9 111.535 C1 C3 H10 111.754
C2 C1 C3 120.058 C2 C1 H4 118.475
C3 C1 H4 118.475 H5 C2 H7 106.745
H5 C2 H8 108.177 H6 C3 H9 106.745
H6 C3 H10 108.177 H7 C2 H8 107.398
H9 C3 H10 107.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability