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

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.195125
HF Energy-0.195125
Nuclear repulsion energy180.538101
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 PM3
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 3022 2944 1.34      
2 A1 2886 2811 16.34      
3 A1 1340 1305 4.36      
4 A1 1106 1077 52.38      
5 A1 1055 1027 9.69      
6 A1 649 632 6.55      
7 A1 372 362 35.03      
8 A2 1238 1206 0.00      
9 A2 1079 1051 0.00      
10 A2 957 932 0.00      
11 E 3018 2939 8.34      
11 E 3018 2939 8.34      
12 E 2888 2813 0.71      
12 E 2888 2813 0.71      
13 E 1360 1325 101.81      
13 E 1360 1325 101.81      
14 E 1329 1294 45.96      
14 E 1329 1294 45.96      
15 E 1144 1114 10.55      
15 E 1144 1114 10.55      
16 E 1073 1045 4.49      
16 E 1073 1045 4.48      
17 E 937 913 1.30      
17 E 937 913 1.30      
18 E 929 905 10.97      
18 E 929 905 10.97      
19 E 499 486 5.82      
19 E 499 486 5.82      
20 E 232 226 3.32      
20 E 232 226 3.32      

Unscaled Zero Point Vibrational Energy (zpe) 20258.9 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 19732.1 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 PM3
ABC
0.17583 0.17583 0.09798

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.357 0.190
C2 -1.175 -0.679 0.190
C3 1.175 -0.679 0.190
O4 -1.137 0.656 -0.260
O5 1.137 0.656 -0.260
O6 0.000 -1.313 -0.260
H7 0.000 2.314 -0.348
H8 0.000 1.502 1.288
H9 -2.004 -1.157 -0.348
H10 -1.301 -0.751 1.288
H11 2.004 -1.157 -0.348
H12 1.301 -0.751 1.288

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.35102.35101.40961.40962.70801.09731.10733.25962.70943.25962.7094
C22.35102.35101.40962.70801.40963.25962.70941.09731.10733.25962.7094
C32.35102.35102.70801.40961.40963.25962.70943.25962.70941.09731.1073
O41.40961.40962.70802.27412.27412.01162.09872.01162.09873.62763.2124
O51.40962.70801.40962.27412.27412.01162.09873.62763.21242.01162.0987
O62.70801.40961.40962.27412.27413.62763.21242.01162.09872.01162.0987
H71.09733.25963.25962.01162.01163.62761.82664.00713.70934.00713.7093
H81.10732.70942.70942.09872.09873.21241.82663.70932.60103.70932.6010
H93.25961.09733.25962.01163.62762.01164.00713.70931.82664.00713.7093
H102.70941.10732.70942.09873.21242.09873.70932.60101.82663.70932.6010
H113.25963.25961.09733.62762.01162.01164.00713.70934.00713.70931.8266
H122.70942.70941.10733.21242.09872.09873.70932.60103.70932.60101.8266

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 113.002 C1 O5 C3 113.002
C2 O6 C3 113.002 O4 C1 O5 107.538
O4 C1 H7 106.046 O4 C1 H8 112.439
O4 C2 O6 107.538 O4 C2 H9 106.046
O4 C2 H10 112.439 O5 C1 H7 106.046
O5 C1 H8 112.439 O5 C3 O6 107.538
O5 C3 H11 106.046 O5 C3 H12 112.439
O6 C2 H9 106.046 O6 C2 H10 112.439
O6 C3 H11 106.046 O6 C3 H12 112.439
H7 C1 H8 111.892 H9 C2 H10 111.891
H11 C3 H12 111.891
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability