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All results from a given calculation for C3H8 (Propane)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-119.124732
Energy at 298.15K-119.133096
HF Energy-119.124732
Nuclear repulsion energy82.613822
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 mPW1PW91/6-31G(2df,p)
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 3139 2997 42.95 82.33 0.61 0.76
2 A1 3055 2917 37.75 78.83 0.03 0.06
3 A1 3053 2915 6.89 231.67 0.05 0.09
4 A1 1515 1446 3.72 6.68 0.74 0.85
5 A1 1491 1424 0.00 30.94 0.75 0.86
6 A1 1421 1357 2.20 1.66 0.70 0.83
7 A1 1182 1129 1.31 2.47 0.33 0.49
8 A1 893 853 0.96 10.10 0.23 0.38
9 A1 363 347 0.18 0.24 0.19 0.32
10 A2 3127 2985 0.00 7.55 0.75 0.86
11 A2 1491 1424 0.00 30.21 0.75 0.86
12 A2 1320 1261 0.00 8.64 0.75 0.86
13 A2 908 867 0.00 0.00 0.75 0.86
14 A2 225 214 0.00 0.00 0.75 0.86
15 B1 3136 2994 81.01 33.08 0.75 0.86
16 B1 3086 2946 4.50 139.27 0.75 0.86
17 B1 1510 1442 11.46 0.05 0.75 0.86
18 B1 1216 1161 0.33 0.57 0.75 0.86
19 B1 749 715 4.10 0.09 0.75 0.86
20 B1 274 261 0.00 0.00 0.75 0.86
21 B2 3137 2994 24.22 53.84 0.75 0.86
22 B2 3052 2914 33.21 1.26 0.75 0.86
23 B2 1499 1432 1.48 0.48 0.75 0.86
24 B2 1406 1343 4.80 3.45 0.75 0.86
25 B2 1367 1305 2.81 0.00 0.75 0.86
26 B2 1083 1034 0.40 5.75 0.75 0.86
27 B2 930 888 2.29 0.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 22814.3 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 21780.8 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 mPW1PW91/6-31G(2df,p)
ABC
0.98737 0.28205 0.24981

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.585
C2 0.000 1.269 -0.259
C3 0.000 -1.269 -0.259
H4 0.875 0.000 1.244
H5 -0.875 0.000 1.244
H6 0.000 2.167 0.365
H7 0.000 -2.167 0.365
H8 0.882 1.313 -0.905
H9 -0.882 1.313 -0.905
H10 -0.882 -1.313 -0.905
H11 0.882 -1.313 -0.905

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52391.52391.09581.09582.17852.17852.17272.17272.17272.1727
C21.52392.53872.15312.15311.09313.49281.09441.09442.80432.8043
C31.52392.53872.15312.15313.49281.09312.80432.80431.09441.0944
H41.09582.15312.15311.74992.49742.49742.51873.07093.07092.5187
H51.09582.15312.15311.74992.49742.49743.07092.51872.51873.0709
H62.17851.09313.49282.49742.49744.33481.76641.76643.80823.8082
H72.17853.49281.09312.49742.49744.33483.80823.80821.76641.7664
H82.17271.09442.80432.51873.07091.76643.80821.76403.16332.6258
H92.17271.09442.80433.07092.51871.76643.80821.76402.62583.1633
H102.17272.80431.09443.07092.51873.80821.76643.16332.62581.7640
H112.17272.80431.09442.51873.07093.80821.76642.62583.16331.7640

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.642 C1 C2 H8 111.099
C1 C2 H9 111.099 C1 C3 H7 111.642
C1 C3 H10 111.099 C1 C3 H11 111.099
C2 C1 C3 112.807 C2 C1 H4 109.459
C2 C1 H5 109.459 C3 C1 H4 109.459
C3 C1 H5 109.459 H4 C1 H5 105.969
H6 C2 H8 107.705 H6 C2 H9 107.705
H7 C3 H10 107.705 H7 C3 H11 107.705
H8 C2 H9 107.397 H10 C3 H11 107.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 C -0.433      
3 C -0.433      
4 H 0.126      
5 H 0.126      
6 H 0.138      
7 H 0.138      
8 H 0.139      
9 H 0.139      
10 H 0.139      
11 H 0.139      


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 0.059 0.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.930 0.000 0.000
y 0.000 -21.652 0.000
z 0.000 0.000 -21.297
Traceless
 xyz
x 0.544 0.000 0.000
y 0.000 -0.539 0.000
z 0.000 0.000 -0.006
Polar
3z2-r2-0.011
x2-y20.722
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.812 0.000 0.000
y 0.000 5.584 0.000
z 0.000 0.000 4.976


<r2> (average value of r2) Å2
<r2> 63.060
(<r2>)1/2 7.941