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

using model chemistry: HF/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at HF/cc-pVQZ
 hartrees
Energy at 0K-117.687601
Energy at 298.15K-117.694035
HF Energy-117.687601
Nuclear repulsion energy75.612485
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 HF/cc-pVQZ
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' 3284 2983 43.18 93.69 0.16 0.28
2 A' 3213 2918 31.29 90.12 0.64 0.78
3 A' 3171 2881 61.53 176.47 0.20 0.33
4 A' 3102 2818 64.53 269.08 0.07 0.13
5 A' 1607 1460 4.67 9.11 0.74 0.85
6 A' 1603 1456 11.94 1.03 0.50 0.67
7 A' 1537 1396 2.54 0.76 0.36 0.53
8 A' 1274 1158 2.00 1.24 0.12 0.21
9 A' 1129 1026 0.46 0.12 0.44 0.61
10 A' 919 835 1.63 8.29 0.18 0.30
11 A' 473 430 18.05 1.18 0.45 0.62
12 A' 375 341 3.64 0.35 0.55 0.71
13 A' 171 156 0.11 0.38 0.75 0.86
14 A" 3213 2919 38.12 63.46 0.75 0.86
15 A" 3167 2877 10.93 18.54 0.75 0.86
16 A" 3097 2814 26.63 21.91 0.75 0.86
17 A" 1598 1452 0.57 3.77 0.75 0.86
18 A" 1591 1445 0.94 9.05 0.75 0.86
19 A" 1535 1394 4.63 1.23 0.75 0.86
20 A" 1472 1338 5.04 0.21 0.75 0.86
21 A" 1196 1087 0.04 3.26 0.75 0.86
22 A" 1021 928 0.33 0.82 0.75 0.86
23 A" 1008 916 0.22 0.01 0.75 0.86
24 A" 134 121 0.00 0.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20446.4 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 18573.5 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 HF/cc-pVQZ
ABC
1.25311 0.27835 0.24902

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 0.544 0.000
C2 -0.015 -0.200 1.297
C3 -0.015 -0.200 -1.297
H4 0.345 1.557 0.000
H5 -0.771 -0.979 1.303
H6 -0.771 -0.979 -1.303
H7 0.943 -0.687 1.479
H8 -0.206 0.459 2.135
H9 0.943 -0.687 -1.479
H10 -0.206 0.459 -2.135

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49571.49571.07512.14192.14192.14982.14482.14982.1448
C21.49572.59452.21381.08492.81721.09011.08262.97713.4997
C31.49572.59452.21382.81721.08492.97713.49971.09011.0826
H41.07512.21382.21383.06173.06172.75332.46312.75332.4631
H52.14191.08492.81723.06172.60531.74731.75443.28023.7683
H62.14192.81721.08493.06172.60533.28023.76831.74731.7544
H72.14981.09012.97712.75331.74733.28021.75042.95803.9613
H82.14481.08263.49972.46311.75443.76831.75043.96134.2691
H92.14982.97711.09012.75333.28021.74732.95803.96131.7504
H102.14483.49971.08262.46313.76831.75443.96134.26911.7504

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 111.198 C1 C2 H7 111.518
C1 C2 H8 111.579 C1 C3 H6 111.198
C1 C3 H9 111.518 C1 C3 H10 111.579
C2 C1 C3 120.300 C2 C1 H4 117.965
C3 C1 H4 117.965 H5 C2 H7 106.902
H5 C2 H8 108.077 H6 C3 H9 106.902
H6 C3 H10 108.077 H7 C2 H8 107.342
H9 C3 H10 107.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.127      
2 C -0.203      
3 C -0.203      
4 H 0.110      
5 H 0.067      
6 H 0.067      
7 H 0.061      
8 H 0.084      
9 H 0.061      
10 H 0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.227 -0.103 0.000 0.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.482 0.488 0.000
y 0.488 -20.877 0.000
z 0.000 0.000 -21.009
Traceless
 xyz
x -0.539 0.488 0.000
y 0.488 0.368 0.000
z 0.000 0.000 0.171
Polar
3z2-r20.342
x2-y2-0.605
xy0.488
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.759 0.040 0.000
y 0.040 5.281 0.000
z 0.000 0.000 6.034


<r2> (average value of r2) Å2
<r2> 61.408
(<r2>)1/2 7.836