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: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A1
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-343.609966
Energy at 298.15K 
HF Energy-343.609966
Nuclear repulsion energy272.452842
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 mPW1PW91/6-311+G(3df,2p)
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 3160 3160 4.79      
2 A1 2963 2963 172.53      
3 A1 1525 1525 5.80      
4 A1 1253 1253 22.05      
5 A1 1009 1009 75.76      
6 A1 775 775 0.81      
7 A1 464 464 18.75      
8 A2 1409 1409 0.00      
9 A2 1260 1260 0.00      
10 A2 994 994 0.00      
11 E 3157 3157 27.24      
11 E 3157 3157 27.24      
12 E 2948 2948 23.47      
12 E 2948 2948 23.48      
13 E 1508 1508 3.07      
13 E 1508 1508 3.07      
14 E 1447 1447 17.95      
14 E 1447 1447 17.95      
15 E 1341 1341 2.58      
15 E 1341 1341 2.58      
16 E 1216 1216 243.09      
16 E 1216 1216 243.08      
17 E 1097 1097 40.53      
17 E 1097 1097 40.53      
18 E 983 983 52.27      
18 E 983 983 52.27      
19 E 538 538 8.09      
19 E 538 538 8.09      
20 E 298 298 0.05      
20 E 298 298 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 21938.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 21938.4 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 mPW1PW91/6-311+G(3df,2p)
ABC
0.17847 0.17847 0.09918

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.320 0.178
C2 -1.143 -0.660 0.178
C3 1.143 -0.660 0.178
O4 -1.155 0.667 -0.262
O5 1.155 0.667 -0.262
O6 0.000 -1.334 -0.262
H7 0.000 2.320 -0.246
H8 0.000 1.365 1.279
H9 -2.009 -1.160 -0.246
H10 -1.182 -0.682 1.279
H11 2.009 -1.160 -0.246
H12 1.182 -0.682 1.279

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.28642.28641.39801.39802.68991.08581.10253.21952.57293.21952.5729
C22.28642.28641.39802.68991.39803.21952.57291.08581.10253.21952.5729
C32.28642.28642.68991.39801.39803.21952.57293.21952.57291.08581.1025
O41.39801.39802.68992.30992.30992.01642.04892.01642.04893.65323.1077
O51.39802.68991.39802.30992.30992.01642.04893.65323.10772.01642.0489
O62.68991.39801.39802.30992.30993.65323.10772.01642.04892.01642.0489
H71.08583.21953.21952.01642.01643.65321.80004.01763.56884.01763.5688
H81.10252.57292.57292.04892.04893.10771.80003.56882.36363.56882.3636
H93.21951.08583.21952.01643.65322.01644.01763.56881.80004.01763.5688
H102.57291.10252.57292.04893.10772.04893.56882.36361.80003.56882.3636
H113.21953.21951.08583.65322.01642.01644.01763.56884.01763.56881.8000
H122.57292.57291.10253.10772.04892.04893.56882.36363.56882.36361.8000

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 109.718 C1 O5 C3 109.718
C2 O6 C3 109.718 O4 C1 O5 111.409
O4 C1 H7 107.885 O4 C1 H8 109.483
O4 C2 O6 111.409 O4 C2 H9 107.885
O4 C2 H10 109.483 O5 C1 H7 107.885
O5 C1 H8 109.483 O5 C3 O6 111.409
O5 C3 H11 107.885 O5 C3 H12 109.483
O6 C2 H9 107.885 O6 C2 H10 109.483
O6 C3 H11 107.885 O6 C3 H12 109.483
H7 C1 H8 110.679 H9 C2 H10 110.679
H11 C3 H12 110.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.477      
2 C 0.477      
3 C 0.477      
4 O -0.691      
5 O -0.691      
6 O -0.691      
7 H 0.098      
8 H 0.116      
9 H 0.098      
10 H 0.116      
11 H 0.098      
12 H 0.116      


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 1.999 1.999
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.945 0.000 0.000
y 0.000 -34.945 0.000
z 0.000 0.000 -35.825
Traceless
 xyz
x 0.440 0.000 0.000
y 0.000 0.440 0.000
z 0.000 0.000 -0.880
Polar
3z2-r2-1.760
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.351 0.000 0.000
y 0.000 7.351 0.000
z 0.000 0.000 6.359


<r2> (average value of r2) Å2
<r2> 125.103
(<r2>)1/2 11.185