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

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-118.239095
Energy at 298.15K-118.245329
HF Energy-117.676690
Nuclear repulsion energy75.893720
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/6-311+G(3df,2p)
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' 3246 3060 17.84      
2 A' 3172 2990 12.91      
3 A' 3107 2929 32.28      
4 A' 3029 2855 30.16      
5 A' 1516 1430 5.96      
6 A' 1506 1420 15.72      
7 A' 1427 1345 4.62      
8 A' 1195 1126 2.23      
9 A' 1042 983 0.02      
10 A' 914 861 1.81      
11 A' 408 385 16.59      
12 A' 349 329 12.00      
13 A' 151 142 0.57      
14 A" 3173 2991 17.74      
15 A" 3108 2930 3.88      
16 A" 3027 2854 22.67      
17 A" 1503 1417 0.84      
18 A" 1494 1409 1.13      
19 A" 1434 1352 10.19      
20 A" 1381 1302 1.31      
21 A" 1176 1109 0.06      
22 A" 951 897 0.91      
23 A" 945 890 0.02      
24 A" 125 118 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19689.8 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 18561.5 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 MP2=FULL/6-311+G(3df,2p)
ABC
1.24496 0.28378 0.25284

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.545 0.000
C2 -0.013 -0.199 1.283
C3 -0.013 -0.199 -1.283
H4 0.272 1.586 0.000
H5 -0.783 -0.971 1.290
H6 -0.783 -0.971 -1.290
H7 0.940 -0.714 1.448
H8 -0.178 0.453 2.136
H9 0.940 -0.714 -1.448
H10 -0.178 0.453 -2.136

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48321.48321.07892.13422.13422.14272.14432.14272.1443
C21.48322.56562.21671.09032.79391.09571.08652.93783.4843
C31.48322.56562.21672.79391.09032.93783.48431.09571.0865
H41.07892.21672.21673.05173.05172.79902.45942.79902.4594
H52.13421.09032.79393.05172.57901.74951.76323.24493.7584
H62.13422.79391.09033.05172.57903.24493.75841.74951.7632
H72.14271.09572.93782.79901.74953.24491.75682.89603.9316
H82.14431.08653.48432.45941.76323.75841.75683.93164.2718
H92.14272.93781.09572.79903.24491.74952.89603.93161.7568
H102.14433.48431.08652.45943.75841.76323.93164.27181.7568

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 111.132 C1 C2 H7 111.488
C1 C2 H8 112.196 C1 C3 H6 111.132
C1 C3 H9 111.488 C1 C3 H10 112.196
C2 C1 C3 119.737 C2 C1 H4 118.962
C3 C1 H4 118.962 H5 C2 H7 106.323
H5 C2 H8 108.193 H6 C3 H9 106.323
H6 C3 H10 108.193 H7 C2 H8 107.233
H9 C3 H10 107.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability