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: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-304.060476
Energy at 298.15K-304.066751
HF Energy-304.060476
Nuclear repulsion energy190.083849
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 BLYP/6-31G(2df,p)
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' 3037 3021 33.15      
2 A' 2959 2942 57.30      
3 A' 1469 1461 0.42      
4 A' 1291 1284 0.17      
5 A' 1194 1188 1.12      
6 A' 922 917 28.45      
7 A' 894 889 5.06      
8 A' 842 837 0.35      
9 A' 830 826 0.79      
10 A' 663 660 1.29      
11 A' 393 391 3.57      
12 A" 3020 3003 1.16      
13 A" 2947 2931 29.67      
14 A" 1456 1448 0.01      
15 A" 1304 1297 1.33      
16 A" 1177 1170 0.00      
17 A" 1117 1111 0.01      
18 A" 963 958 1.41      
19 A" 712 708 16.36      
20 A" 537 534 39.48      
21 A" 110 110 5.53      

Unscaled Zero Point Vibrational Energy (zpe) 13918.2 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 13841.7 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 BLYP/6-31G(2df,p)
ABC
0.26730 0.24329 0.14275

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.549 -1.074 0.000
O2 0.136 -0.489 1.122
O3 0.136 -0.489 -1.122
C4 0.136 0.907 0.787
C5 0.136 0.907 -0.787
H6 1.043 1.341 1.228
H7 1.043 1.341 -1.228
H8 -0.756 1.423 1.179
H9 -0.756 1.423 -1.179

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.43871.43872.23852.23853.14193.14192.76912.7691
O21.43872.24431.43582.36482.04493.11372.11103.1222
O31.43872.24432.36481.43583.11372.04493.12222.1110
C42.23851.43582.36481.57321.09812.25181.10302.2195
C52.23852.36481.43581.57322.25181.09812.21951.1030
H63.14192.04493.11371.09812.25182.45661.80183.0065
H73.14193.11372.04492.25181.09812.45663.00651.8018
H82.76912.11103.12221.10302.21951.80183.00652.3580
H92.76913.12222.11102.21951.10303.00651.80182.3580

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 102.289 O1 O3 C5 102.289
O2 O1 O3 102.511 O2 C4 C5 103.515
O2 C4 H6 106.855 O2 C4 H8 111.838
O3 C5 C4 103.515 O3 C5 H7 106.855
O3 C5 H9 111.838 C4 C5 H7 113.719
C4 C5 H9 110.841 C5 C4 H6 113.719
C5 C4 H8 110.841 H6 C4 H8 109.888
H7 C5 H9 109.888
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.107      
2 O -0.108      
3 O -0.108      
4 C -0.058      
5 C -0.058      
6 H 0.117      
7 H 0.117      
8 H 0.103      
9 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.330 3.066 0.000 3.084
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.817 0.666 0.000
y 0.666 -27.589 0.000
z 0.000 0.000 -29.160
Traceless
 xyz
x 0.557 0.666 0.000
y 0.666 0.899 0.000
z 0.000 0.000 -1.457
Polar
3z2-r2-2.913
x2-y2-0.228
xy0.666
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.434 0.390 0.000
y 0.390 5.433 0.000
z 0.000 0.000 5.674


<r2> (average value of r2) Å2
<r2> 88.732
(<r2>)1/2 9.420