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

using model chemistry: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A1
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-340.306676
Energy at 298.15K 
HF Energy-339.757878
Nuclear repulsion energy265.004633
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 CID/3-21G
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 3278 3054 13.77      
2 A1 3090 2879 162.18      
3 A1 1645 1532 7.42      
4 A1 1273 1186 12.35      
5 A1 996 928 90.74      
6 A1 747 696 1.30      
7 A1 434 404 30.50      
8 A2 1462 1362 0.00      
9 A2 1299 1210 0.00      
10 A2 1038 967 0.00      
11 E 3270 3046 24.74      
11 E 3270 3046 24.74      
12 E 3073 2863 21.34      
12 E 3073 2863 21.34      
13 E 1623 1512 0.28      
13 E 1623 1512 0.28      
14 E 1519 1415 27.77      
14 E 1519 1415 27.77      
15 E 1377 1283 0.01      
15 E 1377 1283 0.01      
16 E 1208 1125 187.06      
16 E 1208 1125 187.06      
17 E 1104 1029 74.51      
17 E 1104 1029 74.51      
18 E 949 884 14.82      
18 E 949 884 14.82      
19 E 526 490 15.74      
19 E 526 490 15.74      
20 E 281 262 0.22      
20 E 281 262 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 22561.5 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 21018.3 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 CID/3-21G
ABC
0.16832 0.16832 0.09301

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.367 0.182
C2 -1.184 -0.684 0.182
C3 1.184 -0.684 0.182
O4 -1.193 0.689 -0.262
O5 1.193 0.689 -0.262
O6 0.000 -1.378 -0.262
H7 0.000 2.350 -0.270
H8 0.000 1.430 1.276
H9 -2.035 -1.175 -0.270
H10 -1.239 -0.715 1.276
H11 2.035 -1.175 -0.270
H12 1.239 -0.715 1.276

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.36822.36821.44241.44242.78051.08121.09663.28752.65883.28752.6588
C22.36822.36821.44242.78051.44243.28752.65881.08121.09663.28752.6588
C32.36822.36822.78051.44241.44243.28752.65883.28752.65881.08121.0966
O41.44241.44242.78052.38602.38602.04512.08332.04512.08333.72743.2017
O51.44242.78051.44242.38602.38602.04512.08333.72743.20172.04512.0833
O62.78051.44241.44242.38602.38603.72743.20172.04512.08332.04512.0833
H71.08123.28753.28752.04512.04513.72741.79894.07003.64954.07003.6495
H81.09662.65882.65882.08332.08333.20171.79893.64952.47723.64952.4772
H93.28751.08123.28752.04513.72742.04514.07003.64951.79894.07003.6495
H102.65881.09662.65882.08333.20172.08333.64952.47721.79893.64952.4772
H113.28753.28751.08123.72742.04512.04514.07003.64954.07003.64951.7989
H122.65882.65881.09663.20172.08332.08333.64952.47723.64952.47721.7989

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 110.352 C1 O5 C3 110.352
C2 O6 C3 110.352 O4 C1 O5 111.598
O4 C1 H7 107.398 O4 C1 H8 109.524
O4 C2 O6 111.598 O4 C2 H9 107.398
O4 C2 H10 109.524 O5 C1 H7 107.398
O5 C1 H8 109.524 O5 C3 O6 111.598
O5 C3 H11 107.398 O5 C3 H12 109.524
O6 C2 H9 107.398 O6 C2 H10 109.524
O6 C3 H11 107.398 O6 C3 H12 109.524
H7 C1 H8 111.382 H9 C2 H10 111.383
H11 C3 H12 111.383
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability