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: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-304.003656
Energy at 298.15K-304.010245
HF Energy-304.003656
Nuclear repulsion energy194.650801
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 B1B95/cc-pVDZ
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' 3169 3046 23.77      
2 A' 3079 2959 47.06      
3 A' 1492 1435 0.13      
4 A' 1336 1284 0.20      
5 A' 1240 1191 1.82      
6 A' 1038 998 38.46      
7 A' 967 929 11.61      
8 A' 944 907 1.12      
9 A' 859 826 0.37      
10 A' 724 696 1.75      
11 A' 416 400 4.35      
12 A" 3153 3030 0.63      
13 A" 3067 2948 26.81      
14 A" 1475 1417 0.42      
15 A" 1334 1283 1.23      
16 A" 1216 1169 0.01      
17 A" 1149 1105 0.02      
18 A" 1057 1016 1.47      
19 A" 766 736 41.31      
20 A" 731 703 3.61      
21 A" 122 117 4.31      

Unscaled Zero Point Vibrational Energy (zpe) 14665.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 14096.5 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 B1B95/cc-pVDZ
ABC
0.27846 0.25696 0.15006

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.558 -1.037 0.000
O2 0.138 -0.488 1.094
O3 0.138 -0.488 -1.094
C4 0.138 0.890 0.773
C5 0.138 0.890 -0.773
H6 1.048 1.314 1.210
H7 1.048 1.314 -1.210
H8 -0.751 1.400 1.172
H9 -0.751 1.400 -1.172

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.40751.40752.18902.18903.09353.09352.71042.7104
O21.40752.18721.41452.31982.02223.06342.08793.0801
O31.40752.18722.31981.41453.06342.02223.08012.0879
C42.18901.41452.31981.54561.09542.22291.09992.1984
C52.18902.31981.41451.54562.22291.09542.19841.0999
H63.09352.02223.06341.09542.22292.42091.80152.9867
H73.09353.06342.02222.22291.09542.42092.98671.8015
H82.71042.08793.08011.09992.19841.80152.98672.3443
H92.71043.08012.08792.19841.09992.98671.80152.3443

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 101.732 O1 O3 C5 101.732
O2 O1 O3 101.968 O2 C4 C5 103.110
O2 C4 H6 106.661 O2 C4 H8 111.663
O3 C5 C4 103.110 O3 C5 H7 106.661
O3 C5 H9 111.663 C4 C5 H7 113.550
C4 C5 H9 111.291 C5 C4 H6 113.550
C5 C4 H8 111.291 H6 C4 H8 110.292
H7 C5 H9 110.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.062      
2 O -0.185      
3 O -0.185      
4 C 0.120      
5 C 0.120      
6 H 0.054      
7 H 0.054      
8 H 0.042      
9 H 0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.333 3.310 0.000 3.327
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.785 0.650 0.000
y 0.650 -27.504 0.000
z 0.000 0.000 -29.332
Traceless
 xyz
x 0.633 0.650 0.000
y 0.650 1.054 0.000
z 0.000 0.000 -1.688
Polar
3z2-r2-3.375
x2-y2-0.281
xy0.650
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.006 0.360 0.000
y 0.360 4.819 0.000
z 0.000 0.000 5.148


<r2> (average value of r2) Å2
<r2> 85.558
(<r2>)1/2 9.250