return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H8 (Propane)

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-118.304664
Energy at 298.15K-118.313209
HF Energy-118.304664
Nuclear repulsion energy82.816173
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/TZVP
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 3221 2926 85.83 89.54 0.53 0.70
2 A1 3162 2873 0.24 376.28 0.04 0.07
3 A1 3156 2867 56.81 42.77 0.20 0.34
4 A1 1632 1483 4.29 0.63 0.69 0.81
5 A1 1611 1464 0.32 28.44 0.74 0.85
6 A1 1545 1404 2.21 0.46 0.16 0.27
7 A1 1273 1157 1.03 2.92 0.28 0.44
8 A1 920 836 0.38 14.89 0.21 0.34
9 A1 392 356 0.00 0.43 0.12 0.21
10 A2 3207 2914 0.00 8.32 0.75 0.86
11 A2 1607 1461 0.00 21.80 0.75 0.86
12 A2 1422 1292 0.00 7.92 0.75 0.86
13 A2 978 889 0.00 0.00 0.75 0.86
14 A2 231 210 0.00 0.01 0.75 0.86
15 B1 3224 2929 152.68 25.80 0.75 0.86
16 B1 3176 2886 2.84 176.28 0.75 0.86
17 B1 1625 1476 12.11 0.00 0.75 0.86
18 B1 1318 1198 0.01 0.03 0.75 0.86
19 B1 805 731 1.59 0.23 0.75 0.86
20 B1 291 265 0.00 0.00 0.75 0.86
21 B2 3216 2922 44.93 62.32 0.75 0.86
22 B2 3154 2865 44.37 2.66 0.75 0.86
23 B2 1615 1468 1.34 0.22 0.75 0.86
24 B2 1536 1395 4.15 0.02 0.75 0.86
25 B2 1485 1349 2.83 0.18 0.75 0.86
26 B2 1116 1014 0.64 8.50 0.75 0.86
27 B2 1005 913 0.71 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23960.2 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 21770.2 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 HF/TZVP
ABC
0.99580 0.28180 0.24972

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.584
C2 0.000 1.272 -0.259
C3 0.000 -1.272 -0.259
H4 0.870 0.000 1.235
H5 -0.870 0.000 1.235
H6 0.000 2.159 0.365
H7 0.000 -2.159 0.365
H8 0.877 1.316 -0.899
H9 -0.877 1.316 -0.899
H10 -0.877 -1.316 -0.899
H11 0.877 -1.316 -0.899

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52611.52611.08651.08652.17032.17032.16772.16772.16772.1677
C21.52612.54362.14672.14671.08503.48731.08591.08592.80602.8060
C31.52612.54362.14672.14673.48731.08502.80602.80601.08591.0859
H41.08652.14672.14671.73932.48522.48522.50723.05543.05542.5072
H51.08652.14672.14671.73932.48522.48523.05542.50722.50723.0554
H62.17031.08503.48732.48522.48524.31831.75391.75393.80023.8002
H72.17033.48731.08502.48522.48524.31833.80023.80021.75391.7539
H82.16771.08592.80602.50723.05541.75393.80021.75333.16252.6320
H92.16771.08592.80603.05542.50721.75393.80021.75332.63203.1625
H102.16772.80601.08593.05542.50723.80021.75393.16252.63201.7533
H112.16772.80601.08592.50723.05543.80021.75392.63203.16251.7533

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.315 C1 C2 H8 111.056
C1 C2 H9 111.056 C1 C3 H7 111.315
C1 C3 H10 111.056 C1 C3 H11 111.056
C2 C1 C3 112.893 C2 C1 H4 109.349
C2 C1 H5 109.349 C3 C1 H4 109.349
C3 C1 H5 109.349 H4 C1 H5 106.340
H6 C2 H8 107.790 H6 C2 H9 107.790
H7 C3 H10 107.790 H7 C3 H11 107.790
H8 C2 H9 107.669 H10 C3 H11 107.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.064      
2 C -0.249      
3 C -0.249      
4 H 0.059      
5 H 0.059      
6 H 0.084      
7 H 0.084      
8 H 0.069      
9 H 0.069      
10 H 0.069      
11 H 0.069      


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 0.084 0.084
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.528 0.000 0.000
y 0.000 -22.395 0.000
z 0.000 0.000 -22.023
Traceless
 xyz
x 0.681 0.000 0.000
y 0.000 -0.620 0.000
z 0.000 0.000 -0.062
Polar
3z2-r2-0.123
x2-y20.867
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.066 0.000 0.000
y 0.000 5.727 0.000
z 0.000 0.000 5.197


<r2> (average value of r2) Å2
<r2> 63.382
(<r2>)1/2 7.961