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

using model chemistry: B2PLYP=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 B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-118.358481
Energy at 298.15K-118.364691
HF Energy-118.198955
Nuclear repulsion energy75.497140
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 B2PLYP=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' 3214 3214 25.18      
2 A' 3139 3139 18.41      
3 A' 3081 3081 40.62      
4 A' 3000 3000 36.76      
5 A' 1514 1514 3.50      
6 A' 1505 1505 10.32      
7 A' 1430 1430 2.71      
8 A' 1193 1193 3.01      
9 A' 1048 1048 0.08      
10 A' 897 897 1.49      
11 A' 418 418 15.17      
12 A' 359 359 6.15      
13 A' 136 136 0.08      
14 A" 3140 3140 20.65      
15 A" 3081 3081 6.79      
16 A" 2996 2996 22.80      
17 A" 1504 1504 0.31      
18 A" 1493 1493 0.75      
19 A" 1427 1427 6.00      
20 A" 1383 1383 4.42      
21 A" 1166 1166 0.09      
22 A" 953 953 1.37      
23 A" 947 947 0.07      
24 A" 122 122 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19572.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19572.6 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 B2PLYP=FULL/6-31G(2df,p)
ABC
1.25045 0.27869 0.24912

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.538 0.000
C2 -0.013 -0.198 1.294
C3 -0.013 -0.198 -1.294
H4 0.265 1.585 0.000
H5 -0.739 -1.016 1.288
H6 -0.739 -1.016 -1.288
H7 0.965 -0.658 1.507
H8 -0.246 0.456 2.137
H9 0.965 -0.658 -1.507
H10 -0.246 0.456 -2.137

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48921.48921.08302.14552.14552.15802.15082.15802.1508
C21.48922.58892.22091.09452.80451.10071.09143.00273.5005
C31.48922.58892.22092.80451.09453.00273.50051.10071.0914
H41.08302.22092.22093.07163.07162.79112.46992.79112.4699
H52.14551.09452.80453.07162.57541.75541.76983.29323.7599
H62.14552.80451.09453.07162.57543.29323.75991.75541.7698
H72.15801.10073.00272.79111.75543.29321.76093.01463.9978
H82.15081.09143.50052.46991.76983.75991.76093.99784.2731
H92.15803.00271.10072.79113.29321.75543.01463.99781.7609
H102.15083.50051.09142.46993.75991.76983.99784.27311.7609

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 111.361 C1 C2 H7 111.987
C1 C2 H8 111.986 C1 C3 H6 111.361
C1 C3 H9 111.987 C1 C3 H10 111.986
C2 C1 C3 120.735 C2 C1 H4 118.548
C3 C1 H4 118.548 H5 C2 H7 106.195
H5 C2 H8 108.120 H6 C3 H9 106.195
H6 C3 H10 108.120 H7 C2 H8 106.886
H9 C3 H10 106.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability