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All results from a given calculation for C4H8O2 (1,3-Dioxane)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-307.292182
Energy at 298.15K-307.303328
Nuclear repulsion energy263.361812
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 PBEPBE/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 A' 3074 3030 33.62      
2 A' 3052 3009 30.06      
3 A' 3043 3000 21.05      
4 A' 2993 2950 20.11      
5 A' 2899 2858 110.08      
6 A' 2840 2799 85.07      
7 A' 1482 1461 6.19      
8 A' 1467 1446 0.17      
9 A' 1445 1424 5.16      
10 A' 1379 1359 22.12      
11 A' 1290 1272 4.73      
12 A' 1175 1158 45.91      
13 A' 1146 1129 116.78      
14 A' 1088 1073 19.09      
15 A' 984 970 35.61      
16 A' 899 886 10.04      
17 A' 831 819 10.85      
18 A' 628 619 4.03      
19 A' 476 469 0.49      
20 A' 433 427 8.97      
21 A' 265 261 1.73      
22 A" 3046 3003 45.83      
23 A" 2891 2849 21.15      
24 A" 1468 1447 4.88      
25 A" 1410 1390 15.25      
26 A" 1353 1334 0.33      
27 A" 1334 1315 0.13      
28 A" 1301 1283 0.86      
29 A" 1226 1208 24.92      
30 A" 1199 1182 0.36      
31 A" 1035 1020 17.03      
32 A" 998 984 109.89      
33 A" 898 885 25.96      
34 A" 877 864 0.16      
35 A" 451 445 6.31      
36 A" 262 259 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 26318.9 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 25942.5 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 PBEPBE/6-31G*
ABC
0.16558 0.15807 0.09102

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.627 -1.202 0.000
O2 0.017 -0.771 1.184
O3 0.017 -0.771 -1.184
C4 0.017 0.661 1.245
C5 0.017 0.661 -1.245
C6 0.693 1.250 0.000
H7 -0.590 -2.301 0.000
H8 -1.686 -0.842 0.000
H9 0.545 0.931 2.173
H10 -1.031 1.033 1.319
H11 0.545 0.931 -2.173
H12 -1.031 1.033 -1.319
H13 1.761 0.972 0.000
H14 0.620 2.353 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.41451.41452.33082.33082.78391.10011.11893.26292.62643.26292.62643.22933.7666
O21.41452.36741.43322.81902.43732.02782.07542.03872.09073.80093.25832.73543.3944
O31.41452.36742.81901.43322.43732.02782.07543.80093.25832.03872.09072.73543.3944
C42.33081.43322.81902.48911.53373.27002.59041.10211.11443.46902.79442.16522.1850
C52.33082.81901.43322.48911.53373.27002.59043.46902.79441.10211.11442.16522.1850
C62.78392.43732.43731.53371.53373.77563.16802.20152.18122.20152.18121.10391.1055
H71.10012.02782.02783.27003.27003.77561.82474.05743.61284.05743.61284.03064.8088
H81.11892.07542.07542.59042.59043.16801.82473.58452.38483.58452.38483.89593.9404
H93.26292.03873.80091.10213.46902.20154.05743.58451.79544.34673.83282.49082.5980
H102.62642.09073.25831.11442.79442.18123.61282.38481.79543.83282.63813.08852.4911
H113.26293.80092.03873.46901.10212.20154.05743.58454.34673.83281.79542.49082.5980
H122.62643.25832.09072.79441.11442.18123.61282.38483.83282.63811.79543.08852.4911
H133.22932.73542.73542.16522.16521.10394.03063.89592.49083.08852.49083.08851.7913
H143.76663.39443.39442.18502.18501.10554.80883.94042.59802.49112.59802.49111.7913

picture of 1,3-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C4 109.865 C1 O3 C5 109.865
O2 C1 O3 113.609 O2 C1 H7 106.820
O2 C1 H8 109.457 O2 C4 C6 110.426
O2 C4 H9 106.314 O2 C4 H10 109.664
O3 C1 H7 106.820 O3 C1 H8 109.457
O3 C5 C6 110.426 O3 C5 H11 106.314
O3 C5 H12 109.664 C4 C6 C5 108.484
C4 C6 H13 109.273 C4 C6 H14 110.724
C5 C6 H13 109.273 C5 C6 H14 110.724
C6 C4 H9 112.247 C6 C4 H10 109.899
C6 C5 H11 112.247 C6 C5 H12 109.899
H7 C1 H8 110.622 H9 C4 H10 108.193
H11 C5 H12 108.193 H13 C6 H14 108.341
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.103      
2 O -0.406      
3 O -0.406      
4 C -0.093      
5 C -0.093      
6 C -0.312      
7 H 0.167      
8 H 0.117      
9 H 0.166      
10 H 0.133      
11 H 0.166      
12 H 0.133      
13 H 0.173      
14 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.569 1.782 0.000 1.871
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.896 1.595 0.000
y 1.595 -34.855 0.000
z 0.000 0.000 -38.413
Traceless
 xyz
x 0.738 1.595 0.000
y 1.595 2.300 0.000
z 0.000 0.000 -3.038
Polar
3z2-r2-6.076
x2-y2-1.041
xy1.595
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.683 0.497 0.000
y 0.497 7.753 0.000
z 0.000 0.000 7.212


<r2> (average value of r2) Å2
<r2> 140.443
(<r2>)1/2 11.851