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All results from a given calculation for C4H8O2 (1,4-Dioxane)

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-307.548880
Energy at 298.15K-307.560063
Nuclear repulsion energy265.968155
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 B1B95/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3108 2977 0.00      
2 Ag 2987 2861 0.00      
3 Ag 1486 1423 0.00      
4 Ag 1422 1362 0.00      
5 Ag 1334 1277 0.00      
6 Ag 1143 1095 0.00      
7 Ag 1046 1002 0.00      
8 Ag 870 834 0.00      
9 Ag 426 408 0.00      
10 Ag 412 394 0.00      
11 Au 3106 2975 88.01      
12 Au 2981 2855 45.24      
13 Au 1470 1408 0.27      
14 Au 1390 1331 23.72      
15 Au 1286 1232 58.80      
16 Au 1185 1135 164.32      
17 Au 1106 1059 1.77      
18 Au 908 869 13.21      
19 Au 247 236 0.86      
20 Bg 3106 2975 0.00      
21 Bg 2993 2866 0.00      
22 Bg 1468 1406 0.00      
23 Bg 1352 1295 0.00      
24 Bg 1239 1186 0.00      
25 Bg 1172 1123 0.00      
26 Bg 864 828 0.00      
27 Bg 480 459 0.00      
28 Bu 3107 2976 47.18      
29 Bu 2996 2870 152.12      
30 Bu 1479 1416 13.01      
31 Bu 1406 1347 4.10      
32 Bu 1322 1266 12.61      
33 Bu 1070 1025 10.06      
34 Bu 918 879 63.02      
35 Bu 591 566 11.25      
36 Bu 267 256 14.92      

Unscaled Zero Point Vibrational Energy (zpe) 26870.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 25734.1 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 B1B95/6-31G(2df,p)
ABC
0.17240 0.15809 0.09288

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.758 1.156
C2 0.000 0.758 -1.156
C3 0.000 -0.758 1.156
C4 0.000 -0.758 -1.156
O5 -0.639 -1.251 0.000
O6 0.639 1.251 0.000
H7 -1.039 1.121 1.200
H8 -1.039 1.121 -1.200
H9 1.039 -1.121 -1.200
H10 1.039 -1.121 1.200
H11 0.546 1.151 -2.017
H12 0.546 1.151 2.017
H13 -0.546 -1.151 -2.017
H14 -0.546 -1.151 2.017

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.31161.51622.76452.40391.40951.10142.59993.18722.14743.24321.09263.74282.1643
C22.31162.76451.51622.40391.40952.59991.10142.14743.18721.09263.24322.16433.7428
C31.51622.76452.31161.40952.40392.14743.18722.59991.10143.74282.16433.24321.0926
C42.76451.51622.31161.40952.40393.18722.14741.10142.59992.16433.74281.09263.2432
O52.40392.40391.40951.40952.80872.68752.68752.06682.06683.35253.35252.02162.0216
O61.40951.40952.40392.40392.80872.06682.06682.68752.68752.02162.02163.35253.3525
H71.10142.59992.14743.18722.68752.06682.39953.88583.05653.58601.78343.96882.4642
H82.59991.10143.18722.14742.68752.06682.39953.05653.88581.78343.58602.46423.9688
H93.18722.14742.59991.10142.06682.68753.88583.05652.39952.46423.96881.78343.5860
H102.14743.18721.10142.59992.06682.68753.05653.88582.39953.96882.46423.58601.7834
H113.24321.09263.74282.16433.35252.02163.58601.78342.46423.96884.03392.54774.7711
H121.09263.24322.16433.74283.35252.02161.78343.58603.96882.46424.03394.77112.5477
H133.74282.16433.24321.09262.02163.35253.96882.46421.78343.58602.54774.77114.0339
H142.16433.74281.09263.24322.02163.35252.46423.96883.58601.78344.77112.54774.0339

picture of 1,4-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 O5 110.452 C1 C3 H10 109.224
C1 C3 H14 111.077 C1 O6 C2 110.172
C2 C4 O5 110.452 C2 C4 H9 109.224
C2 C4 H13 111.077 C3 C1 O6 110.452
C3 C1 H7 109.224 C3 C1 H12 111.077
C3 O5 C4 110.172 C4 C2 O6 110.452
C4 C2 H8 109.224 C4 C2 H11 111.077
O5 C3 H10 110.200 O5 C3 H14 107.110
O5 C4 H9 110.200 O5 C4 H13 107.110
O6 C1 H7 110.200 O6 C1 H12 107.110
O6 C2 H8 110.200 O6 C2 H11 107.110
H7 C1 H12 108.746 H8 C2 H11 108.746
H9 C4 H13 108.746 H10 C3 H14 108.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 C -0.089      
3 C -0.089      
4 C -0.089      
5 O -0.273      
6 O -0.273      
7 H 0.105      
8 H 0.105      
9 H 0.105      
10 H 0.105      
11 H 0.120      
12 H 0.120      
13 H 0.120      
14 H 0.120      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.486 -2.818 0.000
y -2.818 -39.808 0.000
z 0.000 0.000 -30.733
Traceless
 xyz
x -2.215 -2.818 0.000
y -2.818 -5.698 0.000
z 0.000 0.000 7.914
Polar
3z2-r215.827
x2-y22.322
xy-2.818
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.546 -0.148 0.000
y -0.148 6.868 0.000
z 0.000 0.000 8.510


<r2> (average value of r2) Å2
<r2> 137.763
(<r2>)1/2 11.737