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

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-339.760005
Energy at 298.15K 
HF Energy-339.760005
Nuclear repulsion energy267.397324
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 HF/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 3370 3042 17.46      
2 A1 3192 2881 181.54      
3 A1 1711 1544 6.23      
4 A1 1323 1194 19.73      
5 A1 1039 937 107.31      
6 A1 785 709 1.08      
7 A1 419 378 37.44      
8 A2 1528 1379 0.00      
9 A2 1360 1228 0.00      
10 A2 1102 994 0.00      
11 E 3363 3035 29.01      
11 E 3363 3035 29.01      
12 E 3174 2865 27.08      
12 E 3174 2865 27.08      
13 E 1688 1523 0.53      
13 E 1688 1523 0.53      
14 E 1584 1429 33.37      
14 E 1584 1429 33.37      
15 E 1436 1296 0.33      
15 E 1436 1296 0.33      
16 E 1277 1152 256.30      
16 E 1277 1152 256.30      
17 E 1159 1046 77.79      
17 E 1159 1046 77.79      
18 E 990 894 17.85      
18 E 990 894 17.85      
19 E 548 494 17.80      
19 E 548 494 17.80      
20 E 269 243 0.33      
20 E 269 243 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 23399.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 21120.1 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 HF/3-21G*
ABC
0.17140 0.17140 0.09420

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.370 0.170
C2 -1.186 -0.685 0.170
C3 1.186 -0.685 0.170
O4 -1.176 0.679 -0.246
O5 1.176 0.679 -0.246
O6 0.000 -1.358 -0.246
H7 0.000 2.330 -0.305
H8 0.000 1.466 1.252
H9 -2.018 -1.165 -0.305
H10 -1.269 -0.733 1.252
H11 2.018 -1.165 -0.305
H12 1.269 -0.733 1.252

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.37212.37211.42601.42602.75931.07181.08593.27452.68343.27452.6834
C22.37212.37211.42602.75931.42603.27452.68341.07181.08593.27452.6834
C32.37212.37212.75931.42601.42603.27452.68343.27452.68341.07181.0859
O41.42601.42602.75932.35252.35252.02812.06042.02812.06043.68893.1964
O51.42602.75931.42602.35252.35252.02812.06043.68893.19642.02812.0604
O62.75931.42601.42602.35252.35253.68893.19642.02812.06042.02812.0604
H71.07183.27453.27452.02812.02813.68891.78084.03593.66284.03593.6628
H81.08592.68342.68342.06042.06043.19641.78083.66282.53843.66282.5384
H93.27451.07183.27452.02813.68892.02814.03593.66281.78084.03593.6628
H102.68341.08592.68342.06043.19642.06043.66282.53841.78083.66282.5384
H113.27453.27451.07183.68892.02812.02814.03593.66284.03593.66281.7808
H122.68342.68341.08593.19642.06042.06043.66282.53843.66282.53841.7808

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 112.557 C1 O5 C3 112.557
C2 O6 C3 112.557 O4 C1 O5 111.154
O4 C1 H7 107.733 O4 C1 H8 109.479
O4 C2 O6 111.154 O4 C2 H9 107.733
O4 C2 H10 109.479 O5 C1 H7 107.733
O5 C1 H8 109.479 O5 C3 O6 111.154
O5 C3 H11 107.733 O5 C3 H12 109.479
O6 C2 H9 107.733 O6 C2 H10 109.479
O6 C3 H11 107.733 O6 C3 H12 109.479
H7 C1 H8 111.248 H9 C2 H10 111.248
H11 C3 H12 111.248
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.228      
2 C 0.228      
3 C 0.228      
4 O -0.669      
5 O -0.669      
6 O -0.669      
7 H 0.253      
8 H 0.188      
9 H 0.253      
10 H 0.188      
11 H 0.253      
12 H 0.188      


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 2.729 2.729
CHELPG 0.000 -0.004 2.796 2.796
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.993 0.000 0.000
y 0.000 -34.993 0.000
z 0.000 0.000 -35.548
Traceless
 xyz
x 0.278 0.000 0.000
y 0.000 0.278 0.000
z 0.000 0.000 -0.556
Polar
3z2-r2-1.111
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 5.230 0.000 0.000
y 0.000 5.230 0.000
z 0.000 0.000 4.220


<r2> (average value of r2) Å2
<r2> 129.692
(<r2>)1/2 11.388