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All results from a given calculation for C3H8 (Propane)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-118.315565
Energy at 298.15K-118.323921
HF Energy-118.315565
Nuclear repulsion energy81.742039
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 PBEPBE/3-21G
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 3052 3024 42.47 76.75 0.60 0.75
2 A1 2977 2950 35.06 23.46 0.75 0.86
3 A1 2975 2948 1.00 254.91 0.02 0.03
4 A1 1530 1516 6.72 23.27 0.74 0.85
5 A1 1505 1491 1.23 33.48 0.75 0.86
6 A1 1419 1406 5.58 3.91 0.59 0.74
7 A1 1169 1159 2.99 3.62 0.61 0.76
8 A1 858 850 1.42 8.70 0.28 0.44
9 A1 367 364 0.38 0.23 0.16 0.28
10 A2 3041 3013 0.00 5.77 0.75 0.86
11 A2 1510 1496 0.00 45.57 0.75 0.86
12 A2 1318 1306 0.00 13.95 0.75 0.86
13 A2 924 916 0.00 0.00 0.75 0.86
14 A2 226 224 0.00 0.00 0.75 0.86
15 B1 3055 3027 78.74 20.60 0.75 0.86
16 B1 3005 2977 1.30 140.67 0.75 0.86
17 B1 1529 1515 17.28 0.07 0.75 0.86
18 B1 1206 1195 1.40 1.25 0.75 0.86
19 B1 752 745 7.76 0.15 0.75 0.86
20 B1 271 269 0.00 0.01 0.75 0.86
21 B2 3048 3021 24.21 48.41 0.75 0.86
22 B2 2973 2946 29.05 1.69 0.75 0.86
23 B2 1516 1503 3.83 0.28 0.75 0.86
24 B2 1401 1388 7.14 5.96 0.75 0.86
25 B2 1346 1334 3.11 3.79 0.75 0.86
26 B2 1038 1028 2.03 4.06 0.75 0.86
27 B2 933 925 5.09 0.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22472.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 22267.7 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 PBEPBE/3-21G
ABC
0.95149 0.27841 0.24566

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.603
C2 0.000 1.278 -0.266
C3 0.000 -1.278 -0.266
H4 0.890 0.000 1.260
H5 -0.890 0.000 1.260
H6 0.000 2.189 0.359
H7 0.000 -2.189 0.359
H8 0.894 1.303 -0.915
H9 -0.894 1.303 -0.915
H10 -0.894 -1.303 -0.915
H11 0.894 -1.303 -0.915

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.54571.54571.10671.10672.20292.20292.19142.19142.19142.1914
C21.54572.55682.18112.18111.10453.52351.10541.10542.80802.8080
C31.54572.55682.18112.18113.52351.10452.80802.80801.10541.1054
H41.10672.18112.18111.78032.52962.52962.53613.10103.10102.5361
H51.10672.18112.18111.78032.52962.52963.10102.53612.53613.1010
H62.20291.10453.52352.52962.52964.37861.79121.79123.82343.8234
H72.20293.52351.10452.52962.52964.37863.82343.82341.79121.7912
H82.19141.10542.80802.53613.10101.79123.82341.78873.16072.6059
H92.19141.10542.80803.10102.53611.79123.82341.78872.60593.1607
H102.19142.80801.10543.10102.53613.82341.79123.16072.60591.7887
H112.19142.80801.10542.53613.10103.82341.79122.60593.16071.7887

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.355 C1 C2 H8 110.398
C1 C2 H9 110.398 C1 C3 H7 111.355
C1 C3 H10 110.398 C1 C3 H11 110.398
C2 C1 C3 111.591 C2 C1 H4 109.514
C2 C1 H5 109.514 C3 C1 H4 109.514
C3 C1 H5 109.514 H4 C1 H5 107.088
H6 C2 H8 108.289 H6 C2 H9 108.289
H7 C3 H10 108.289 H7 C3 H11 108.289
H8 C2 H9 108.009 H10 C3 H11 108.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.423      
2 C -0.588      
3 C -0.588      
4 H 0.202      
5 H 0.202      
6 H 0.199      
7 H 0.199      
8 H 0.199      
9 H 0.199      
10 H 0.199      
11 H 0.199      


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 0.027 0.027
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.291 0.000 0.000
y 0.000 -21.737 0.000
z 0.000 0.000 -21.558
Traceless
 xyz
x 0.357 0.000 0.000
y 0.000 -0.313 0.000
z 0.000 0.000 -0.044
Polar
3z2-r2-0.088
x2-y20.446
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.529 0.000 0.000
y 0.000 5.191 0.000
z 0.000 0.000 4.638


<r2> (average value of r2) Å2
<r2> 64.035
(<r2>)1/2 8.002