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: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-118.768730
Energy at 298.15K-118.777134
HF Energy-118.271551
Nuclear repulsion energy81.949459
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 QCISD/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 3136 3009 48.04      
2 A1 3055 2931 5.62      
3 A1 3048 2925 44.73      
4 A1 1511 1450 2.74      
5 A1 1489 1429 0.13      
6 A1 1426 1368 1.17      
7 A1 1185 1137 0.67      
8 A1 898 861 0.63      
9 A1 367 352 0.03      
10 A2 3124 2997 0.00      
11 A2 1488 1428 0.00      
12 A2 1319 1265 0.00      
13 A2 908 871 0.00      
14 A2 229 220 0.00      
15 B1 3133 3006 94.67      
16 B1 3088 2963 6.36      
17 B1 1505 1444 10.05      
18 B1 1220 1170 0.08      
19 B1 753 723 1.88      
20 B1 286 274 0.00      
21 B2 3134 3006 28.00      
22 B2 3047 2924 35.27      
23 B2 1497 1436 1.03      
24 B2 1421 1363 3.61      
25 B2 1371 1316 3.63      
26 B2 1092 1047 0.22      
27 B2 932 895 0.92      

Unscaled Zero Point Vibrational Energy (zpe) 22831.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 21904.1 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 QCISD/cc-pVDZ
ABC
0.96622 0.27888 0.24682

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.591
C2 0.000 1.276 -0.261
C3 0.000 -1.276 -0.261
H4 0.886 0.000 1.256
H5 -0.886 0.000 1.256
H6 0.000 2.185 0.367
H7 0.000 -2.185 0.367
H8 0.893 1.315 -0.914
H9 -0.893 1.315 -0.914
H10 -0.893 -1.315 -0.914
H11 0.893 -1.315 -0.914

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.53451.53451.10771.10772.19612.19612.18882.18882.18882.1888
C21.53452.55162.17142.17141.10523.51711.10661.10662.81652.8165
C31.53452.55162.17142.17143.51711.10522.81652.81651.10661.1066
H41.10772.17142.17141.77242.51942.51942.53683.09863.09862.5368
H51.10772.17142.17141.77242.51942.51943.09862.53682.53683.0986
H62.19611.10523.51712.51942.51944.36931.78781.78783.83193.8319
H72.19613.51711.10522.51942.51944.36933.83193.83191.78781.7878
H82.18881.10662.81652.53683.09861.78783.83191.78603.17842.6291
H92.18881.10662.81653.09862.53681.78783.83191.78602.62913.1784
H102.18882.81651.10663.09862.53683.83191.78783.17842.62911.7860
H112.18882.81651.10662.53683.09863.83191.78782.62913.17841.7860

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.563 C1 C2 H8 110.897
C1 C2 H9 110.897 C1 C3 H7 111.563
C1 C3 H10 110.897 C1 C3 H11 110.897
C2 C1 C3 112.486 C2 C1 H4 109.474
C2 C1 H5 109.474 C3 C1 H4 109.474
C3 C1 H5 109.474 H4 C1 H5 106.266
H6 C2 H8 107.857 H6 C2 H9 107.857
H7 C3 H10 107.857 H7 C3 H11 107.857
H8 C2 H9 107.605 H10 C3 H11 107.605
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability