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: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-118.674413
Energy at 298.15K-118.682875
HF Energy-118.263281
Nuclear repulsion energy82.654724
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=FULL/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 3194 3009 39.93 76.05 0.67 0.80
2 A1 3105 2926 34.87 39.75 0.36 0.53
3 A1 3102 2923 4.50 232.39 0.01 0.02
4 A1 1579 1488 4.37 6.04 0.74 0.85
5 A1 1558 1468 0.01 40.18 0.75 0.86
6 A1 1482 1396 3.26 2.19 0.74 0.85
7 A1 1223 1152 1.18 4.04 0.52 0.68
8 A1 915 862 1.00 10.13 0.26 0.42
9 A1 380 358 0.12 0.21 0.07 0.12
10 A2 3186 3002 0.00 5.52 0.75 0.86
11 A2 1556 1466 0.00 36.34 0.75 0.86
12 A2 1361 1282 0.00 12.48 0.75 0.86
13 A2 942 887 0.00 0.02 0.75 0.86
14 A2 236 222 0.00 0.00 0.75 0.86
15 B1 3193 3009 76.54 38.69 0.75 0.86
16 B1 3148 2966 6.61 123.12 0.75 0.86
17 B1 1574 1483 12.94 0.14 0.75 0.86
18 B1 1266 1193 0.17 1.09 0.75 0.86
19 B1 775 730 3.66 0.18 0.75 0.86
20 B1 293 276 0.00 0.01 0.75 0.86
21 B2 3192 3007 22.22 48.46 0.75 0.86
22 B2 3101 2922 28.22 3.24 0.75 0.86
23 B2 1563 1473 2.25 0.20 0.75 0.86
24 B2 1469 1384 5.56 4.76 0.75 0.86
25 B2 1417 1335 1.49 0.03 0.75 0.86
26 B2 1111 1047 0.26 6.43 0.75 0.86
27 B2 962 907 2.83 0.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23441.3 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 22086.4 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 111.571 C1 C2 H8 110.813
C1 C2 H9 110.813 C1 C3 H7 111.571
C1 C3 H10 110.813 C1 C3 H11 110.813
C2 C1 C3 112.351 C2 C1 H4 109.500
C2 C1 H5 109.500 C3 C1 H4 109.500
C3 C1 H5 109.500 H4 C1 H5 106.308
H6 C2 H8 107.895 H6 C2 H9 107.895
H7 C3 H10 107.895 H7 C3 H11 107.895
H8 C2 H9 107.700 H10 C3 H11 107.700
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability