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: HSEh1PBE/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 HSEh1PBE/6-311G*
 hartrees
Energy at 0K-343.304455
Energy at 298.15K 
HF Energy-343.304455
Nuclear repulsion energy272.060136
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 HSEh1PBE/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 3181 3052 9.74      
2 A1 2967 2847 214.55      
3 A1 1533 1471 5.57      
4 A1 1258 1208 26.76      
5 A1 1010 969 89.92      
6 A1 779 747 0.78      
7 A1 472 453 19.10      
8 A2 1417 1360 0.00      
9 A2 1273 1221 0.00      
10 A2 994 954 0.00      
11 E 3177 3049 36.18      
11 E 3177 3049 36.18      
12 E 2948 2829 26.96      
12 E 2948 2829 26.96      
13 E 1515 1453 4.77      
13 E 1515 1453 4.77      
14 E 1466 1407 29.10      
14 E 1466 1407 29.10      
15 E 1355 1301 1.80      
15 E 1355 1301 1.80      
16 E 1219 1170 246.24      
16 E 1219 1170 246.24      
17 E 1102 1057 48.96      
17 E 1102 1057 48.96      
18 E 989 949 47.06      
18 E 989 949 47.06      
19 E 540 519 8.11      
19 E 540 519 8.11      
20 E 304 292 0.11      
20 E 304 292 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 22056.2 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 21165.1 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 HSEh1PBE/6-311G*
ABC
0.17795 0.17795 0.09892

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.319 0.178
C2 -1.143 -0.660 0.178
C3 1.143 -0.660 0.178
O4 -1.158 0.669 -0.263
O5 1.158 0.669 -0.263
O6 0.000 -1.338 -0.263
H7 0.000 2.320 -0.248
H8 0.000 1.364 1.283
H9 -2.009 -1.160 -0.248
H10 -1.181 -0.682 1.283
H11 2.009 -1.160 -0.248
H12 1.181 -0.682 1.283

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.28522.28521.40001.40002.69341.08761.10553.21962.57333.21962.5733
C22.28522.28521.40002.69341.40003.21962.57331.08761.10553.21962.5733
C32.28522.28522.69341.40001.40003.21962.57333.21962.57331.08761.1055
O41.40001.40002.69342.31692.31692.01712.05322.01712.05323.65783.1129
O51.40002.69341.40002.31692.31692.01712.05323.65783.11292.01712.0532
O62.69341.40001.40002.31692.31693.65783.11292.01712.05322.01712.0532
H71.08763.21963.21962.01712.01713.65781.80444.01853.57094.01853.5709
H81.10552.57332.57332.05322.05323.11291.80443.57092.36293.57092.3629
H93.21961.08763.21962.01713.65782.01714.01853.57091.80444.01853.5709
H102.57331.10552.57332.05323.11292.05323.57092.36291.80443.57092.3629
H113.21963.21961.08763.65782.01712.01714.01853.57094.01853.57091.8044
H122.57332.57331.10553.11292.05322.05323.57092.36293.57092.36291.8044

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 109.399 C1 O5 C3 109.399
C2 O6 C3 109.399 O4 C1 O5 111.678
O4 C1 H7 107.704 O4 C1 H8 109.504
O4 C2 O6 111.678 O4 C2 H9 107.704
O4 C2 H10 109.504 O5 C1 H7 107.704
O5 C1 H8 109.504 O5 C3 O6 111.678
O5 C3 H11 107.704 O5 C3 H12 109.504
O6 C2 H9 107.704 O6 C2 H10 109.504
O6 C3 H11 107.704 O6 C3 H12 109.504
H7 C1 H8 110.725 H9 C2 H10 110.725
H11 C3 H12 110.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.123      
2 C -0.123      
3 C -0.123      
4 O -0.311      
5 O -0.311      
6 O -0.311      
7 H 0.236      
8 H 0.197      
9 H 0.236      
10 H 0.197      
11 H 0.236      
12 H 0.197      


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 1.938 1.938
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.778 0.000 0.000
y 0.000 -34.778 0.000
z 0.000 0.000 -35.603
Traceless
 xyz
x 0.413 0.000 0.000
y 0.000 0.413 0.000
z 0.000 0.000 -0.825
Polar
3z2-r2-1.650
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 6.287 0.000 0.000
y 0.000 6.287 0.000
z 0.000 0.000 5.363


<r2> (average value of r2) Å2
<r2> 125.255
(<r2>)1/2 11.192