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: CCSD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-118.788199
Energy at 298.15K-118.796572
HF Energy-118.275324
Nuclear repulsion energy81.919911
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 CCSD/aug-cc-pVDZ
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 3111 2997 51.85      
2 A1 3035 2924 17.78      
3 A1 3030 2919 33.27      
4 A1 1504 1449 3.23      
5 A1 1483 1429 0.14      
6 A1 1415 1364 1.90      
7 A1 1179 1136 0.51      
8 A1 890 857 0.54      
9 A1 367 353 0.02      
10 A2 3097 2984 0.00      
11 A2 1482 1428 0.00      
12 A2 1311 1263 0.00      
13 A2 902 869 0.00      
14 A2 220 212 0.00      
15 B1 3107 2993 102.69      
16 B1 3066 2954 3.18      
17 B1 1500 1445 10.31      
18 B1 1211 1167 0.01      
19 B1 746 719 1.54      
20 B1 276 266 0.00      
21 B2 3108 2994 33.11      
22 B2 3027 2917 34.89      
23 B2 1487 1433 1.14      
24 B2 1406 1355 3.78      
25 B2 1362 1312 2.27      
26 B2 1082 1042 0.34      
27 B2 924 891 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 22663.8 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 21834.3 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 CCSD/aug-cc-pVDZ
ABC
0.96478 0.27847 0.24637

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.593
C2 0.000 1.277 -0.262
C3 0.000 -1.277 -0.262
H4 0.886 0.000 1.255
H5 -0.886 0.000 1.255
H6 0.000 2.185 0.366
H7 0.000 -2.185 0.366
H8 0.892 1.315 -0.913
H9 -0.892 1.315 -0.913
H10 -0.892 -1.315 -0.913
H11 0.892 -1.315 -0.913

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.53741.53741.10591.10592.19672.19672.18992.18992.18992.1899
C21.53742.55442.17242.17241.10393.51861.10521.10522.81792.8179
C31.53742.55442.17242.17243.51861.10392.81792.81791.10521.1052
H41.10592.17242.17241.77182.51992.51992.53623.09753.09752.5362
H51.10592.17242.17241.77182.51992.51993.09752.53622.53623.0975
H62.19671.10393.51862.51992.51994.36981.78561.78563.83183.8318
H72.19673.51861.10392.51992.51994.36983.83183.83181.78561.7856
H82.18991.10522.81792.53623.09751.78563.83181.78483.17872.6304
H92.18991.10522.81793.09752.53621.78563.83181.78482.63043.1787
H102.18992.81791.10523.09752.53623.83181.78563.17872.63041.7848
H112.18992.81791.10522.53623.09753.83181.78562.63043.17871.7848

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.496 C1 C2 H8 110.877
C1 C2 H9 110.877 C1 C3 H7 111.496
C1 C3 H10 110.877 C1 C3 H11 110.877
C2 C1 C3 112.354 C2 C1 H4 109.462
C2 C1 H5 109.462 C3 C1 H4 109.462
C3 C1 H5 109.462 H4 C1 H5 106.466
H6 C2 H8 107.866 H6 C2 H9 107.866
H7 C3 H10 107.866 H7 C3 H11 107.866
H8 C2 H9 107.701 H10 C3 H11 107.701
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability