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: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-343.225868
Energy at 298.15K-343.235625
HF Energy-342.924297
Nuclear repulsion energy270.307408
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 B2PLYP/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 3209 3046 12.35      
2 A1 3004 2852 183.98      
3 A1 1570 1490 4.29      
4 A1 1265 1201 22.56      
5 A1 1000 949 80.58      
6 A1 762 724 0.55      
7 A1 470 446 19.80      
8 A2 1424 1352 0.00      
9 A2 1272 1207 0.00      
10 A2 986 936 0.00      
11 E 3205 3042 33.86      
11 E 3205 3042 33.88      
12 E 2987 2835 22.40      
12 E 2987 2835 22.41      
13 E 1551 1472 0.26      
13 E 1551 1472 0.26      
14 E 1478 1403 39.12      
14 E 1478 1403 39.12      
15 E 1354 1286 0.74      
15 E 1354 1286 0.74      
16 E 1213 1152 224.11      
16 E 1213 1152 224.09      
17 E 1104 1048 63.95      
17 E 1104 1048 63.95      
18 E 972 923 41.69      
18 E 972 923 41.69      
19 E 531 504 8.94      
19 E 531 504 8.94      
20 E 298 283 0.10      
20 E 298 283 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 22174.1 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 21047.7 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 B2PLYP/6-31G*
ABC
0.17555 0.17555 0.09757

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.329 0.181
C2 -1.151 -0.664 0.181
C3 1.151 -0.664 0.181
O4 -1.167 0.674 -0.266
O5 1.167 0.674 -0.266
O6 0.000 -1.348 -0.266
H7 0.000 2.328 -0.247
H8 0.000 1.374 1.284
H9 -2.016 -1.164 -0.247
H10 -1.190 -0.687 1.284
H11 2.016 -1.164 -0.247
H12 1.190 -0.687 1.284

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.30132.30131.41091.41092.71321.08751.10413.23462.58733.23462.5873
C22.30132.30131.41092.71321.41093.23462.58731.08751.10413.23462.5873
C32.30132.30132.71321.41091.41093.23462.58733.23462.58731.08751.1041
O41.41091.41092.71322.33402.33402.02472.06272.02472.06273.67583.1317
O51.41092.71321.41092.33402.33402.02472.06273.67583.13172.02472.0627
O62.71321.41091.41092.33402.33403.67583.13172.02472.06272.02472.0627
H71.08753.23463.23462.02472.02473.67581.80474.03263.58494.03263.5849
H81.10412.58732.58732.06272.06273.13171.80473.58492.37923.58492.3792
H93.23461.08753.23462.02473.67582.02474.03263.58491.80474.03263.5849
H102.58731.10412.58732.06273.13172.06273.58492.37921.80473.58492.3792
H113.23463.23461.08753.67582.02472.02474.03263.58494.03263.58491.8047
H122.58732.58731.10413.13172.06272.06273.58492.37923.58492.37921.8047

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 109.283 C1 O5 C3 109.283
C2 O6 C3 109.283 O4 C1 O5 111.615
O4 C1 H7 107.566 O4 C1 H8 109.601
O4 C2 O6 111.615 O4 C2 H9 107.566
O4 C2 H10 109.601 O5 C1 H7 107.566
O5 C1 H8 109.601 O5 C3 O6 111.615
O5 C3 H11 107.566 O5 C3 H12 109.601
O6 C2 H9 107.566 O6 C2 H10 109.601
O6 C3 H11 107.566 O6 C3 H12 109.601
H7 C1 H8 110.866 H9 C2 H10 110.866
H11 C3 H12 110.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.205      
2 C 0.205      
3 C 0.205      
4 O -0.521      
5 O -0.521      
6 O -0.521      
7 H 0.184      
8 H 0.132      
9 H 0.184      
10 H 0.132      
11 H 0.184      
12 H 0.132      


Electric dipole moments


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 6.069 0.000 0.000
y 0.000 6.069 0.000
z 0.000 0.000 5.038


<r2> (average value of r2) Å2
<r2> 126.502
(<r2>)1/2 11.247