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 CH3CHCH3 (Isopropyl radical)

using model chemistry: CID/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 CID/cc-pVDZ
 hartrees
Energy at 0K-118.050922
Energy at 298.15K-118.057231
HF Energy-117.645426
Nuclear repulsion energy75.082473
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 CID/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' 3263 3015 30.18      
2 A' 3208 2964 19.66      
3 A' 3157 2917 49.70      
4 A' 3078 2844 36.75      
5 A' 1523 1407 3.70      
6 A' 1517 1401 12.13      
7 A' 1453 1342 2.77      
8 A' 1213 1121 2.10      
9 A' 1069 988 0.11      
10 A' 917 848 1.67      
11 A' 443 410 17.04      
12 A' 364 336 4.11      
13 A' 158 146 0.07      
14 A" 3209 2965 21.57      
15 A" 3156 2916 5.65      
16 A" 3074 2840 29.23      
17 A" 1515 1400 0.07      
18 A" 1506 1391 1.71      
19 A" 1466 1354 5.93      
20 A" 1399 1293 3.61      
21 A" 1186 1096 0.01      
22 A" 965 891 0.28      
23 A" 958 885 0.61      
24 A" 125 116 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19960.5 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 18443.5 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 CID/cc-pVDZ
ABC
1.22816 0.27650 0.24709

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 0.546 0.000
C2 -0.015 -0.201 1.300
C3 -0.015 -0.201 -1.300
H4 0.331 1.582 0.000
H5 -0.765 -1.007 1.295
H6 -0.765 -1.007 -1.295
H7 0.964 -0.678 1.495
H8 -0.230 0.461 2.149
H9 0.964 -0.678 -1.495
H10 -0.230 0.461 -2.149

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49911.49911.09192.15652.15652.16602.16182.16602.1618
C21.49912.59932.23321.10082.81831.10621.09822.99913.5186
C31.49912.59932.23322.81831.10082.99913.51861.10621.0982
H41.09192.23322.23323.09493.09492.78272.48822.78272.4882
H52.15651.10082.81833.09492.58951.77071.78073.29813.7819
H62.15652.81831.10083.09492.58953.29813.78191.77071.7807
H72.16601.10622.99912.78271.77073.29811.77472.98984.0003
H82.16181.09823.51862.48821.78073.78191.77474.00034.2989
H92.16602.99911.10622.78273.29811.77072.98984.00031.7747
H102.16183.51861.09822.48823.78191.78074.00034.29891.7747

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 111.161 C1 C2 H7 111.602
C1 C2 H8 111.752 C1 C3 H6 111.161
C1 C3 H9 111.602 C1 C3 H10 111.752
C2 C1 C3 120.214 C2 C1 H4 118.210
C3 C1 H4 118.210 H5 C2 H7 106.704
H5 C2 H8 108.144 H6 C3 H9 106.704
H6 C3 H10 108.144 H7 C2 H8 107.236
H9 C3 H10 107.236
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability