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: B2PLYP=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-119.004184
Energy at 298.15K-119.012581
HF Energy-118.852138
Nuclear repulsion energy82.509251
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 B2PLYP=FULL/6-31+G**
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 3147 2993 54.17 97.34 0.60 0.75
2 A1 3068 2918 0.41 363.34 0.02 0.03
3 A1 3067 2917 54.49 23.88 0.68 0.81
4 A1 1539 1463 5.64 2.72 0.75 0.86
5 A1 1519 1444 0.05 21.71 0.71 0.83
6 A1 1448 1377 3.24 1.14 0.12 0.22
7 A1 1196 1137 0.85 1.73 0.25 0.40
8 A1 888 845 0.70 12.40 0.22 0.35
9 A1 371 353 0.02 0.35 0.23 0.38
10 A2 3137 2983 0.00 8.55 0.75 0.86
11 A2 1518 1443 0.00 19.19 0.75 0.86
12 A2 1332 1267 0.00 6.67 0.75 0.86
13 A2 922 877 0.00 0.03 0.75 0.86
14 A2 225 214 0.00 0.02 0.75 0.86
15 B1 3146 2992 102.38 35.71 0.75 0.86
16 B1 3100 2948 5.57 151.38 0.75 0.86
17 B1 1534 1459 15.50 0.00 0.75 0.86
18 B1 1235 1174 0.04 0.01 0.75 0.86
19 B1 761 724 2.42 0.15 0.75 0.86
20 B1 279 265 0.00 0.00 0.75 0.86
21 B2 3145 2991 30.01 56.42 0.75 0.86
22 B2 3065 2915 41.98 1.92 0.75 0.86
23 B2 1524 1449 2.63 0.07 0.75 0.86
24 B2 1433 1363 5.61 0.67 0.75 0.86
25 B2 1388 1320 2.68 0.13 0.75 0.86
26 B2 1079 1026 0.70 7.98 0.75 0.86
27 B2 944 898 1.52 0.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 23003.7 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 21876.6 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 B2PLYP=FULL/6-31+G**
ABC
0.98445 0.28097 0.24880

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.587
C2 0.000 1.273 -0.260
C3 0.000 -1.273 -0.260
H4 0.876 0.000 1.244
H5 -0.876 0.000 1.244
H6 0.000 2.170 0.363
H7 0.000 -2.170 0.363
H8 0.882 1.313 -0.904
H9 -0.882 1.313 -0.904
H10 -0.882 -1.313 -0.904
H11 0.882 -1.313 -0.904

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52891.52891.09461.09462.18142.18142.17442.17442.17442.1744
C21.52892.54542.15602.15601.09233.49841.09331.09332.80722.8072
C31.52892.54542.15602.15603.49841.09232.80722.80721.09331.0933
H41.09462.15602.15601.75162.50022.50022.51793.07093.07092.5179
H51.09462.15602.15601.75162.50022.50023.07092.51792.51793.0709
H62.18141.09233.49842.50022.50024.33971.76601.76603.81003.8100
H72.18143.49841.09232.50022.50024.33973.81003.81001.76601.7660
H82.17441.09332.80722.51793.07091.76603.81001.76453.16412.6264
H92.17441.09332.80723.07092.51791.76603.81001.76452.62643.1641
H102.17442.80721.09333.07092.51793.81001.76603.16412.62641.7645
H112.17442.80721.09332.51793.07093.81001.76602.62643.16411.7645

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.567 C1 C2 H8 110.947
C1 C2 H9 110.947 C1 C3 H7 111.567
C1 C3 H10 110.947 C1 C3 H11 110.947
C2 C1 C3 112.691 C2 C1 H4 109.417
C2 C1 H5 109.417 C3 C1 H4 109.417
C3 C1 H5 109.417 H4 C1 H5 106.279
H6 C2 H8 107.804 H6 C2 H9 107.804
H7 C3 H10 107.804 H7 C3 H11 107.804
H8 C2 H9 107.602 H10 C3 H11 107.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability