return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCSD=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A1
Energy calculated at CCSD=FULL/6-31G*
 hartrees
Energy at 0K-342.625751
Energy at 298.15K 
HF Energy-341.652122
Nuclear repulsion energy270.482586
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 CCSD=FULL/6-31G*
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 3199 3039 11.92      
2 A1 3008 2857 161.83      
3 A1 1582 1502 4.02      
4 A1 1282 1217 23.05      
5 A1 1017 966 82.37      
6 A1 777 738 0.91      
7 A1 481 457 22.71      
8 A2 1427 1355 0.00      
9 A2 1280 1215 0.00      
10 A2 1059 1006 0.00      
11 E 3195 3035 32.57      
11 E 3195 3035 32.57      
12 E 2991 2841 18.96      
12 E 2991 2841 18.96      
13 E 1561 1482 0.18      
13 E 1561 1482 0.18      
14 E 1483 1409 39.60      
14 E 1483 1409 39.60      
15 E 1364 1295 2.06      
15 E 1364 1295 2.06      
16 E 1238 1176 243.28      
16 E 1238 1176 243.28      
17 E 1118 1062 41.88      
17 E 1118 1062 41.88      
18 E 997 947 32.89      
18 E 997 947 32.89      
19 E 537 510 10.21      
19 E 537 510 10.21      
20 E 305 289 0.18      
20 E 305 289 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 22342.7 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 21221.1 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 CCSD=FULL/6-31G*
ABC
0.17584 0.17584 0.09782

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.328 0.182
C2 -1.150 -0.664 0.182
C3 1.150 -0.664 0.182
O4 -1.164 0.672 -0.267
O5 1.164 0.672 -0.267
O6 0.000 -1.345 -0.267
H7 0.000 2.331 -0.244
H8 0.000 1.371 1.287
H9 -2.019 -1.165 -0.244
H10 -1.187 -0.686 1.287
H11 2.019 -1.165 -0.244
H12 1.187 -0.686 1.287

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.29972.29971.40981.40982.70991.09011.10613.23622.58553.23622.5855
C22.29972.29971.40982.70991.40983.23622.58551.09011.10613.23622.5855
C32.29972.29972.70991.40981.40983.23622.58553.23622.58551.09011.1061
O41.40981.40982.70992.32902.32902.02672.06432.02672.06433.67563.1293
O51.40982.70991.40982.32902.32902.02672.06433.67563.12932.02672.0643
O62.70991.40981.40982.32902.32903.67563.12932.02672.06432.02672.0643
H71.09013.23623.23622.02672.02673.67561.80754.03733.58544.03733.5854
H81.10612.58552.58552.06432.06433.12931.80753.58542.37493.58542.3749
H93.23621.09013.23622.02673.67562.02674.03733.58541.80754.03733.5854
H102.58551.10612.58552.06433.12932.06433.58542.37491.80753.58542.3749
H113.23623.23621.09013.67562.02672.02674.03733.58544.03733.58541.8075
H122.58552.58551.10613.12932.06432.06433.58542.37493.58542.37491.8075

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 109.295 C1 O5 C3 109.295
C2 O6 C3 109.295 O4 C1 O5 111.381
O4 C1 H7 107.647 O4 C1 H8 109.679
O4 C2 O6 111.381 O4 C2 H9 107.647
O4 C2 H10 109.680 O5 C1 H7 107.647
O5 C1 H8 109.679 O5 C3 O6 111.381
O5 C3 H11 107.647 O5 C3 H12 109.680
O6 C2 H9 107.647 O6 C2 H10 109.679
O6 C3 H11 107.647 O6 C3 H12 109.679
H7 C1 H8 110.777 H9 C2 H10 110.777
H11 C3 H12 110.777
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability