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All results from a given calculation for C3H8 (Propane)

using model chemistry: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-117.045298
Energy at 298.15K-117.053572
HF Energy-116.883959
Nuclear repulsion energy81.294985
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 MP2/STO-3G
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 3555 3100 5.30 31.86 0.73 0.84
2 A1 3408 2971 5.82 32.87 0.17 0.29
3 A1 3374 2941 2.10 64.02 0.00 0.01
4 A1 1750 1526 0.43 7.38 0.75 0.85
5 A1 1717 1497 0.35 33.46 0.75 0.86
6 A1 1630 1421 0.00 3.40 0.68 0.81
7 A1 1312 1144 1.82 5.11 0.54 0.70
8 A1 977 852 0.56 8.59 0.29 0.45
9 A1 388 338 0.17 0.22 0.29 0.45
10 A2 3554 3099 0.00 2.33 0.75 0.86
11 A2 1735 1512 0.00 29.93 0.75 0.86
12 A2 1463 1275 0.00 14.77 0.75 0.86
13 A2 1021 890 0.00 0.01 0.75 0.86
14 A2 218 190 0.00 0.00 0.75 0.86
15 B1 3556 3100 10.12 25.34 0.75 0.86
16 B1 3518 3067 2.84 41.59 0.75 0.86
17 B1 1740 1517 2.57 1.05 0.75 0.86
18 B1 1365 1190 0.42 3.64 0.75 0.86
19 B1 825 719 3.30 0.02 0.75 0.86
20 B1 261 227 0.00 0.01 0.75 0.86
21 B2 3554 3098 2.10 19.67 0.75 0.86
22 B2 3375 2942 4.92 2.82 0.75 0.86
23 B2 1741 1518 0.17 0.00 0.75 0.86
24 B2 1625 1417 0.00 6.02 0.75 0.86
25 B2 1548 1349 10.58 0.10 0.75 0.86
26 B2 1184 1033 0.09 7.84 0.75 0.86
27 B2 1049 915 1.45 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25719.6 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 22424.9 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 MP2/STO-3G
ABC
0.95223 0.27227 0.24087

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.601
C2 0.000 1.295 -0.268
C3 0.000 -1.295 -0.268
H4 0.890 0.000 1.258
H5 -0.890 0.000 1.258
H6 0.000 2.194 0.372
H7 0.000 -2.194 0.372
H8 0.893 1.331 -0.914
H9 -0.893 1.331 -0.914
H10 -0.893 -1.331 -0.914
H11 0.893 -1.331 -0.914

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.55941.55941.10641.10642.20642.20642.20572.20572.20572.2057
C21.55942.59012.19032.19031.10343.54761.10331.10332.84812.8481
C31.55942.59012.19032.19033.54761.10342.84812.84811.10331.1033
H41.10642.19032.19031.78062.52862.52862.54743.10983.10982.5474
H51.10642.19032.19031.78062.52862.52863.10982.54742.54743.1098
H62.20641.10343.54762.52862.52864.38891.78801.78803.85733.8573
H72.20643.54761.10342.52862.52864.38893.85733.85731.78801.7880
H82.20571.10332.84812.54743.10981.78803.85731.78683.20592.6617
H92.20571.10332.84813.10982.54741.78803.85731.78682.66173.2059
H102.20572.84811.10333.10982.54743.85731.78803.20592.66171.7868
H112.20572.84811.10332.54743.10983.85731.78802.66173.20591.7868

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.744 C1 C2 H8 110.691
C1 C2 H9 110.691 C1 C3 H7 110.744
C1 C3 H10 110.691 C1 C3 H11 110.691
C2 C1 C3 112.293 C2 C1 H4 109.315
C2 C1 H5 109.315 C3 C1 H4 109.315
C3 C1 H5 109.315 H4 C1 H5 107.154
H6 C2 H8 108.238 H6 C2 H9 108.238
H7 C3 H10 108.238 H7 C3 H11 108.238
H8 C2 H9 108.141 H10 C3 H11 108.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability