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All results from a given calculation for C3H8 (Propane)

using model chemistry: MP3=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/3-21G
 hartrees
Energy at 0K-117.927344
Energy at 298.15K-117.935806
HF Energy-117.612350
Nuclear repulsion energy81.835395
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 MP3=FULL/3-21G
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 3134 3134 44.39      
2 A1 3072 3072 18.38      
3 A1 3065 3065 12.66      
4 A1 1603 1603 4.83      
5 A1 1586 1586 0.30      
6 A1 1499 1499 4.17      
7 A1 1226 1226 1.85      
8 A1 862 862 0.82      
9 A1 382 382 0.19      
10 A2 3125 3125 0.00      
11 A2 1586 1586 0.00      
12 A2 1380 1380 0.00      
13 A2 969 969 0.00      
14 A2 235 235 0.00      
15 B1 3138 3138 83.06      
16 B1 3097 3097 0.74      
17 B1 1601 1601 12.62      
18 B1 1281 1281 0.42      
19 B1 780 780 4.39      
20 B1 280 280 0.00      
21 B2 3130 3130 24.38      
22 B2 3063 3063 25.05      
23 B2 1592 1592 2.54      
24 B2 1481 1481 4.40      
25 B2 1427 1427 1.87      
26 B2 1052 1052 1.81      
27 B2 972 972 2.61      

Unscaled Zero Point Vibrational Energy (zpe) 23308.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 23308.3 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 MP3=FULL/3-21G
ABC
0.95655 0.27733 0.24472

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.604
C2 0.000 1.283 -0.267
C3 0.000 -1.283 -0.267
H4 0.884 0.000 1.255
H5 -0.884 0.000 1.255
H6 0.000 2.185 0.357
H7 0.000 -2.185 0.357
H8 0.889 1.305 -0.910
H9 -0.889 1.305 -0.910
H10 -0.889 -1.305 -0.910
H11 0.889 -1.305 -0.910

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.55141.55141.09771.09772.19902.19902.18782.18782.18782.1878
C21.55142.56692.17852.17851.09653.52411.09711.09712.81152.8115
C31.55142.56692.17852.17853.52411.09652.81152.81151.09711.0971
H41.09772.17852.17851.76852.52242.52242.52773.08773.08772.5277
H51.09772.17852.17851.76852.52242.52243.08772.52772.52773.0877
H62.19901.09653.52412.52242.52244.37001.78011.78013.81793.8179
H72.19903.52411.09652.52242.52244.37003.81793.81791.78011.7801
H82.18781.09712.81152.52773.08771.78013.81791.77803.15842.6104
H92.18781.09712.81153.08772.52771.78013.81791.77802.61043.1584
H102.18782.81151.09713.08772.52773.81791.78013.15842.61041.7780
H112.18782.81151.09712.52773.08773.81791.78012.61043.15841.7780

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.123 C1 C2 H8 110.211
C1 C2 H9 110.211 C1 C3 H7 111.123
C1 C3 H10 110.211 C1 C3 H11 110.211
C2 C1 C3 111.635 C2 C1 H4 109.447
C2 C1 H5 109.447 C3 C1 H4 109.447
C3 C1 H5 109.447 H4 C1 H5 107.318
H6 C2 H8 108.483 H6 C2 H9 108.483
H7 C3 H10 108.483 H7 C3 H11 108.483
H8 C2 H9 108.253 H10 C3 H11 108.253
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability