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/STO-3G

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/STO-3G
 hartrees
Energy at 0K-299.878770
Energy at 298.15K-299.885277
HF Energy-299.878770
Nuclear repulsion energy189.303662
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/STO-3G
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' 3477 3071 2.15      
2 A' 3346 2955 3.67      
3 A' 1662 1468 0.10      
4 A' 1407 1242 0.43      
5 A' 1270 1122 2.75      
6 A' 1177 1039 1.84      
7 A' 1066 941 1.76      
8 A' 1031 910 1.18      
9 A' 904 798 0.23      
10 A' 724 640 1.28      
11 A' 402 355 3.35      
12 A" 3470 3064 1.07      
13 A" 3343 2952 1.77      
14 A" 1648 1455 0.02      
15 A" 1430 1263 5.08      
16 A" 1308 1155 0.03      
17 A" 1192 1052 0.56      
18 A" 1119 988 14.05      
19 A" 1032 911 6.21      
20 A" 750 663 2.26      
21 A" 161 143 2.12      

Unscaled Zero Point Vibrational Energy (zpe) 15958.5 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 14093.0 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/STO-3G
ABC
0.26010 0.24552 0.14178

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.557 -1.087 0.000
O2 0.138 -0.506 1.135
O3 0.138 -0.506 -1.135
C4 0.138 0.927 0.790
C5 0.138 0.927 -0.790
H6 1.052 1.376 1.223
H7 1.052 1.376 -1.223
H8 -0.756 1.459 1.181
H9 -0.756 1.459 -1.181

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.45221.45222.27262.27263.18623.18622.81412.8141
O21.45222.26961.47392.39962.09423.15202.15923.1661
O31.45222.26962.39961.47393.15202.09423.16612.1592
C42.27261.47392.39961.58001.10622.25541.11132.2289
C52.27262.39961.47391.58002.25541.10622.22891.1113
H63.18622.09423.15201.10622.25542.44511.80973.0087
H73.18623.15202.09422.25541.10622.44513.00871.8097
H82.81412.15923.16611.11132.22891.80973.00872.3626
H92.81413.16612.15922.22891.11133.00871.80972.3626

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 101.917 O1 O3 C5 101.917
O2 O1 O3 102.789 O2 C4 C5 103.529
O2 C4 H6 107.667 O2 C4 H8 112.520
O3 C5 C4 103.529 O3 C5 H7 107.667
O3 C5 H9 112.520 C4 C5 H7 113.020
C4 C5 H9 110.616 C5 C4 H6 113.020
C5 C4 H8 110.616 H6 C4 H8 109.397
H7 C5 H9 109.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.025      
2 O -0.099      
3 O -0.099      
4 C -0.075      
5 C -0.075      
6 H 0.098      
7 H 0.098      
8 H 0.089      
9 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.162 2.511 0.000 2.516
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.527 0.332 0.000
y 0.332 -25.459 0.000
z 0.000 0.000 -26.914
Traceless
 xyz
x 0.660 0.332 0.000
y 0.332 0.762 0.000
z 0.000 0.000 -1.421
Polar
3z2-r2-2.843
x2-y2-0.068
xy0.332
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.998 0.370 0.000
y 0.370 2.922 0.000
z 0.000 0.000 2.991


<r2> (average value of r2) Å2
<r2> 88.009
(<r2>)1/2 9.381