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

using model chemistry: TPSSh/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 TPSSh/3-21G
 hartrees
Energy at 0K-341.688363
Energy at 298.15K 
HF Energy-341.688363
Nuclear repulsion energy263.185862
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 TPSSh/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 3184 3085 12.31      
2 A1 2962 2869 192.87      
3 A1 1556 1507 12.62      
4 A1 1204 1166 5.32      
5 A1 930 901 74.27      
6 A1 688 666 1.29      
7 A1 440 426 21.65      
8 A2 1380 1337 0.00      
9 A2 1228 1190 0.00      
10 A2 853 827 0.00      
11 E 3178 3079 25.14      
11 E 3178 3079 25.13      
12 E 2945 2853 24.67      
12 E 2945 2853 24.67      
13 E 1537 1489 0.09      
13 E 1537 1489 0.09      
14 E 1435 1390 16.44      
14 E 1435 1390 16.44      
15 E 1315 1274 0.97      
15 E 1315 1274 0.97      
16 E 1113 1079 115.01      
16 E 1113 1079 115.02      
17 E 1026 994 109.56      
17 E 1026 994 109.57      
18 E 891 863 21.38      
18 E 891 863 21.38      
19 E 489 474 13.84      
19 E 489 474 13.83      
20 E 290 280 0.02      
20 E 290 280 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 21429.4 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 20760.8 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 TPSSh/3-21G
ABC
0.16596 0.16596 0.09241

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.359 0.196
C2 -1.177 -0.680 0.196
C3 1.177 -0.680 0.196
O4 -1.208 0.697 -0.282
O5 1.208 0.697 -0.282
O6 0.000 -1.395 -0.282
H7 0.000 2.363 -0.221
H8 0.000 1.369 1.301
H9 -2.046 -1.181 -0.221
H10 -1.186 -0.684 1.301
H11 2.046 -1.181 -0.221
H12 1.186 -0.684 1.301

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.35472.35471.45831.45832.79551.08651.10483.28882.60843.28882.6084
C22.35472.35471.45832.79551.45833.28882.60841.08651.10483.28882.6084
C32.35472.35472.79551.45831.45833.28882.60843.28882.60841.08651.1048
O41.45831.45832.79552.41572.41572.05812.10192.05812.10193.75783.1852
O51.45832.79551.45832.41572.41572.05812.10193.75783.18522.05812.1019
O62.79551.45831.45832.41572.41573.75783.18522.05812.10192.05812.1019
H71.08653.28883.28882.05812.05813.75781.81784.09213.60664.09213.6066
H81.10482.60842.60842.10192.10193.18521.81783.60662.37113.60662.3711
H93.28881.08653.28882.05813.75782.05814.09213.60661.81784.09213.6066
H102.60841.10482.60842.10193.18522.10193.60662.37111.81783.60662.3711
H113.28883.28881.08653.75782.05812.05814.09213.60664.09213.60661.8178
H122.60842.60841.10483.18522.10192.10193.60662.37113.60662.37111.8178

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 107.673 C1 O5 C3 107.673
C2 O6 C3 107.673 O4 C1 O5 111.842
O4 C1 H7 107.038 O4 C1 H8 109.406
O4 C2 O6 111.842 O4 C2 H9 107.038
O4 C2 H10 109.406 O5 C1 H7 107.038
O5 C1 H8 109.406 O5 C3 O6 111.842
O5 C3 H11 107.038 O5 C3 H12 109.406
O6 C2 H9 107.038 O6 C2 H10 109.406
O6 C3 H11 107.038 O6 C3 H12 109.406
H7 C1 H8 112.103 H9 C2 H10 112.103
H11 C3 H12 112.103
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.034      
2 C 0.034      
3 C 0.034      
4 O -0.476      
5 O -0.476      
6 O -0.476      
7 H 0.251      
8 H 0.191      
9 H 0.251      
10 H 0.191      
11 H 0.251      
12 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.471 2.471
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.921 0.000 0.000
y 0.000 5.921 0.000
z 0.000 0.000 4.595


<r2> (average value of r2) Å2
<r2> 131.949
(<r2>)1/2 11.487