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: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-118.958111
Energy at 298.15K-118.966529
HF Energy-118.958111
Nuclear repulsion energy82.402312
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/6-31G
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 3150 3011 50.40 85.02 0.62 0.76
2 A1 3059 2924 5.33 286.97 0.01 0.02
3 A1 3057 2922 45.16 36.40 0.47 0.64
4 A1 1557 1489 8.95 8.66 0.73 0.85
5 A1 1541 1473 0.09 46.53 0.75 0.86
6 A1 1467 1402 5.55 2.65 0.70 0.82
7 A1 1213 1159 2.55 4.14 0.54 0.70
8 A1 905 865 1.46 10.75 0.28 0.44
9 A1 378 361 0.28 0.24 0.10 0.18
10 A2 3137 2998 0.00 6.56 0.75 0.86
11 A2 1536 1468 0.00 42.86 0.75 0.86
12 A2 1344 1285 0.00 14.91 0.75 0.86
13 A2 944 903 0.00 0.03 0.75 0.86
14 A2 222 212 0.00 0.00 0.75 0.86
15 B1 3148 3009 96.96 36.44 0.75 0.86
16 B1 3093 2956 5.62 148.59 0.75 0.86
17 B1 1552 1484 18.65 0.08 0.75 0.86
18 B1 1250 1195 0.83 0.75 0.75 0.86
19 B1 778 744 6.68 0.19 0.75 0.86
20 B1 272 260 0.00 0.01 0.75 0.86
21 B2 3147 3008 28.63 55.73 0.75 0.86
22 B2 3056 2921 37.15 2.12 0.75 0.86
23 B2 1542 1474 4.30 0.38 0.75 0.86
24 B2 1449 1385 9.28 4.92 0.75 0.86
25 B2 1404 1342 2.48 1.32 0.75 0.86
26 B2 1108 1059 1.08 6.15 0.75 0.86
27 B2 963 921 4.73 0.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23135.0 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 22114.8 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/6-31G
ABC
0.97957 0.28098 0.24870

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.588
C2 0.000 1.272 -0.260
C3 0.000 -1.272 -0.260
H4 0.878 0.000 1.248
H5 -0.878 0.000 1.248
H6 0.000 2.173 0.363
H7 0.000 -2.173 0.363
H8 0.885 1.311 -0.907
H9 -0.885 1.311 -0.907
H10 -0.885 -1.311 -0.907
H11 0.885 -1.311 -0.907

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52901.52901.09861.09862.18462.18462.17692.17692.17692.1769
C21.52902.54412.15992.15991.09563.50091.09681.09682.80642.8064
C31.52902.54412.15992.15993.50091.09562.80642.80641.09681.0968
H41.09862.15992.15991.75652.50532.50532.52303.07803.07802.5230
H51.09862.15992.15991.75652.50532.50533.07802.52302.52303.0780
H62.18461.09563.50092.50532.50534.34591.77171.77173.81283.8128
H72.18463.50091.09562.50532.50534.34593.81283.81281.77171.7717
H82.17691.09682.80642.52303.07801.77173.81281.76973.16412.6230
H92.17691.09682.80643.07802.52301.77173.81281.76972.62303.1641
H102.17692.80641.09683.07802.52303.81281.77173.16412.62301.7697
H112.17692.80641.09682.52303.07803.81281.77172.62303.16411.7697

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.612 C1 C2 H8 110.928
C1 C2 H9 110.928 C1 C3 H7 111.612
C1 C3 H10 110.928 C1 C3 H11 110.928
C2 C1 C3 112.591 C2 C1 H4 109.474
C2 C1 H5 109.474 C3 C1 H4 109.474
C3 C1 H5 109.474 H4 C1 H5 106.148
H6 C2 H8 107.820 H6 C2 H9 107.820
H7 C3 H10 107.820 H7 C3 H11 107.820
H8 C2 H9 107.562 H10 C3 H11 107.562
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.317      
2 C -0.486      
3 C -0.486      
4 H 0.161      
5 H 0.161      
6 H 0.162      
7 H 0.162      
8 H 0.161      
9 H 0.161      
10 H 0.161      
11 H 0.161      


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 0.045 0.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.263 0.000 0.000
y 0.000 -21.748 0.000
z 0.000 0.000 -21.545
Traceless
 xyz
x 0.384 0.000 0.000
y 0.000 -0.344 0.000
z 0.000 0.000 -0.039
Polar
3z2-r2-0.079
x2-y20.485
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.684 0.000 0.000
y 0.000 5.230 0.000
z 0.000 0.000 4.767


<r2> (average value of r2) Å2
<r2> 63.415
(<r2>)1/2 7.963