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All results from a given calculation for C3H8 (Propane)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-21.766338
Energy at 298.15K-21.774620
HF Energy-21.766338
Nuclear repulsion energy49.190249
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 B3LYP/CEP-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 3102 2996 93.94 81.52 0.63 0.77
2 A1 3036 2932 8.62 294.78 0.05 0.09
3 A1 3033 2929 51.42 89.09 0.03 0.06
4 A1 1512 1460 6.71 4.50 0.65 0.79
5 A1 1488 1437 0.00 33.03 0.74 0.85
6 A1 1415 1367 4.10 3.55 0.05 0.10
7 A1 1165 1126 2.82 7.43 0.51 0.67
8 A1 869 839 1.23 14.53 0.23 0.37
9 A1 357 345 0.23 0.58 0.45 0.62
10 A2 3094 2988 0.00 5.08 0.75 0.86
11 A2 1490 1439 0.00 29.70 0.75 0.86
12 A2 1303 1259 0.00 15.00 0.75 0.86
13 A2 895 865 0.00 0.55 0.75 0.86
14 A2 218 210 0.00 0.04 0.75 0.86
15 B1 3108 3002 173.87 21.19 0.75 0.86
16 B1 3062 2957 2.26 153.80 0.75 0.86
17 B1 1507 1456 15.61 0.28 0.75 0.86
18 B1 1192 1151 0.82 0.47 0.75 0.86
19 B1 729 704 6.14 0.06 0.75 0.86
20 B1 267 258 0.00 0.05 0.75 0.86
21 B2 3097 2990 39.41 52.19 0.75 0.86
22 B2 3031 2927 52.64 6.43 0.75 0.86
23 B2 1497 1446 1.59 0.03 0.75 0.86
24 B2 1407 1358 4.94 0.82 0.75 0.86
25 B2 1348 1302 2.81 0.08 0.75 0.86
26 B2 1053 1017 0.58 8.98 0.75 0.86
27 B2 915 884 3.85 0.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22595.2 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 21820.2 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 B3LYP/CEP-31G*
ABC
0.95559 0.27525 0.24323

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.600
C2 0.000 1.286 -0.265
C3 0.000 -1.286 -0.265
H4 0.886 0.000 1.261
H5 -0.886 0.000 1.261
H6 0.000 2.196 0.362
H7 0.000 -2.196 0.362
H8 0.892 1.324 -0.917
H9 -0.892 1.324 -0.917
H10 -0.892 -1.324 -0.917
H11 0.892 -1.324 -0.917

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.54911.54911.10581.10582.20852.20852.20202.20202.20202.2020
C21.54912.57142.18322.18321.10503.53741.10581.10582.83402.8340
C31.54912.57142.18322.18323.53741.10502.83402.83401.10581.1058
H41.10582.18322.18321.77172.53272.53272.54933.10803.10802.5493
H51.10582.18322.18321.77172.53272.53273.10802.54932.54933.1080
H62.20851.10503.53742.53272.53274.39141.78671.78673.84963.8496
H72.20853.53741.10502.53272.53274.39143.84963.84961.78671.7867
H82.20201.10582.83402.54933.10801.78673.84961.78383.19262.6478
H92.20201.10582.83403.10802.54931.78673.84961.78382.64783.1926
H102.20202.83401.10583.10802.54933.84961.78673.19262.64781.7838
H112.20202.83401.10582.54933.10803.84961.78672.64783.19261.7838

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.536 C1 C2 H8 110.970
C1 C2 H9 110.970 C1 C3 H7 111.536
C1 C3 H10 110.970 C1 C3 H11 110.970
C2 C1 C3 112.189 C2 C1 H4 109.505
C2 C1 H5 109.505 C3 C1 H4 109.505
C3 C1 H5 109.505 H4 C1 H5 106.468
H6 C2 H8 107.836 H6 C2 H9 107.836
H7 C3 H10 107.836 H7 C3 H11 107.836
H8 C2 H9 107.524 H10 C3 H11 107.524
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.140      
2 C -0.490      
3 C -0.490      
4 H 0.120      
5 H 0.120      
6 H 0.167      
7 H 0.167      
8 H 0.136      
9 H 0.136      
10 H 0.136      
11 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.060 0.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.760 0.000 0.000
y 0.000 -21.909 0.000
z 0.000 0.000 -21.332
Traceless
 xyz
x 0.860 0.000 0.000
y 0.000 -0.863 0.000
z 0.000 0.000 0.002
Polar
3z2-r20.005
x2-y21.149
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.484 0.000 0.000
y 0.000 5.538 0.000
z 0.000 0.000 4.740


<r2> (average value of r2) Å2
<r2> 56.761
(<r2>)1/2 7.534