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

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-118.145034
Energy at 298.15K-118.151343
HF Energy-117.652539
Nuclear repulsion energy75.765891
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 MP2=FULL/6-31G(2df,p)
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' 3274 3077 17.69      
2 A' 3206 3013 12.39      
3 A' 3151 2962 28.78      
4 A' 3067 2882 19.80      
5 A' 1539 1446 4.35      
6 A' 1530 1438 12.69      
7 A' 1444 1357 4.21      
8 A' 1207 1134 3.46      
9 A' 1061 997 0.21      
10 A' 918 863 1.71      
11 A' 438 411 17.67      
12 A' 358 337 5.56      
13 A' 158 149 0.06      
14 A" 3206 3014 12.43      
15 A" 3152 2963 3.69      
16 A" 3065 2881 18.77      
17 A" 1528 1436 0.40      
18 A" 1518 1426 1.07      
19 A" 1447 1360 8.93      
20 A" 1395 1311 2.37      
21 A" 1188 1117 0.06      
22 A" 961 904 1.02      
23 A" 956 898 0.46      
24 A" 137 128 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19950.8 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 18751.8 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 MP2=FULL/6-31G(2df,p)
ABC
1.24249 0.28249 0.25195

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 0.547 0.000
C2 -0.015 -0.200 1.285
C3 -0.015 -0.200 -1.285
H4 0.323 1.573 0.000
H5 -0.767 -0.990 1.282
H6 -0.767 -0.990 -1.282
H7 0.949 -0.689 1.469
H8 -0.211 0.450 2.136
H9 0.949 -0.689 -1.469
H10 -0.211 0.450 -2.136

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48651.48651.08042.13802.13802.14792.14722.14792.1472
C21.48652.57082.21571.09102.78921.09651.08842.95873.4881
C31.48652.57082.21572.78921.09102.95873.48811.09651.0884
H41.08042.21572.21573.06623.06622.76852.47162.76852.4716
H52.13801.09102.78923.06622.56321.75241.76473.25583.7502
H62.13802.78921.09103.06622.56323.25583.75021.75241.7647
H72.14791.09652.95872.76851.75243.25581.75762.93753.9546
H82.14721.08843.48812.47161.76473.75021.75763.95464.2721
H92.14792.95871.09652.76853.25581.75242.93753.95461.7576
H102.14723.48811.08842.47163.75021.76473.95464.27211.7576

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 111.162 C1 C2 H7 111.625
C1 C2 H8 112.074 C1 C3 H6 111.162
C1 C3 H9 111.625 C1 C3 H10 112.074
C2 C1 C3 119.696 C2 C1 H4 118.495
C3 C1 H4 118.495 H5 C2 H7 106.466
H5 C2 H8 108.133 H6 C3 H9 106.466
H6 C3 H10 108.133 H7 C2 H8 107.107
H9 C3 H10 107.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability