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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-118.406076
Energy at 298.15K-118.412213
HF Energy-118.406076
Nuclear repulsion energy75.560592
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 B1B95/6-31+G**
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' 3199 3060 29.08      
2 A' 3130 2994 16.49      
3 A' 3056 2923 46.98      
4 A' 2973 2844 49.15      
5 A' 1489 1424 6.04      
6 A' 1476 1412 18.27      
7 A' 1406 1345 5.00      
8 A' 1174 1123 2.61      
9 A' 1021 977 0.05      
10 A' 899 860 2.27      
11 A' 397 380 21.59      
12 A' 353 338 14.78      
13 A' 126 121 0.59      
14 A" 3131 2995 25.17      
15 A" 3057 2924 8.32      
16 A" 2968 2840 29.35      
17 A" 1475 1411 0.66      
18 A" 1467 1403 2.31      
19 A" 1415 1354 11.27      
20 A" 1362 1303 1.26      
21 A" 1164 1113 0.36      
22 A" 934 894 1.57      
23 A" 930 890 0.12      
24 A" 117 112 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 19359.4 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 18519.2 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 B1B95/6-31+G**
ABC
1.25218 0.27969 0.24991

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 0.535 0.000
C2 -0.011 -0.197 1.292
C3 -0.011 -0.197 -1.292
H4 0.223 1.595 0.000
H5 -0.749 -1.009 1.293
H6 -0.749 -1.009 -1.293
H7 0.963 -0.673 1.498
H8 -0.227 0.460 2.137
H9 0.963 -0.673 -1.498
H10 -0.227 0.460 -2.137

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48461.48461.08592.14472.14472.15632.14932.15632.1493
C21.48462.58322.22171.09692.80791.10331.09262.99233.4978
C31.48462.58322.22172.80791.09692.99233.49781.10331.0926
H41.08592.22172.22173.06563.06562.81682.46142.81682.4614
H52.14471.09692.80793.06562.58641.75631.77263.29103.7678
H62.14472.80791.09693.06562.58643.29103.76781.75631.7726
H72.15631.10332.99232.81681.75633.29101.76352.99503.9888
H82.14931.09263.49782.46141.77263.76781.76353.98884.2741
H92.15632.99231.10332.81683.29101.75632.99503.98881.7635
H102.14933.49781.09262.46143.76781.77263.98884.27411.7635

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 111.477 C1 C2 H7 112.023
C1 C2 H8 112.120 C1 C3 H6 111.477
C1 C3 H9 112.023 C1 C3 H10 112.120
C2 C1 C3 120.913 C2 C1 H4 118.782
C3 C1 H4 118.782 H5 C2 H7 105.929
H5 C2 H8 108.113 H6 C3 H9 105.929
H6 C3 H10 108.113 H7 C2 H8 106.846
H9 C3 H10 106.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.071      
2 C -0.594      
3 C -0.594      
4 H 0.145      
5 H 0.159      
6 H 0.159      
7 H 0.164      
8 H 0.163      
9 H 0.164      
10 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.222 -0.183 0.000 0.288
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.817 0.398 0.000
y 0.398 -20.786 0.000
z 0.000 0.000 -20.636
Traceless
 xyz
x -1.106 0.398 0.000
y 0.398 0.441 0.000
z 0.000 0.000 0.666
Polar
3z2-r21.331
x2-y2-1.031
xy0.398
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.831 -0.075 0.000
y -0.075 5.414 0.000
z 0.000 0.000 6.171


<r2> (average value of r2) Å2
<r2> 61.372
(<r2>)1/2 7.834