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All results from a given calculation for C3H8 (Propane)

using model chemistry: HF/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-31G**
 hartrees
Energy at 0K-118.276159
Energy at 298.15K-118.284702
HF Energy-118.276159
Nuclear repulsion energy82.730007
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/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 A1 3246 2929 79.35 87.54 0.60 0.75
2 A1 3180 2870 0.12 292.75 0.04 0.08
3 A1 3174 2865 57.63 28.68 0.33 0.50
4 A1 1641 1481 2.32 3.51 0.75 0.86
5 A1 1619 1461 0.14 41.08 0.75 0.86
6 A1 1556 1404 1.64 1.33 0.67 0.81
7 A1 1279 1154 0.98 4.05 0.39 0.56
8 A1 927 837 0.47 14.54 0.23 0.37
9 A1 393 355 0.03 0.35 0.09 0.17
10 A2 3233 2918 0.00 7.29 0.75 0.86
11 A2 1617 1460 0.00 35.78 0.75 0.86
12 A2 1426 1288 0.00 11.22 0.75 0.86
13 A2 979 884 0.00 0.01 0.75 0.86
14 A2 234 211 0.00 0.00 0.75 0.86
15 B1 3247 2931 144.56 32.11 0.75 0.86
16 B1 3200 2889 4.83 164.31 0.75 0.86
17 B1 1635 1476 9.30 0.12 0.75 0.86
18 B1 1323 1194 0.04 0.72 0.75 0.86
19 B1 804 726 2.00 0.15 0.75 0.86
20 B1 294 265 0.00 0.01 0.75 0.86
21 B2 3242 2926 42.09 62.12 0.75 0.86
22 B2 3172 2863 44.85 3.13 0.75 0.86
23 B2 1625 1467 0.93 0.23 0.75 0.86
24 B2 1547 1396 3.49 1.92 0.75 0.86
25 B2 1491 1346 3.18 0.08 0.75 0.86
26 B2 1124 1015 0.45 8.91 0.75 0.86
27 B2 1008 910 1.24 0.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 24107.6 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 21759.5 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/6-31G**
ABC
0.99347 0.28123 0.24916

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.585
C2 0.000 1.273 -0.260
C3 0.000 -1.273 -0.260
H4 0.870 0.000 1.238
H5 -0.870 0.000 1.238
H6 0.000 2.162 0.365
H7 0.000 -2.162 0.365
H8 0.877 1.318 -0.900
H9 -0.877 1.318 -0.900
H10 -0.877 -1.318 -0.900
H11 0.877 -1.318 -0.900

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52791.52791.08761.08762.17282.17282.17032.17032.17032.1703
C21.52792.54622.14942.14941.08583.49091.08671.08672.80912.8091
C31.52792.54622.14942.14943.49091.08582.80912.80911.08671.0867
H41.08762.14942.14941.74032.48832.48832.51093.05903.05902.5109
H51.08762.14942.14941.74032.48832.48833.05902.51092.51093.0590
H62.17281.08583.49092.48832.48834.32311.75501.75503.80433.8043
H72.17283.49091.08582.48832.48834.32313.80433.80431.75501.7550
H82.17031.08672.80912.51093.05901.75503.80431.75423.16582.6354
H92.17031.08672.80913.05902.51091.75503.80431.75422.63543.1658
H102.17032.80911.08673.05902.51093.80431.75503.16582.63541.7542
H112.17032.80911.08672.51093.05903.80431.75502.63543.16581.7542

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.342 C1 C2 H8 111.091
C1 C2 H9 111.091 C1 C3 H7 111.342
C1 C3 H10 111.091 C1 C3 H11 111.091
C2 C1 C3 112.869 C2 C1 H4 109.372
C2 C1 H5 109.372 C3 C1 H4 109.372
C3 C1 H5 109.372 H4 C1 H5 106.268
H6 C2 H8 107.760 H6 C2 H9 107.760
H7 C3 H10 107.760 H7 C3 H11 107.760
H8 C2 H9 107.626 H10 C3 H11 107.626
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.215      
2 C -0.330      
3 C -0.330      
4 H 0.109      
5 H 0.109      
6 H 0.111      
7 H 0.111      
8 H 0.109      
9 H 0.109      
10 H 0.109      
11 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.060 0.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.502 0.000 0.000
y 0.000 -22.233 0.000
z 0.000 0.000 -21.884
Traceless
 xyz
x 0.557 0.000 0.000
y 0.000 -0.540 0.000
z 0.000 0.000 -0.017
Polar
3z2-r2-0.034
x2-y20.731
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.681 0.000 0.000
y 0.000 5.210 0.000
z 0.000 0.000 4.762


<r2> (average value of r2) Å2
<r2> 63.422
(<r2>)1/2 7.964