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 (trioxolane124)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-302.570809
Energy at 298.15K-302.577802
HF Energy-302.570809
Nuclear repulsion energy199.466539
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 HF/aug-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 3300 3005 1.48      
2 A 3217 2930 1.69      
3 A 1659 1511 0.06      
4 A 1558 1418 20.63      
5 A 1334 1215 4.46      
6 A 1265 1152 21.97      
7 A 1222 1113 41.45      
8 A 1086 989 20.08      
9 A 1033 941 67.67      
10 A 835 761 0.00      
11 A 383 348 6.32      
12 B 3301 3006 56.35      
13 B 3214 2926 158.14      
14 B 1646 1499 4.76      
15 B 1488 1355 8.04      
16 B 1332 1213 5.13      
17 B 1253 1141 52.21      
18 B 1230 1120 204.71      
19 B 1087 990 4.21      
20 B 797 726 3.54      
21 B 183 167 20.81      

Unscaled Zero Point Vibrational Energy (zpe) 16211.5 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 14762.2 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 HF/aug-cc-pVDZ
ABC
0.28563 0.27994 0.15717

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.163
C2 0.000 1.116 0.321
C3 0.000 -1.116 0.321
O4 -0.338 -0.608 -0.936
O5 0.338 0.608 -0.936
H6 -0.989 1.571 0.301
H7 0.989 -1.571 0.301
H8 0.769 1.825 0.611
H9 -0.769 -1.825 0.611

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7 H8 H9
O11.39811.39812.21122.21122.04722.04722.05572.0557
C21.39812.23232.16011.39751.08912.86391.08533.0538
C31.39812.23231.39752.16012.86391.08913.05381.0853
O42.21122.16011.39751.39062.58902.05433.08832.0155
O52.21121.39752.16011.39062.05432.58902.01553.0883
H62.04721.08912.86392.58902.05433.71371.80313.4177
H72.04722.86391.08912.05432.58903.71373.41771.8031
H82.05571.08533.05383.08832.01551.80313.41773.9607
H92.05573.05381.08532.01553.08833.41771.80313.9607

picture of trioxolane124 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 73.343 O1 C2 H6 110.170
O1 C2 H8 111.114 O1 C3 O5 73.343
O1 C3 H7 110.170 O1 C3 H9 111.114
C2 O1 C3 105.942 C2 O4 O5 39.333
C3 O5 O4 39.333 O4 C2 H6 100.422
O4 C2 H8 141.975 O5 C3 H7 100.422
O5 C3 H9 141.975 H6 C2 H8 112.041
H7 C3 H9 112.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.870      
2 C 1.372      
3 C 1.372      
4 O -0.545      
5 O -0.545      
6 H -0.181      
7 H -0.181      
8 H -0.211      
9 H -0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.225 1.225
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.369 -0.093 0.000
y -0.093 -23.171 0.000
z 0.000 0.000 -34.268
Traceless
 xyz
x 0.351 -0.093 0.000
y -0.093 8.147 0.000
z 0.000 0.000 -8.498
Polar
3z2-r2-16.996
x2-y2-5.198
xy-0.093
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.420 0.237 0.000
y 0.237 6.067 0.000
z 0.000 0.000 4.570


<r2> (average value of r2) Å2
<r2> 82.294
(<r2>)1/2 9.072