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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-307.552983
Energy at 298.15K-307.564280
Nuclear repulsion energy265.315297
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3158 3022 35.96      
2 A' 3131 2996 31.33      
3 A' 3121 2986 23.97      
4 A' 3069 2937 19.48      
5 A' 2987 2858 110.64      
6 A' 2935 2808 81.68      
7 A' 1536 1469 5.69      
8 A' 1521 1455 0.16      
9 A' 1492 1427 5.34      
10 A' 1428 1367 23.81      
11 A' 1333 1276 5.70      
12 A' 1223 1170 113.18      
13 A' 1198 1146 79.09      
14 A' 1127 1078 13.00      
15 A' 1022 978 39.17      
16 A' 930 890 11.01      
17 A' 860 823 9.95      
18 A' 653 625 5.02      
19 A' 491 470 0.59      
20 A' 436 417 9.95      
21 A' 268 257 1.95      
22 A" 3127 2992 46.87      
23 A" 2979 2850 21.69      
24 A" 1519 1453 5.12      
25 A" 1462 1399 17.20      
26 A" 1402 1342 0.79      
27 A" 1381 1321 0.12      
28 A" 1348 1289 1.22      
29 A" 1270 1215 32.01      
30 A" 1242 1189 0.13      
31 A" 1098 1051 65.63      
32 A" 1047 1002 67.51      
33 A" 935 895 20.44      
34 A" 907 868 0.04      
35 A" 464 444 7.17      
36 A" 266 254 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 27184.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 26007.3 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 B3PW91/6-31G*
ABC
0.16769 0.16070 0.09224

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.618 -1.200 0.000
O2 0.016 -0.763 1.170
O3 0.016 -0.763 -1.170
C4 0.016 0.656 1.239
C5 0.016 0.656 -1.239
C6 0.684 1.246 0.000
H7 -0.572 -2.291 0.000
H8 -1.673 -0.859 0.000
H9 0.544 0.922 2.159
H10 -1.023 1.023 1.320
H11 0.544 0.922 -2.159
H12 -1.023 1.023 -1.320
H13 1.747 0.979 0.000
H14 0.604 2.341 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.40131.40132.31962.31962.77161.09151.10933.24292.61763.24292.61763.21603.7459
O21.40132.34101.42012.79582.41942.01252.05772.02372.07193.76863.23652.72033.3687
O31.40132.34102.79581.42012.41942.01252.05773.76863.23652.02372.07192.72033.3687
C42.31961.42012.79582.47741.52633.24982.58511.09381.10523.44862.78642.15272.1725
C52.31962.79581.42012.47741.52633.24982.58513.44862.78641.09381.10522.15272.1725
C62.77162.41942.41941.52631.52633.75353.16072.18742.16942.18742.16941.09601.0974
H71.09152.01252.01253.24983.24983.75351.80674.02853.59594.02853.59594.00854.7784
H81.10932.05772.05772.58512.58513.16071.80673.57082.38953.57082.38953.88293.9272
H93.24292.02373.76861.09383.44862.18744.02853.57081.78014.31753.81712.47182.5838
H102.61762.07193.23651.10522.78642.16943.59592.38951.78013.81712.64083.06862.4747
H113.24293.76862.02373.44861.09382.18744.02853.57084.31753.81711.78012.47182.5838
H122.61763.23652.07192.78641.10522.16943.59592.38953.81712.64081.78013.06862.4747
H133.21602.72032.72032.15272.15271.09604.00853.88292.47183.06862.47183.06861.7780
H143.74593.36873.36872.17252.17251.09744.77843.92722.58382.47472.58382.47471.7780

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 110.602 C1 O3 C5 110.602
O2 C1 O3 113.296 O2 C1 H7 107.015
O2 C1 H8 109.547 O2 C4 C6 110.348
O2 C4 H9 106.496 O2 C4 H10 109.632
O3 C1 H7 107.015 O3 C1 H8 109.547
O3 C5 C6 110.348 O3 C5 H11 106.496
O3 C5 H12 109.632 C4 C6 C5 108.505
C4 C6 H13 109.261 C4 C6 H14 110.735
C5 C6 H13 109.261 C5 C6 H14 110.735
C6 C4 H9 112.153 C6 C4 H10 110.027
C6 C5 H11 112.153 C6 C5 H12 110.027
H7 C1 H8 110.356 H9 C4 H10 108.087
H11 C5 H12 108.087 H13 C6 H14 108.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.130      
2 O -0.456      
3 O -0.456      
4 C -0.092      
5 C -0.092      
6 C -0.344      
7 H 0.182      
8 H 0.128      
9 H 0.180      
10 H 0.144      
11 H 0.180      
12 H 0.144      
13 H 0.187      
14 H 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.653 1.888 0.000 1.998
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.552 1.655 0.000
y 1.655 -34.568 0.000
z 0.000 0.000 -38.336
Traceless
 xyz
x 0.900 1.655 0.000
y 1.655 2.376 0.000
z 0.000 0.000 -3.277
Polar
3z2-r2-6.553
x2-y2-0.984
xy1.655
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.477 0.441 0.000
y 0.441 7.418 0.000
z 0.000 0.000 6.912


<r2> (average value of r2) Å2
<r2> 138.710
(<r2>)1/2 11.778