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/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-303.907249
Energy at 298.15K-303.913868
HF Energy-303.907249
Nuclear repulsion energy194.797142
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/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' 3145 3022 23.78      
2 A' 3065 2946 53.00      
3 A' 1515 1456 0.21      
4 A' 1346 1293 0.03      
5 A' 1248 1199 1.80      
6 A' 1032 992 33.36      
7 A' 971 933 16.13      
8 A' 954 917 0.00      
9 A' 867 833 0.36      
10 A' 730 702 1.39      
11 A' 418 401 4.05      
12 A" 3127 3005 0.91      
13 A" 3054 2936 23.05      
14 A" 1500 1441 1.17      
15 A" 1353 1301 2.42      
16 A" 1231 1183 0.00      
17 A" 1161 1116 0.08      
18 A" 1052 1011 1.78      
19 A" 780 750 47.94      
20 A" 742 713 0.02      
21 A" 122 117 3.94      

Unscaled Zero Point Vibrational Energy (zpe) 14705.5 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 14133.4 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/cc-pVTZ
ABC
0.27833 0.25789 0.14974

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.545 -1.048 0.000
O2 0.135 -0.485 1.095
O3 0.135 -0.485 -1.095
C4 0.135 0.893 0.773
C5 0.135 0.893 -0.773
H6 1.037 1.321 1.207
H7 1.037 1.321 -1.207
H8 -0.751 1.397 1.167
H9 -0.751 1.397 -1.167

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.40621.40622.19632.19633.09323.09322.71642.7164
O21.40622.19011.41542.32102.02193.06192.08143.0732
O31.40622.19012.32101.41543.06192.02193.07322.0814
C42.19631.41542.32101.54511.08882.21711.09292.1912
C52.19632.32101.41541.54512.21711.08882.19121.0929
H63.09322.02193.06191.08882.21712.41411.78972.9730
H73.09323.06192.02192.21711.08882.41412.97301.7897
H82.71642.08143.07321.09292.19121.78972.97302.3344
H92.71643.07322.08142.19121.09292.97301.78972.3344

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 102.226 O1 O3 C5 102.226
O2 O1 O3 102.285 O2 C4 C5 103.171
O2 C4 H6 106.970 O2 C4 H8 111.515
O3 C5 C4 103.171 O3 C5 H7 106.970
O3 C5 H9 111.515 C4 C5 H7 113.521
C4 C5 H9 111.169 C5 C4 H6 113.521
C5 C4 H8 111.169 H6 C4 H8 110.241
H7 C5 H9 110.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.050      
2 O -0.145      
3 O -0.145      
4 C 0.013      
5 C 0.013      
6 H 0.086      
7 H 0.086      
8 H 0.071      
9 H 0.071      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.307 3.282 0.000 3.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.019 0.650 0.000
y 0.650 -27.737 0.000
z 0.000 0.000 -29.492
Traceless
 xyz
x 0.595 0.650 0.000
y 0.650 1.018 0.000
z 0.000 0.000 -1.613
Polar
3z2-r2-3.227
x2-y2-0.282
xy0.650
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.444 0.339 0.000
y 0.339 5.437 0.000
z 0.000 0.000 5.688


<r2> (average value of r2) Å2
<r2> 85.661
(<r2>)1/2 9.255