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

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-342.606523
Energy at 298.15K 
HF Energy-341.651492
Nuclear repulsion energy270.085671
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 QCISD/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 3195 3042 12.40      
2 A1 3003 2860 163.65      
3 A1 1578 1503 4.11      
4 A1 1278 1217 22.91      
5 A1 1011 963 81.31      
6 A1 772 735 0.88      
7 A1 480 457 22.44      
8 A2 1421 1353 0.00      
9 A2 1273 1213 0.00      
10 A2 1045 995 0.00      
11 E 3191 3039 33.16      
11 E 3191 3039 33.16      
12 E 2985 2843 19.64      
12 E 2985 2843 19.64      
13 E 1557 1483 0.13      
13 E 1557 1483 0.13      
14 E 1478 1407 39.44      
14 E 1478 1407 39.44      
15 E 1358 1293 1.81      
15 E 1358 1293 1.81      
16 E 1231 1172 239.06      
16 E 1231 1172 239.06      
17 E 1113 1060 45.85      
17 E 1113 1060 45.85      
18 E 991 944 33.37      
18 E 991 944 33.37      
19 E 534 509 10.23      
19 E 534 509 10.23      
20 E 304 290 0.17      
20 E 304 290 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 22269.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 21207.3 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 QCISD/6-31G*
ABC
0.17531 0.17531 0.09754

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.330 0.183
C2 -1.151 -0.665 0.183
C3 1.151 -0.665 0.183
O4 -1.166 0.673 -0.268
O5 1.166 0.673 -0.268
O6 0.000 -1.347 -0.268
H7 0.000 2.333 -0.244
H8 0.000 1.372 1.289
H9 -2.021 -1.167 -0.244
H10 -1.188 -0.686 1.289
H11 2.021 -1.167 -0.244
H12 1.188 -0.686 1.289

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.30282.30281.41221.41222.71411.09061.10673.23962.58773.23962.5877
C22.30282.30281.41222.71411.41223.23962.58771.09061.10673.23962.5877
C32.30282.30282.71411.41221.41223.23962.58773.23962.58771.09061.1067
O41.41221.41222.71412.33282.33282.02872.06702.02872.06703.68013.1329
O51.41222.71411.41222.33282.33282.02872.06703.68013.13292.02872.0670
O62.71411.41221.41222.33282.33283.68013.13292.02872.06702.02872.0670
H71.09063.23963.23962.02872.02873.68011.80934.04113.58824.04113.5882
H81.10672.58772.58772.06702.06703.13291.80933.58822.37603.58822.3760
H93.23961.09063.23962.02873.68012.02874.04113.58821.80934.04113.5882
H102.58771.10672.58772.06703.13292.06703.58822.37601.80933.58822.3760
H113.23963.23961.09063.68012.02872.02874.04113.58824.04113.58821.8093
H122.58772.58771.10673.13292.06702.06703.58822.37603.58822.37601.8093

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 109.233 C1 O5 C3 109.233
C2 O6 C3 109.233 O4 C1 O5 111.364
O4 C1 H7 107.609 O4 C1 H8 109.690
O4 C2 O6 111.364 O4 C2 H9 107.609
O4 C2 H10 109.691 O5 C1 H7 107.609
O5 C1 H8 109.690 O5 C3 O6 111.364
O5 C3 H11 107.609 O5 C3 H12 109.691
O6 C2 H9 107.609 O6 C2 H10 109.690
O6 C3 H11 107.609 O6 C3 H12 109.690
H7 C1 H8 110.848 H9 C2 H10 110.848
H11 C3 H12 110.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability