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All results from a given calculation for C3H8 (Propane)

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3
 hartrees
Energy at 0K-118.993899
Energy at 298.15K-118.988320
HF Energy-118.263651
Nuclear repulsion energy82.732154
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/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 3262 3074 81.46 88.09 0.59 0.74
2 A1 3201 3016 0.24 289.08 0.04 0.07
3 A1 3194 3009 57.10 24.84 0.60 0.75
4 A1 1658 1563 2.13 3.70 0.75 0.86
5 A1 1636 1541 0.17 42.90 0.75 0.86
6 A1 1571 1481 1.53 1.51 0.67 0.80
7 A1 1286 1212 0.90 4.31 0.41 0.58
8 A1 930 877 0.46 14.49 0.23 0.38
9 A1 393 370 0.03 0.35 0.09 0.16
10 A2 3250 3062 0.00 7.19 0.75 0.86
11 A2 1635 1540 0.00 37.40 0.75 0.86
12 A2 1436 1353 0.00 12.25 0.75 0.86
13 A2 985 928 0.00 0.03 0.75 0.86
14 A2 234 220 0.00 0.00 0.75 0.86
15 B1 3265 3076 147.63 32.18 0.75 0.86
16 B1 3217 3031 4.70 167.68 0.75 0.86
17 B1 1652 1557 9.18 0.13 0.75 0.86
18 B1 1331 1254 0.02 0.81 0.75 0.86
19 B1 808 761 1.86 0.17 0.75 0.86
20 B1 293 276 0.00 0.01 0.75 0.86
21 B2 3258 3070 43.29 63.03 0.75 0.86
22 B2 3193 3009 44.82 3.29 0.75 0.86
23 B2 1642 1547 0.94 0.21 0.75 0.86
24 B2 1561 1471 2.95 2.34 0.75 0.86
25 B2 1503 1416 3.70 0.04 0.75 0.86
26 B2 1128 1063 0.44 9.03 0.75 0.86
27 B2 1014 955 1.19 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 24268.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 22865.7 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=FULL/6-31G*
ABC
0.98233 0.28335 0.25063

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.266 -0.260
C3 0.000 -1.266 -0.260
H4 0.877 0.000 1.245
H5 -0.877 0.000 1.245
H6 0.000 2.167 0.361
H7 0.000 -2.167 0.361
H8 0.884 1.303 -0.905
H9 -0.884 1.303 -0.905
H10 -0.884 -1.303 -0.905
H11 0.884 -1.303 -0.905

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52451.52451.09571.09572.17852.17852.16952.16952.16952.1695
C21.52452.53292.15402.15401.09353.48871.09421.09422.79222.7922
C31.52452.53292.15402.15403.48871.09352.79222.79221.09421.0942
H41.09572.15402.15401.75372.49912.49912.51393.06903.06902.5139
H51.09572.15402.15401.75372.49912.49913.06902.51392.51393.0690
H62.17851.09353.48872.49912.49914.33311.76871.76873.79703.7970
H72.17853.48871.09352.49912.49914.33313.79703.79701.76871.7687
H82.16951.09422.79222.51393.06901.76873.79701.76713.14802.6053
H92.16951.09422.79223.06902.51391.76873.79701.76712.60533.1480
H102.16952.79221.09423.06902.51393.79701.76873.14802.60531.7671
H112.16952.79221.09422.51393.06903.79701.76872.60533.14801.7671

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.357 C1 C2 H8 111.096
C1 C2 H9 111.096 C1 C3 H7 111.357
C1 C3 H10 111.096 C1 C3 H11 111.096
C2 C1 C3 112.791 C2 C1 H4 109.391
C2 C1 H5 109.391 C3 C1 H4 109.391
C3 C1 H5 109.391 H4 C1 H5 106.274
H6 C2 H8 107.749 H6 C2 H9 107.749
H7 C3 H10 107.749 H7 C3 H11 107.749
H8 C2 H9 107.620 H10 C3 H11 107.620
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability