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All results from a given calculation for C2H4O2 (1,3-dioxetane)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-228.977404
Energy at 298.15K-228.983111
Nuclear repulsion energy131.607091
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 B1B95/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3022 2901 0.00      
2 Ag 1586 1523 0.00      
3 Ag 1152 1106 0.00      
4 Ag 897 861 0.00      
5 Au 1137 1092 0.00      
6 B1g 1348 1295 0.00      
7 B1g 1045 1003 0.00      
8 B1u 3060 2938 162.44      
9 B1u 1180 1133 20.10      
10 B1u 154 148 14.25      
11 B2g 3056 2934 0.00      
12 B2g 1122 1077 0.00      
13 B2u 1455 1397 22.18      
14 B2u 990 951 109.68      
15 B3g 1076 1033 0.00      
16 B3u 3004 2884 232.72      
17 B3u 1549 1487 15.31      
18 B3u 1118 1074 259.70      

Unscaled Zero Point Vibrational Energy (zpe) 13976.2 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 13418.5 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 B1B95/6-311G**
ABC
0.46567 0.45358 0.25231

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.972 0.000 0.000
C2 0.972 0.000 0.000
O3 0.000 1.029 0.000
O4 0.000 -1.029 0.000
H5 -1.595 0.000 0.902
H6 1.595 0.000 0.902
H7 -1.595 0.000 -0.902
H8 1.595 0.000 -0.902

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.94381.41561.41561.09592.72061.09592.7206
C21.94381.41561.41562.72061.09592.72061.0959
O31.41561.41562.05852.10142.10142.10142.1014
O41.41561.41562.05852.10142.10142.10142.1014
H51.09592.72062.10142.10143.18991.80303.6642
H62.72061.09592.10142.10143.18993.66421.8030
H71.09592.72062.10142.10141.80303.66423.1899
H82.72061.09592.10142.10143.66421.80303.1899

picture of 1,3-dioxetane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O3 C2 86.716 C1 O4 C2 86.716
O3 C1 O4 93.284 O3 C1 H5 112.976
O3 C1 H7 112.976 O3 C2 O4 93.284
O3 C2 H6 112.976 O3 C2 H8 112.976
O4 C1 H5 112.976 O4 C1 H7 112.976
O4 C2 H6 112.976 O4 C2 H8 112.976
H5 C1 H7 110.701 H6 C2 H8 110.701
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.127      
2 C 0.127      
3 O -0.352      
4 O -0.352      
5 H 0.113      
6 H 0.113      
7 H 0.113      
8 H 0.113      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.689 0.000 0.000
y 0.000 -28.471 0.000
z 0.000 0.000 -22.564
Traceless
 xyz
x 6.829 0.000 0.000
y 0.000 -7.845 0.000
z 0.000 0.000 1.016
Polar
3z2-r22.032
x2-y29.782
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.136 0.000 0.000
y 0.000 3.127 0.000
z 0.000 0.000 3.688


<r2> (average value of r2) Å2
<r2> 56.228
(<r2>)1/2 7.499