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return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for (Propylene oxide)

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-193.110969
Energy at 298.15K-193.117886
Nuclear repulsion energy125.125614
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 B3PW91/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3170 3049 30.20      
2 A 3126 3006 30.08      
3 A 3105 2986 18.19      
4 A 3098 2979 13.37      
5 A 3084 2965 30.05      
6 A 3038 2921 17.14      
7 A 1531 1472 7.84      
8 A 1491 1433 6.08      
9 A 1476 1419 5.62      
10 A 1441 1386 21.08      
11 A 1397 1343 3.85      
12 A 1300 1250 5.75      
13 A 1186 1140 1.17      
14 A 1165 1120 4.48      
15 A 1156 1112 0.53      
16 A 1130 1086 7.53      
17 A 1042 1002 12.34      
18 A 989 951 14.68      
19 A 907 872 2.77      
20 A 865 832 38.04      
21 A 792 762 6.29      
22 A 408 393 4.91      
23 A 366 352 3.11      
24 A 211 203 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 18736.0 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 18016.5 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 B3PW91/cc-pVTZ
ABC
0.61218 0.22345 0.19938

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.825 -0.782 -0.244
C2 -1.503 0.099 -0.147
H3 -1.409 0.323 -1.210
H4 -2.077 -0.823 -0.040
H5 -2.067 0.904 0.331
C6 -0.151 -0.042 0.484
H7 -0.151 -0.262 1.551
C8 1.037 0.613 -0.058
H9 0.945 1.219 -0.955
H10 1.862 0.875 0.600

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10
O12.49112.67352.90953.39681.42552.10821.42302.12732.1287
C22.49111.09061.09191.09251.49822.19972.59322.81073.5328
H32.67351.09061.76881.77332.14173.08982.72022.53243.7792
H42.90951.09191.76881.76632.14332.55993.42963.76074.3367
H53.39681.09251.77331.76632.14202.55313.14263.29063.9386
C61.42551.49822.14172.14332.14201.08881.46132.20552.2150
H72.10822.19973.08982.55992.55311.08882.18303.11052.4998
C81.42302.59322.72023.42963.14261.46132.18301.08711.0866
H92.12732.81072.53243.76073.29062.20553.11051.08711.8377
H102.12873.53283.77924.33673.93862.21502.49981.08661.8377

picture of Propylene oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C6 C2 116.843 O1 C6 H7 113.274
O1 C6 C8 59.050 O1 C8 C6 59.221
O1 C8 H9 115.232 O1 C8 H10 115.385
C2 C6 H7 115.574 C2 C6 C8 122.375
H3 C2 H4 108.280 H3 C2 H5 108.640
H3 C2 C6 110.658 H4 C2 H5 107.914
H4 C2 C6 110.701 H5 C2 C6 110.559
C6 O1 C8 61.729 C6 C8 H9 119.141
C6 C8 H10 120.046 H7 C6 C8 116.992
H9 C8 H10 115.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.299      
2 C -0.245      
3 H 0.094      
4 H 0.096      
5 H 0.084      
6 C 0.059      
7 H 0.086      
8 C -0.027      
9 H 0.073      
10 H 0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.823 1.578 0.649 1.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.215 2.197 0.400
y 2.197 -26.068 -1.081
z 0.400 -1.081 -24.046
Traceless
 xyz
x 0.842 2.197 0.400
y 2.197 -1.938 -1.081
z 0.400 -1.081 1.095
Polar
3z2-r22.191
x2-y21.853
xy2.197
xz0.400
yz-1.081


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


<r2> (average value of r2) Å2
<r2> 74.444
(<r2>)1/2 8.628