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

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A1
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-342.986305
Energy at 298.15K 
HF Energy-341.782188
Nuclear repulsion energy271.826382
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 MP2/6-311+G(3df,2p)
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 3205 3024 4.31      
2 A1 3006 2836 148.20      
3 A1 1545 1458 5.59      
4 A1 1256 1185 20.01      
5 A1 1003 947 72.05      
6 A1 763 720 0.56      
7 A1 486 459 18.69      
8 A2 1417 1337 0.00      
9 A2 1269 1197 0.00      
10 A2 1000 943 0.00      
11 E 3203 3022 20.06      
11 E 3203 3022 20.06      
12 E 2995 2825 19.91      
12 E 2995 2825 19.91      
13 E 1527 1441 1.25      
13 E 1527 1441 1.25      
14 E 1452 1369 17.77      
14 E 1452 1369 17.77      
15 E 1348 1272 2.04      
15 E 1348 1272 2.04      
16 E 1215 1146 227.89      
16 E 1215 1146 227.89      
17 E 1100 1038 51.54      
17 E 1100 1038 51.54      
18 E 974 919 54.96      
18 E 974 919 54.96      
19 E 531 501 8.77      
19 E 531 501 8.77      
20 E 308 290 0.05      
20 E 308 290 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 22127.5 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 20875.1 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 MP2/6-311+G(3df,2p)
ABC
0.17758 0.17758 0.09892

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.319 0.183
C2 -1.143 -0.660 0.183
C3 1.143 -0.660 0.183
O4 -1.159 0.669 -0.269
O5 1.159 0.669 -0.269
O6 0.000 -1.339 -0.269
H7 0.000 2.322 -0.228
H8 0.000 1.340 1.284
H9 -2.011 -1.161 -0.228
H10 -1.160 -0.670 1.284
H11 2.011 -1.161 -0.228
H12 1.160 -0.670 1.284

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.28532.28531.40421.40422.69651.08411.10053.21992.55233.21992.5523
C22.28532.28531.40422.69651.40423.21992.55231.08411.10053.21992.5523
C32.28532.28532.69651.40421.40423.21992.55233.21992.55231.08411.1005
O41.40421.40422.69652.31892.31892.01942.05072.01942.05073.66143.0962
O51.40422.69651.40422.31892.31892.01942.05073.66143.09622.01942.0507
O62.69651.40421.40422.31892.31893.66143.09622.01942.05072.01942.0507
H71.08413.21993.21992.01942.01943.66141.80324.02243.54774.02243.5477
H81.10052.55232.55232.05072.05073.09621.80323.54772.32063.54772.3206
H93.21991.08413.21992.01943.66142.01944.02243.54771.80324.02243.5477
H102.55231.10052.55232.05073.09622.05073.54772.32061.80323.54772.3206
H113.21993.21991.08413.66142.01942.01944.02243.54774.02243.54771.8032
H122.55232.55231.10053.09622.05072.05073.54772.32063.54772.32061.8032

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 108.927 C1 O5 C3 108.927
C2 O6 C3 108.927 O4 C1 O5 111.320
O4 C1 H7 107.805 O4 C1 H8 109.322
O4 C2 O6 111.320 O4 C2 H9 107.805
O4 C2 H10 109.322 O5 C1 H7 107.805
O5 C1 H8 109.322 O5 C3 O6 111.320
O5 C3 H11 107.805 O5 C3 H12 109.322
O6 C2 H9 107.805 O6 C2 H10 109.322
O6 C3 H11 107.805 O6 C3 H12 109.322
H7 C1 H8 111.263 H9 C2 H10 111.263
H11 C3 H12 111.263
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability