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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-118.003962
Energy at 298.15K-118.010284
HF Energy-117.635903
Nuclear repulsion energy75.432629
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 CID/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' 3276 3026 30.72      
2 A' 3209 2964 22.29      
3 A' 3160 2919 51.44      
4 A' 3087 2851 36.26      
5 A' 1579 1459 4.30      
6 A' 1568 1448 12.90      
7 A' 1503 1389 3.41      
8 A' 1244 1149 2.80      
9 A' 1100 1016 0.10      
10 A' 925 854 1.68      
11 A' 443 410 18.46      
12 A' 367 339 6.39      
13 A' 156 144 0.16      
14 A" 3210 2965 23.62      
15 A" 3158 2917 5.29      
16 A" 3082 2847 24.09      
17 A" 1569 1450 0.93      
18 A" 1557 1439 1.29      
19 A" 1505 1390 7.20      
20 A" 1444 1333 2.69      
21 A" 1203 1111 0.02      
22 A" 998 922 0.52      
23 A" 984 909 0.65      
24 A" 129 119 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20227.6 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 18684.2 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 CID/6-31G*
ABC
1.24308 0.27834 0.24880

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.014 0.543 0.000
C2 0.014 -0.200 1.296
C3 0.014 -0.200 -1.296
H4 -0.310 1.577 0.000
H5 -0.953 -0.684 1.488
H6 -0.953 -0.684 -1.488
H7 0.767 -0.992 1.295
H8 0.219 0.461 2.139
H9 0.767 -0.992 -1.295
H10 0.219 0.461 -2.139

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49401.49401.08332.15772.15772.14482.15032.14482.1503
C21.49402.59222.22301.09832.98711.09341.09082.81193.5041
C31.49402.59222.22302.98711.09832.81193.50411.09341.0908
H41.08332.22302.22302.78232.78233.07172.46973.07172.4697
H52.15771.09832.98712.78232.97681.75891.76353.28643.9804
H62.15772.98711.09832.78232.97683.28643.98041.75891.7635
H72.14481.09342.81193.07171.75893.28641.76782.58903.7683
H82.15031.09083.50412.46971.76353.98041.76783.76834.2777
H92.14482.81191.09343.07173.28641.75892.58903.76831.7678
H102.15033.50411.09082.46973.98041.76353.76834.27771.7678

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 111.779 C1 C2 H7 111.039
C1 C2 H8 111.641 C1 C3 H6 111.779
C1 C3 H9 111.039 C1 C3 H10 111.641
C2 C1 C3 120.349 C2 C1 H4 118.341
C3 C1 H4 118.341 H5 C2 H7 106.746
H5 C2 H8 107.330 H6 C3 H9 106.746
H6 C3 H10 107.330 H7 C2 H8 108.071
H9 C3 H10 108.071
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability