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All results from a given calculation for C2H4O3 (1,2,3-trioxolane)

using model chemistry: CISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/3-21G
 hartrees
Energy at 0K-301.277466
Energy at 298.15K-301.283859
HF Energy-300.777300
Nuclear repulsion energy187.693259
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 CISD/3-21G
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' 3254 3063 25.84      
2 A' 3186 2999 18.00      
3 A' 1627 1531 0.22      
4 A' 1392 1311 0.13      
5 A' 1271 1197 1.18      
6 A' 1022 962 12.09      
7 A' 958 901 2.65      
8 A' 928 874 12.52      
9 A' 904 851 0.50      
10 A' 674 634 1.62      
11 A' 351 330 5.39      
12 A" 3232 3042 0.06      
13 A" 3174 2987 22.13      
14 A" 1609 1514 0.25      
15 A" 1412 1329 15.71      
16 A" 1309 1232 0.69      
17 A" 1168 1100 0.00      
18 A" 1031 971 15.53      
19 A" 908 855 4.26      
20 A" 725 683 7.96      
21 A" 32 30 3.13      

Unscaled Zero Point Vibrational Energy (zpe) 15082.7 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 14197.3 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 CISD/3-21G
ABC
0.25669 0.24030 0.13910

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.559 -1.112 0.000
O2 0.139 -0.488 1.141
O3 0.139 -0.488 -1.141
C4 0.139 0.927 0.787
C5 0.139 0.927 -0.787
H6 1.036 1.363 1.215
H7 1.036 1.363 -1.215
H8 -0.746 1.429 1.173
H9 -0.746 1.429 -1.173

Atom - Atom Distances (Å)
  O1 O2 O3 C4 C5 H6 H7 H8 H9
O11.47571.47572.29462.29463.18593.18592.80562.8056
O21.47572.28121.45912.39112.05903.12772.11253.1329
O31.47572.28122.39111.45913.12772.05903.13292.1125
C42.29461.45912.39111.57311.08582.23631.08872.2083
C52.29462.39111.45911.57312.23631.08582.20831.0887
H63.18592.05903.12771.08582.23632.42971.78422.9807
H73.18593.12772.05902.23631.08582.42972.98071.7842
H82.80562.11253.13291.08872.20831.78422.98072.3464
H92.80563.13292.11252.20831.08872.98071.78422.3464

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 102.857 O1 O3 C5 102.857
O2 O1 O3 101.232 O2 C4 C5 104.043
O2 C4 H6 107.099 O2 C4 H8 111.190
O3 C5 C4 104.043 O3 C5 H7 107.099
O3 C5 H9 111.190 C4 C5 H7 113.232
C4 C5 H9 110.801 C5 C4 H6 113.232
C5 C4 H8 110.801 H6 C4 H8 110.269
H7 C5 H9 110.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability