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All results from a given calculation for C3H6O3 (1,3,5-Trioxane)

using model chemistry: QCISD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A1
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-342.838712
Energy at 298.15K 
HF Energy-341.774348
Nuclear repulsion energy271.144498
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 QCISD/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3203 3060 7.23      
2 A1 3007 2873 169.70      
3 A1 1564 1494 3.31      
4 A1 1286 1228 23.79      
5 A1 1014 969 78.79      
6 A1 782 747 0.70      
7 A1 492 470 18.30      
8 A2 1450 1385 0.00      
9 A2 1294 1236 0.00      
10 A2 1033 987 0.00      
11 E 3200 3057 29.85      
11 E 3200 3057 29.85      
12 E 2992 2858 19.54      
12 E 2992 2858 19.54      
13 E 1547 1477 1.56      
13 E 1547 1477 1.56      
14 E 1505 1438 36.51      
14 E 1505 1438 36.51      
15 E 1376 1314 1.74      
15 E 1376 1314 1.74      
16 E 1232 1177 219.91      
16 E 1232 1177 219.90      
17 E 1114 1065 63.49      
17 E 1114 1065 63.49      
18 E 986 942 41.17      
18 E 986 942 41.17      
19 E 542 518 7.58      
19 E 542 518 7.59      
20 E 318 304 0.26      
20 E 318 304 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 22373.8 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 21373.7 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 QCISD/TZVP
ABC
0.17668 0.17668 0.09836

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.324 0.183
C2 -1.147 -0.662 0.183
C3 1.147 -0.662 0.183
O4 -1.162 0.671 -0.269
O5 1.162 0.671 -0.269
O6 0.000 -1.341 -0.269
H7 0.000 2.326 -0.235
H8 0.000 1.358 1.285
H9 -2.014 -1.163 -0.235
H10 -1.176 -0.679 1.285
H11 2.014 -1.163 -0.235
H12 1.176 -0.679 1.285

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.29392.29391.40731.40732.70361.08541.10203.22792.57083.22792.5708
C22.29392.29391.40732.70361.40733.22792.57081.08541.10203.22792.5708
C32.29392.29392.70361.40731.40733.22792.57083.22792.57081.08541.1020
O41.40731.40732.70362.32312.32312.02242.05762.02242.05763.66733.1140
O51.40732.70361.40732.32312.32312.02242.05763.66733.11402.02242.0576
O62.70361.40731.40732.32312.32313.66733.11402.02242.05762.02242.0576
H71.08543.22793.22792.02242.02243.66731.80204.02863.56674.02863.5667
H81.10202.57082.57082.05762.05763.11401.80203.56672.35183.56672.3518
H93.22791.08543.22792.02243.66732.02244.02863.56671.80204.02863.5667
H102.57081.10202.57082.05763.11402.05763.56672.35181.80203.56672.3518
H113.22793.22791.08543.66732.02242.02244.02863.56674.02863.56671.8020
H122.57082.57081.10203.11402.05762.05763.56672.35183.56672.35181.8020

picture of 1,3,5-Trioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C2 109.171 C1 O5 C3 109.171
C2 O6 C3 109.171 O4 C1 O5 111.249
O4 C1 H7 107.755 O4 C1 H8 109.564
O4 C2 O6 111.249 O4 C2 H9 107.755
O4 C2 H10 109.564 O5 C1 H7 107.755
O5 C1 H8 109.564 O5 C3 O6 111.249
O5 C3 H11 107.755 O5 C3 H12 109.564
O6 C2 H9 107.754 O6 C2 H10 109.564
O6 C3 H11 107.754 O6 C3 H12 109.564
H7 C1 H8 110.935 H9 C2 H10 110.935
H11 C3 H12 110.935
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability