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

using model chemistry: MP2/aug-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 MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-118.192209
Energy at 298.15K-118.198441
HF Energy-117.680413
Nuclear repulsion energy75.729172
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/aug-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' 3236 3083 18.82      
2 A' 3157 3008 13.56      
3 A' 3092 2947 33.65      
4 A' 3014 2872 32.09      
5 A' 1512 1441 5.24      
6 A' 1503 1433 14.29      
7 A' 1421 1354 3.96      
8 A' 1194 1138 2.04      
9 A' 1045 995 0.05      
10 A' 907 864 1.67      
11 A' 408 389 17.43      
12 A' 348 332 10.04      
13 A' 151 144 0.41      
14 A" 3158 3010 18.06      
15 A" 3094 2949 3.86      
16 A" 3013 2872 23.52      
17 A" 1499 1429 0.61      
18 A" 1492 1421 1.03      
19 A" 1427 1360 9.27      
20 A" 1377 1312 2.01      
21 A" 1168 1113 0.06      
22 A" 952 907 0.89      
23 A" 943 899 0.02      
24 A" 124 118 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19617.7 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 18693.7 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/aug-cc-pVTZ
ABC
1.23805 0.28260 0.25175

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.548 0.000
C2 -0.013 -0.200 1.286
C3 -0.013 -0.200 -1.286
H4 0.279 1.587 0.000
H5 -0.783 -0.975 1.288
H6 -0.783 -0.975 -1.288
H7 0.944 -0.712 1.452
H8 -0.184 0.453 2.139
H9 0.944 -0.712 -1.452
H10 -0.184 0.453 -2.139

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48751.48751.08002.13782.13782.14712.14802.14712.1480
C21.48752.57172.22131.09222.79611.09761.08832.94483.4910
C31.48752.57172.22132.79611.09222.94483.49101.09761.0883
H41.08002.22132.22133.05823.05822.79972.46492.79972.4649
H52.13781.09222.79613.05822.57611.75361.76753.24893.7611
H62.13782.79611.09223.05822.57613.24893.76111.75361.7675
H72.14711.09762.94482.79971.75363.24891.76122.90353.9400
H82.14801.08833.49102.46491.76753.76111.76123.94004.2783
H92.14712.94481.09762.79973.24891.75362.90353.94001.7612
H102.14803.49101.08832.46493.76111.76753.94004.27831.7612

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 111.007 C1 C2 H7 111.420
C1 C2 H8 112.073 C1 C3 H6 111.007
C1 C3 H9 111.420 C1 C3 H10 112.073
C2 C1 C3 119.637 C2 C1 H4 118.951
C3 C1 H4 118.951 H5 C2 H7 106.422
H5 C2 H8 108.310 H6 C3 H9 106.422
H6 C3 H10 108.310 H7 C2 H8 107.357
H9 C3 H10 107.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability