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All results from a given calculation for C3H8 (Propane)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-119.015782
Energy at 298.15K-119.010254
HF Energy-119.155657
Nuclear repulsion energy82.322775
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 B3LYP/6-31G(2df,p)
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 3100 2992 50.21 82.41 0.60 0.75
2 A1 3029 2923 24.65 168.00 0.00 0.00
3 A1 3022 2916 21.71 138.46 0.11 0.19
4 A1 1514 1461 2.45 6.12 0.73 0.84
5 A1 1489 1437 0.01 33.38 0.75 0.86
6 A1 1422 1372 1.11 1.98 0.65 0.79
7 A1 1178 1136 1.05 2.76 0.39 0.56
8 A1 875 845 0.65 10.57 0.24 0.38
9 A1 364 351 0.14 0.25 0.17 0.29
10 A2 3088 2980 0.00 7.62 0.75 0.86
11 A2 1490 1438 0.00 31.29 0.75 0.86
12 A2 1317 1271 0.00 9.62 0.75 0.86
13 A2 908 877 0.00 0.01 0.75 0.86
14 A2 223 215 0.00 0.00 0.75 0.86
15 B1 3098 2990 92.93 34.17 0.75 0.86
16 B1 3047 2940 5.77 137.65 0.75 0.86
17 B1 1508 1456 8.95 0.05 0.75 0.86
18 B1 1216 1174 0.19 0.77 0.75 0.86
19 B1 750 724 3.13 0.10 0.75 0.86
20 B1 271 262 0.00 0.00 0.75 0.86
21 B2 3098 2989 27.94 54.53 0.75 0.86
22 B2 3025 2919 33.49 1.20 0.75 0.86
23 B2 1498 1446 1.15 0.49 0.75 0.86
24 B2 1403 1354 2.05 3.97 0.75 0.86
25 B2 1368 1320 5.97 0.18 0.75 0.86
26 B2 1061 1024 0.53 5.87 0.75 0.86
27 B2 929 897 1.49 0.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22645.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 21852.8 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 B3LYP/6-31G(2df,p)
ABC
0.98263 0.27935 0.24749

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.586
C2 0.000 1.276 -0.260
C3 0.000 -1.276 -0.260
H4 0.876 0.000 1.247
H5 -0.876 0.000 1.247
H6 0.000 2.174 0.366
H7 0.000 -2.174 0.366
H8 0.883 1.321 -0.907
H9 -0.883 1.321 -0.907
H10 -0.883 -1.321 -0.907
H11 0.883 -1.321 -0.907

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.53131.53131.09731.09732.18562.18562.18072.18072.18072.1807
C21.53132.55242.16022.16021.09473.50691.09591.09592.81852.8185
C31.53132.55242.16022.16023.50691.09472.81852.81851.09591.0959
H41.09732.16022.16021.75262.50442.50442.52653.07893.07892.5265
H51.09732.16022.16021.75262.50442.50443.07892.52652.52653.0789
H62.18561.09473.50692.50442.50444.34891.76891.76893.82333.8233
H72.18563.50691.09472.50442.50444.34893.82333.82331.76891.7689
H82.18071.09592.81852.52653.07891.76893.82331.76673.17812.6418
H92.18071.09592.81853.07892.52651.76893.82331.76672.64183.1781
H102.18072.81851.09593.07892.52653.82331.76893.17812.64181.7667
H112.18072.81851.09592.52653.07893.82331.76892.64183.17811.7667

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.562 C1 C2 H8 111.101
C1 C2 H9 111.101 C1 C3 H7 111.562
C1 C3 H10 111.101 C1 C3 H11 111.101
C2 C1 C3 112.870 C2 C1 H4 109.425
C2 C1 H5 109.425 C3 C1 H4 109.425
C3 C1 H5 109.425 H4 C1 H5 106.041
H6 C2 H8 107.723 H6 C2 H9 107.723
H7 C3 H10 107.723 H7 C3 H11 107.723
H8 C2 H9 107.443 H10 C3 H11 107.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.144      
2 C -0.357      
3 C -0.357      
4 H 0.096      
5 H 0.096      
6 H 0.110      
7 H 0.110      
8 H 0.112      
9 H 0.112      
10 H 0.112      
11 H 0.112      


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


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


<r2> (average value of r2) Å2
<r2> 63.613
(<r2>)1/2 7.976