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 C2H4O3 (1,2,3-trioxolane)

using model chemistry: HSEh1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G**
 hartrees
Energy at 0K-303.797263
Energy at 298.15K-303.803852
HF Energy-303.797263
Nuclear repulsion energy194.252634
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 HSEh1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3166 3021 28.38      
2 A' 3083 2942 46.39      
3 A' 1529 1459 0.20      
4 A' 1354 1292 0.31      
5 A' 1253 1195 0.75      
6 A' 1037 990 36.40      
7 A' 971 927 11.65      
8 A' 952 909 0.20      
9 A' 871 831 0.41      
10 A' 729 696 1.41      
11 A' 420 400 4.48      
12 A" 3150 3006 0.49      
13 A" 3073 2932 26.62      
14 A" 1511 1442 0.13      
15 A" 1353 1291 3.24      
16 A" 1231 1175 0.00      
17 A" 1163 1110 0.01      
18 A" 1060 1011 2.16      
19 A" 771 736 44.74      
20 A" 739 706 2.64      
21 A" 118 113 4.45      

Unscaled Zero Point Vibrational Energy (zpe) 14766.2 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 14091.4 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 HSEh1PBE/6-31G**
ABC
0.27719 0.25596 0.14917

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.553 -1.045 0.000
O2 0.137 -0.488 1.098
O3 0.137 -0.488 -1.098
C4 0.137 0.893 0.775
C5 0.137 0.893 -0.775
H6 1.042 1.320 1.213
H7 1.042 1.320 -1.213
H8 -0.749 1.403 1.171
H9 -0.749 1.403 -1.171

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.41081.41082.19832.19833.09923.09922.72032.7203
O21.41082.19501.41822.32692.02463.07012.08923.0833
O31.41082.19502.32691.41823.07012.02463.08332.0892
C42.19831.41822.32691.55051.09212.22611.09632.1986
C52.19832.32691.41821.55052.22611.09212.19861.0963
H63.09922.02463.07011.09212.22612.42671.79372.9836
H73.09923.07012.02462.22611.09212.42672.98361.7937
H82.72032.08923.08331.09632.19861.79372.98362.3424
H92.72033.08332.08922.19861.09632.98361.79372.3424

picture of 1,2,3-trioxolane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 C4 101.984 O1 O3 C5 101.984
O2 O1 O3 102.145 O2 C4 C5 103.134
O2 C4 H6 106.796 O2 C4 H8 111.746
O3 C5 C4 103.134 O3 C5 H7 106.796
O3 C5 H9 111.746 C4 C5 H7 113.649
C4 C5 H9 111.171 C5 C4 H6 113.649
C5 C4 H8 111.171 H6 C4 H8 110.104
H7 C5 H9 110.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.063      
2 O -0.260      
3 O -0.260      
4 C -0.011      
5 C -0.011      
6 H 0.158      
7 H 0.158      
8 H 0.144      
9 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.318 3.431 0.000 3.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.829 0.692 0.000
y 0.692 -27.375 0.000
z 0.000 0.000 -29.244
Traceless
 xyz
x 0.481 0.692 0.000
y 0.692 1.161 0.000
z 0.000 0.000 -1.642
Polar
3z2-r2-3.284
x2-y2-0.453
xy0.692
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.045 0.352 0.000
y 0.352 4.847 0.000
z 0.000 0.000 5.091


<r2> (average value of r2) Å2
<r2> 85.832
(<r2>)1/2 9.265