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

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-337.529590
Energy at 298.15K 
HF Energy-337.250913
Nuclear repulsion energy261.748311
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/STO-3G
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 3460 3017 8.31      
2 A 3275 2855 54.06      
3 A 1678 1463 1.60      
4 A 1464 1276 0.00      
5 A 1332 1161 0.00      
6 A 1298 1132 7.85      
7 A 1215 1060 0.00      
8 A 1007 878 24.52      
9 A 736 642 9.25      
10 A 477 416 13.66      
11 E 3457 3014 0.62      
11 E 3457 3014 0.62      
12 E 3275 2856 13.33      
12 E 3275 2856 13.33      
13 E 1673 1459 3.86      
13 E 1673 1459 3.86      
14 E 1559 1359 42.01      
14 E 1559 1359 42.01      
15 E 1416 1235 1.72      
15 E 1416 1235 1.72      
16 E 1247 1087 59.32      
16 E 1247 1087 59.32      
17 E 1131 986 1.84      
17 E 1131 986 1.84      
18 E 1021 890 2.40      
18 E 1021 890 2.40      
19 E 534 466 5.67      
19 E 534 466 5.67      
20 E 304 265 0.68      
20 E 304 265 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 23588.1 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 20566.5 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 MP2/STO-3G
ABC
0.16439 0.16439 0.09206

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.673 1.166 0.203
C2 -0.673 -1.166 0.203
C3 1.346 0.000 0.203
O4 -1.407 0.000 -0.295
O5 0.703 1.218 -0.295
O6 0.703 -1.218 -0.295
H7 -1.196 2.071 -0.185
H8 -0.683 1.183 1.329
H9 -1.196 -2.071 -0.185
H10 -0.683 -1.183 1.329
H11 2.392 0.000 -0.185
H12 1.366 0.000 1.329

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.33162.33161.46491.46492.79761.11511.12593.30172.60473.30172.6047
C22.33162.33161.46492.79761.46493.30172.60471.11511.12593.30172.6047
C32.33162.33162.79761.46491.46493.30172.60473.30172.60471.11511.1259
O41.46491.46492.79762.43632.43632.08482.13582.08482.13583.79983.2135
O51.46492.79761.46492.43632.43632.08482.13583.79983.21352.08482.1358
O62.79761.46491.46492.43632.43633.79983.21352.08482.13582.08482.1358
H71.11513.30173.30172.08482.08483.79981.82824.14233.62544.14233.6254
H81.12592.60472.60472.13582.13583.21351.82823.62542.36623.62542.3662
H93.30171.11513.30172.08483.79982.08484.14233.62541.82824.14233.6254
H102.60471.12592.60472.13583.21352.13583.62542.36621.82823.62542.3662
H113.30173.30171.11513.79982.08482.08484.14233.62544.14233.62541.8282
H122.60472.60471.12593.21352.13582.13583.62542.36623.62542.36621.8282

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 105.470 C1 O5 C3 105.470
C2 O6 C3 105.470 O4 C1 O5 112.525
O4 C1 H7 107.041 O4 C1 H8 110.373
O4 C2 O6 112.525 O4 C2 H9 107.041
O4 C2 H10 110.373 O5 C1 H7 107.041
O5 C1 H8 110.373 O5 C3 O6 112.525
O5 C3 H11 107.041 O5 C3 H12 110.373
O6 C2 H9 107.041 O6 C2 H10 110.373
O6 C3 H11 107.041 O6 C3 H12 110.373
H7 C1 H8 109.337 H9 C2 H10 109.337
H11 C3 H12 109.337
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability