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: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-342.828665
Energy at 298.15K 
HF Energy-341.733039
Nuclear repulsion energy271.535979
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=FULL/6-311G*
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 3224 3053 9.42      
2 A1 3016 2856 183.11      
3 A1 1568 1485 5.27      
4 A1 1268 1201 24.03      
5 A1 1013 959 84.30      
6 A1 774 733 0.56      
7 A1 496 470 20.71      
8 A2 1433 1357 0.00      
9 A2 1288 1220 0.00      
10 A2 1021 967 0.00      
11 E 3222 3051 28.63      
11 E 3222 3051 28.63      
12 E 3000 2841 22.90      
12 E 3000 2841 22.90      
13 E 1547 1465 1.78      
13 E 1547 1465 1.78      
14 E 1484 1406 28.43      
14 E 1484 1406 28.43      
15 E 1369 1296 1.74      
15 E 1369 1296 1.74      
16 E 1226 1161 230.93      
16 E 1226 1161 230.93      
17 E 1111 1052 56.30      
17 E 1111 1052 56.30      
18 E 993 941 41.70      
18 E 993 941 41.70      
19 E 536 507 8.89      
19 E 536 507 8.89      
20 E 317 300 0.17      
20 E 317 300 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 22354.1 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 21171.5 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=FULL/6-311G*
ABC
0.17720 0.17720 0.09870

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.317 0.183
C2 -1.141 -0.659 0.183
C3 1.141 -0.659 0.183
O4 -1.163 0.672 -0.269
O5 1.163 0.672 -0.269
O6 0.000 -1.343 -0.269
H7 0.000 2.321 -0.234
H8 0.000 1.346 1.286
H9 -2.010 -1.160 -0.234
H10 -1.166 -0.673 1.286
H11 2.010 -1.160 -0.234
H12 1.166 -0.673 1.286

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.28162.28161.40511.40512.69861.08651.10363.21732.55703.21732.5570
C22.28162.28161.40512.69861.40513.21732.55701.08651.10363.21732.5570
C32.28162.28162.69861.40511.40513.21732.55703.21732.55701.08651.1036
O41.40511.40512.69862.32642.32642.01822.05602.01822.05603.66383.1068
O51.40512.69861.40512.32642.32642.01822.05603.66383.10682.01822.0560
O62.69861.40511.40512.32642.32643.66383.10682.01822.05602.01822.0560
H71.08653.21733.21732.01822.01823.66381.80574.01923.55434.01923.5543
H81.10362.55702.55702.05602.05603.10681.80573.55432.33193.55432.3319
H93.21731.08653.21732.01823.66382.01824.01923.55431.80574.01923.5543
H102.55701.10362.55702.05603.10682.05603.55432.33191.80573.55432.3319
H113.21733.21731.08653.66382.01822.01824.01923.55434.01923.55431.8057
H122.55702.55701.10363.10682.05602.05603.55432.33193.55432.33191.8057

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 108.566 C1 O5 C3 108.566
C2 O6 C3 108.566 O4 C1 O5 111.759
O4 C1 H7 107.508 O4 C1 H8 109.489
O4 C2 O6 111.759 O4 C2 H9 107.508
O4 C2 H10 109.489 O5 C1 H7 107.508
O5 C1 H8 109.489 O5 C3 O6 111.759
O5 C3 H11 107.508 O5 C3 H12 109.489
O6 C2 H9 107.508 O6 C2 H10 109.489
O6 C3 H11 107.508 O6 C3 H12 109.489
H7 C1 H8 111.071 H9 C2 H10 111.071
H11 C3 H12 111.071
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability