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 C3H6O (Propylene oxide)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-36.438856
Energy at 298.15K-36.445652
Nuclear repulsion energy68.401805
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-121G
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 3191 3110 40.43      
2 A 3114 3034 49.26      
3 A 3088 3009 19.65      
4 A 3080 3002 18.03      
5 A 3074 2995 36.01      
6 A 2991 2915 27.17      
7 A 1518 1479 2.86      
8 A 1517 1478 8.38      
9 A 1502 1463 7.03      
10 A 1443 1407 16.56      
11 A 1413 1377 8.29      
12 A 1268 1235 2.45      
13 A 1187 1157 1.47      
14 A 1147 1117 5.02      
15 A 1137 1108 3.09      
16 A 1096 1068 7.15      
17 A 1020 994 5.21      
18 A 948 924 8.44      
19 A 893 870 0.91      
20 A 785 765 46.28      
21 A 699 681 7.98      
22 A 396 386 3.65      
23 A 353 344 6.98      
24 A 199 194 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 18528.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 18056.1 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 B3LYP/CEP-121G
ABC
0.56301 0.21431 0.18852

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.871 -0.839 -0.281
C2 -1.515 0.105 -0.136
H3 -1.417 0.336 -1.204
H4 -2.094 -0.822 -0.038
H5 -2.080 0.915 0.347
C6 -0.147 -0.046 0.508
H7 -0.140 -0.306 1.568
C8 1.070 0.636 -0.040
H9 0.974 1.252 -0.934
H10 1.902 0.878 0.619

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10
O12.57072.73312.97573.49041.51302.17411.50812.19312.1959
C22.57071.09651.09751.09951.51992.22862.64072.85483.5838
H32.73311.09651.77741.78282.16573.11902.76182.57503.8249
H42.97571.09751.77741.77952.16622.58203.48393.81074.3922
H53.49041.09951.78281.77952.16492.59783.18563.32913.9911
C61.51301.51992.16572.16622.16491.09141.49902.24122.2505
H72.17412.22863.11902.58202.59781.09142.22223.15132.5441
C81.50812.64072.76183.48393.18561.49902.22221.08951.0888
H92.19312.85482.57503.81073.32912.24123.15131.08951.8469
H102.19593.58383.82494.39223.99112.25052.54411.08881.8469

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 115.898 O1 C6 H7 112.173
O1 C6 C8 60.088 O1 C8 C6 60.416
O1 C8 H9 114.231 O1 C8 H10 114.510
C2 C6 H7 116.203 C2 C6 C8 122.017
H3 C2 H4 108.213 H3 C2 H5 108.551
H3 C2 C6 110.686 H4 C2 H5 108.189
H4 C2 C6 110.670 H5 C2 C6 110.448
C6 O1 C8 59.497 C6 C8 H9 119.108
C6 C8 H10 120.000 H7 C6 C8 117.285
H9 C8 H10 115.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.313      
2 C -0.534      
3 H 0.162      
4 H 0.165      
5 H 0.147      
6 C 0.157      
7 H 0.152      
8 C -0.222      
9 H 0.144      
10 H 0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.135 2.179 0.971 2.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.541 2.966 0.695
y 2.966 -26.921 -1.426
z 0.695 -1.426 -24.337
Traceless
 xyz
x 1.088 2.966 0.695
y 2.966 -2.483 -1.426
z 0.695 -1.426 1.395
Polar
3z2-r22.789
x2-y22.380
xy2.966
xz0.695
yz-1.426


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.417 0.484 -0.287
y 0.484 5.167 -0.164
z -0.287 -0.164 5.029


<r2> (average value of r2) Å2
<r2> 66.320
(<r2>)1/2 8.144