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

using model chemistry: PBE1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at PBE1PBE/6-311G*
 hartrees
Energy at 0K-118.344497
Energy at 298.15K-118.350634
HF Energy-118.344497
Nuclear repulsion energy75.562851
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 PBE1PBE/6-311G*
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' 3191 3059 34.10      
2 A' 3120 2990 20.56      
3 A' 3052 2925 58.25      
4 A' 2976 2853 54.82      
5 A' 1509 1446 5.89      
6 A' 1496 1434 20.49      
7 A' 1424 1365 5.89      
8 A' 1188 1138 3.14      
9 A' 1035 992 0.30      
10 A' 905 867 2.41      
11 A' 397 380 13.68      
12 A' 349 335 16.71      
13 A' 123 118 0.64      
14 A" 3121 2992 29.37      
15 A" 3051 2924 7.38      
16 A" 2971 2848 30.05      
17 A" 1494 1432 1.41      
18 A" 1484 1422 2.16      
19 A" 1429 1370 11.34      
20 A" 1374 1317 0.69      
21 A" 1171 1122 0.11      
22 A" 949 909 1.37      
23 A" 943 904 0.15      
24 A" 113 108 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19431.4 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 18625.0 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 PBE1PBE/6-311G*
ABC
1.25143 0.27982 0.25000

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 0.536 0.000
C2 -0.011 -0.197 1.291
C3 -0.011 -0.197 -1.291
H4 0.227 1.595 0.000
H5 -0.762 -0.997 1.302
H6 -0.762 -0.997 -1.302
H7 0.957 -0.688 1.490
H8 -0.211 0.462 2.140
H9 0.957 -0.688 -1.490
H10 -0.211 0.462 -2.140

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48421.48421.08592.14652.14652.15692.15032.15692.1503
C21.48422.58152.22141.09732.81511.10311.09302.98463.4988
C31.48422.58152.22142.81511.09732.98463.49881.10311.0930
H41.08592.22142.22143.06473.06472.82192.46072.82192.4607
H52.14651.09732.81513.06472.60331.75631.77013.29253.7780
H62.14652.81511.09733.06472.60333.29253.77801.75631.7701
H72.15691.10312.98462.82191.75633.29251.76312.97923.9821
H82.15031.09303.49882.46071.77013.77801.76313.98214.2792
H92.15692.98461.10312.82193.29251.75632.97923.98211.7631
H102.15033.49881.09302.46073.77801.77013.98214.27921.7631

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 111.627 C1 C2 H7 112.109
C1 C2 H8 112.200 C1 C3 H6 111.627
C1 C3 H9 112.109 C1 C3 H10 112.200
C2 C1 C3 120.838 C2 C1 H4 118.792
C3 C1 H4 118.792 H5 C2 H7 105.911
H5 C2 H8 107.831 H6 C3 H9 105.911
H6 C3 H10 107.831 H7 C2 H8 106.804
H9 C3 H10 106.804
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.208      
2 C -0.682      
3 C -0.682      
4 H 0.212      
5 H 0.225      
6 H 0.225      
7 H 0.225      
8 H 0.230      
9 H 0.225      
10 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.181 -0.108 0.000 0.211
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.658 0.362 0.000
y 0.362 -20.552 0.000
z 0.000 0.000 -20.673
Traceless
 xyz
x -1.045 0.362 0.000
y 0.362 0.613 0.000
z 0.000 0.000 0.432
Polar
3z2-r20.863
x2-y2-1.105
xy0.362
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.328 0.029 0.000
y 0.029 5.116 0.000
z 0.000 0.000 5.940


<r2> (average value of r2) Å2
<r2> 61.295
(<r2>)1/2 7.829