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

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-117.846355
Energy at 298.15K-117.852687
HF Energy-117.590515
Nuclear repulsion energy74.721762
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 MP2/6-31G
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' 3214 3075 37.09      
2 A' 3136 3001 26.22      
3 A' 3084 2951 59.99      
4 A' 3009 2879 35.97      
5 A' 1574 1506 5.00      
6 A' 1557 1489 13.09      
7 A' 1496 1431 3.57      
8 A' 1238 1185 3.41      
9 A' 1105 1057 0.21      
10 A' 897 858 1.22      
11 A' 451 432 21.73      
12 A' 375 359 4.96      
13 A' 150 143 0.11      
14 A" 3136 3001 25.70      
15 A" 3083 2950 5.05      
16 A" 3007 2877 26.87      
17 A" 1565 1498 1.41      
18 A" 1548 1481 0.72      
19 A" 1481 1417 5.10      
20 A" 1444 1382 7.50      
21 A" 1187 1135 0.18      
22 A" 1007 963 0.59      
23 A" 987 944 0.83      
24 A" 129 124 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19930.1 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 19069.1 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 MP2/6-31G
ABC
1.22800 0.27185 0.24330

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 0.544 0.000
C2 -0.012 -0.202 1.312
C3 -0.012 -0.202 -1.312
H4 0.290 1.591 0.000
H5 -0.749 -1.020 1.296
H6 -0.749 -1.020 -1.296
H7 0.971 -0.660 1.531
H8 -0.258 0.463 2.152
H9 0.971 -0.660 -1.531
H10 -0.258 0.463 -2.152

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50961.50961.08982.16112.16112.18172.16752.18172.1675
C21.50962.62492.24261.10122.83161.10631.09853.04323.5361
C31.50962.62492.24262.83161.10123.04323.53611.10631.0985
H41.08982.24262.24263.09513.09512.80632.49102.80632.4910
H52.16111.10122.83163.09512.59261.77281.78093.32883.7855
H62.16112.83161.10123.09512.59263.32883.78551.77281.7809
H72.18171.10633.04322.80631.77283.32881.77653.06184.0415
H82.16751.09853.53612.49101.78093.78551.77654.04154.3039
H92.18173.04321.10632.80633.32881.77283.06184.04151.7765
H102.16753.53611.09852.49103.78551.78094.04154.30391.7765

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 110.762 C1 C2 H7 112.103
C1 C2 H8 111.440 C1 C3 H6 110.762
C1 C3 H9 112.103 C1 C3 H10 111.440
C2 C1 C3 120.769 C2 C1 H4 118.347
C3 C1 H4 118.347 H5 C2 H7 106.844
H5 C2 H8 108.112 H6 C3 H9 106.844
H6 C3 H10 108.112 H7 C2 H8 107.359
H9 C3 H10 107.359
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability