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

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-118.107219
Energy at 298.15K-118.113450
HF Energy-117.644760
Nuclear repulsion energy74.775413
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 QCISD/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 A' 3189 3059 30.53      
2 A' 3135 3008 19.31      
3 A' 3079 2954 50.11      
4 A' 2998 2876 40.46      
5 A' 1488 1427 3.17      
6 A' 1481 1420 11.03      
7 A' 1416 1359 2.46      
8 A' 1184 1136 1.78      
9 A' 1042 999 0.14      
10 A' 900 863 1.57      
11 A' 424 407 16.02      
12 A' 355 340 4.85      
13 A' 151 145 0.08      
14 A" 3136 3009 23.00      
15 A" 3079 2954 6.40      
16 A" 2994 2873 28.13      
17 A" 1480 1419 0.08      
18 A" 1471 1411 1.43      
19 A" 1428 1370 5.46      
20 A" 1366 1311 3.91      
21 A" 1162 1115 0.00      
22 A" 941 903 0.51      
23 A" 936 898 0.39      
24 A" 121 116 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19476.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18686.0 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 QCISD/cc-pVDZ
ABC
1.21581 0.27482 0.24544

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 0.548 0.000
C2 -0.014 -0.201 1.303
C3 -0.014 -0.201 -1.303
H4 0.315 1.596 0.000
H5 -0.771 -1.011 1.299
H6 -0.771 -1.011 -1.299
H7 0.968 -0.687 1.498
H8 -0.226 0.464 2.159
H9 0.968 -0.687 -1.498
H10 -0.226 0.464 -2.159

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50331.50331.09842.16522.16522.17602.17112.17602.1711
C21.50332.60632.24431.10762.82781.11331.10453.00823.5320
C31.50332.60632.24432.82781.10763.00823.53201.11331.1045
H41.09842.24432.24433.10793.10792.80742.49722.80742.4972
H52.16521.10762.82783.10792.59751.78011.79203.30943.7984
H62.16522.82781.10763.10792.59753.30943.79841.78011.7920
H72.17601.11333.00822.80741.78013.30941.78522.99664.0158
H82.17111.10453.53202.49721.79203.79841.78524.01584.3182
H92.17603.00821.11332.80743.30941.78012.99664.01581.7852
H102.17113.53201.10452.49723.79841.79204.01584.31821.7852

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 111.149 C1 C2 H7 111.668
C1 C2 H8 111.810 C1 C3 H6 111.149
C1 C3 H9 111.668 C1 C3 H10 111.810
C2 C1 C3 120.197 C2 C1 H4 118.395
C3 C1 H4 118.395 H5 C2 H7 106.550
H5 C2 H8 108.208 H6 C3 H9 106.550
H6 C3 H10 108.208 H7 C2 H8 107.205
H9 C3 H10 107.205
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability