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

using model chemistry: CISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at CISD/cc-pVTZ
 hartrees
Energy at 0K-118.161075
Energy at 298.15K-118.167362
HF Energy-117.679820
Nuclear repulsion energy75.799872
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 CISD/cc-pVTZ
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' 3275 3045 24.99      
2 A' 3196 2971 20.60      
3 A' 3142 2921 46.41      
4 A' 3070 2854 40.51      
5 A' 1549 1441 4.51      
6 A' 1542 1433 13.00      
7 A' 1470 1367 3.49      
8 A' 1227 1141 2.10      
9 A' 1079 1003 0.15      
10 A' 917 853 1.71      
11 A' 427 397 17.65      
12 A' 359 334 6.81      
13 A' 152 142 0.17      
14 A" 3196 2972 24.14      
15 A" 3141 2920 5.54      
16 A" 3067 2851 23.91      
17 A" 1540 1432 0.47      
18 A" 1530 1423 1.11      
19 A" 1476 1372 7.58      
20 A" 1419 1319 2.51      
21 A" 1187 1104 0.00      
22 A" 981 912 0.63      
23 A" 970 902 0.17      
24 A" 118 109 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20013.8 cm-1
Scaled (by 0.9298) Zero Point Vibrational Energy (zpe) 18608.9 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 CISD/cc-pVTZ
ABC
1.25235 0.28119 0.25106

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.543 0.000
C2 -0.013 -0.200 1.290
C3 -0.013 -0.200 -1.290
H4 0.287 1.575 0.000
H5 -0.765 -0.984 1.290
H6 -0.765 -0.984 -1.290
H7 0.947 -0.688 1.472
H8 -0.207 0.455 2.132
H9 0.947 -0.688 -1.472
H10 -0.207 0.455 -2.132

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48831.48831.07562.13592.13592.14552.14222.14552.1422
C21.48832.57982.21491.08692.79971.09201.08372.96483.4889
C31.48832.57982.21492.79971.08692.96483.48891.09201.0837
H41.07562.21492.21493.05373.05372.77942.45842.77942.4584
H52.13591.08692.79973.05372.58051.74711.75793.26373.7538
H62.13592.79971.08693.05372.58053.26373.75381.74711.7579
H72.14551.09202.96482.77941.74713.26371.75232.94493.9529
H82.14221.08373.48892.45841.75793.75381.75233.95294.2631
H92.14552.96481.09202.77943.26371.74712.94493.95291.7523
H102.14223.48891.08372.45843.75381.75793.95294.26311.7523

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 111.115 C1 C2 H7 111.578
C1 C2 H8 111.824 C1 C3 H6 111.115
C1 C3 H9 111.578 C1 C3 H10 111.824
C2 C1 C3 120.152 C2 C1 H4 118.620
C3 C1 H4 118.620 H5 C2 H7 106.614
H5 C2 H8 108.166 H6 C3 H9 106.614
H6 C3 H10 108.166 H7 C2 H8 107.300
H9 C3 H10 107.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability