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

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-118.047235
Energy at 298.15K-118.053517
HF Energy-117.635490
Nuclear repulsion energy75.213448
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 CCD/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' 3216 3044 29.07      
2 A' 3149 2981 21.27      
3 A' 3098 2932 48.98      
4 A' 3024 2862 33.64      
5 A' 1550 1467 4.34      
6 A' 1537 1455 12.84      
7 A' 1473 1395 3.42      
8 A' 1221 1156 2.78      
9 A' 1081 1023 0.10      
10 A' 912 863 1.66      
11 A' 435 412 18.49      
12 A' 363 344 6.50      
13 A' 153 145 0.15      
14 A" 3150 2981 22.24      
15 A" 3097 2931 4.93      
16 A" 3020 2859 23.34      
17 A" 1540 1458 0.97      
18 A" 1527 1446 1.29      
19 A" 1476 1397 7.46      
20 A" 1419 1343 2.20      
21 A" 1187 1124 0.01      
22 A" 980 928 0.64      
23 A" 967 915 0.62      
24 A" 128 121 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19852.3 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 18790.2 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 CCD/6-31G*
ABC
1.23463 0.27716 0.24770

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.543 0.000
C2 -0.013 -0.201 1.298
C3 -0.013 -0.201 -1.298
H4 0.301 1.585 0.000
H5 -0.767 -1.000 1.294
H6 -0.767 -1.000 -1.294
H7 0.960 -0.683 1.495
H8 -0.225 0.463 2.145
H9 0.960 -0.683 -1.495
H10 -0.225 0.463 -2.145

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49641.49641.08842.15052.15052.16472.15652.16472.1565
C21.49642.59682.23031.09872.81581.10381.09602.99713.5127
C31.49642.59682.23032.81581.09872.99713.51271.10381.0960
H41.08842.23032.23033.08213.08212.79542.47722.79542.4772
H52.15051.09872.81583.08212.58841.76721.77653.29573.7760
H62.15052.81581.09873.08212.58843.29573.77601.76721.7765
H72.16471.10382.99712.79541.76723.29571.77202.98993.9955
H82.15651.09603.51272.47721.77653.77601.77203.99554.2892
H92.16472.99711.10382.79543.29571.76722.98993.99551.7720
H102.15653.51271.09602.47723.77601.77653.99554.28921.7720

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 110.998 C1 C2 H7 111.827
C1 C2 H8 111.652 C1 C3 H6 110.998
C1 C3 H9 111.827 C1 C3 H10 111.652
C2 C1 C3 120.377 C2 C1 H4 118.422
C3 C1 H4 118.422 H5 C2 H7 106.712
H5 C2 H8 108.094 H6 C3 H9 106.712
H6 C3 H10 108.094 H7 C2 H8 107.322
H9 C3 H10 107.322
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability