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

using model chemistry: PBEPBE/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 PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-307.307533
Energy at 298.15K-307.318569
Nuclear repulsion energy263.168517
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(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 3018 2987 0.00      
2 Ag 2891 2862 0.00      
3 Ag 1434 1419 0.00      
4 Ag 1369 1355 0.00      
5 Ag 1289 1276 0.00      
6 Ag 1105 1093 0.00      
7 Ag 1000 990 0.00      
8 Ag 833 825 0.00      
9 Ag 424 420 0.00      
10 Ag 405 400 0.00      
11 Au 3016 2985 86.34      
12 Au 2884 2854 51.39      
13 Au 1420 1405 0.28      
14 Au 1340 1326 19.37      
15 Au 1239 1226 36.85      
16 Au 1113 1101 166.08      
17 Au 1071 1060 1.65      
18 Au 871 863 13.20      
19 Au 242 239 0.79      
20 Bg 3016 2985 0.00      
21 Bg 2896 2867 0.00      
22 Bg 1419 1405 0.00      
23 Bg 1308 1294 0.00      
24 Bg 1196 1184 0.00      
25 Bg 1101 1090 0.00      
26 Bg 836 828 0.00      
27 Bg 470 465 0.00      
28 Bu 3017 2986 45.96      
29 Bu 2901 2871 163.23      
30 Bu 1427 1413 13.34      
31 Bu 1359 1345 3.38      
32 Bu 1278 1265 9.82      
33 Bu 1036 1025 8.68      
34 Bu 874 865 56.42      
35 Bu 581 575 9.35      
36 Bu 261 258 12.92      

Unscaled Zero Point Vibrational Energy (zpe) 25969.8 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 25702.3 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 PBEPBE/6-31G(2df,p)
ABC
0.16916 0.15442 0.09086

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.764 1.167
C2 0.000 0.764 -1.167
C3 0.000 -0.764 1.167
C4 0.000 -0.764 -1.167
O5 -0.645 -1.270 0.000
O6 0.645 1.270 0.000
H7 -1.049 1.130 1.217
H8 -1.049 1.130 -1.217
H9 1.049 -1.130 -1.217
H10 1.049 -1.130 1.217
H11 0.556 1.160 -2.034
H12 0.556 1.160 2.034
H13 -0.556 -1.160 -2.034
H14 -0.556 -1.160 2.034

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.33391.52852.78982.43201.42581.11252.63013.22062.16633.27271.10323.77592.1826
C22.33392.78981.52852.43201.42582.63011.11252.16633.22061.10323.27272.18263.7759
C31.52852.78982.33391.42582.43202.16633.22062.63011.11253.77592.18263.27271.1032
C42.78981.52852.33391.42582.43203.22062.16631.11252.63012.18263.77591.10323.2727
O52.43202.43201.42581.42582.84812.72112.72112.09052.09053.38853.38852.03882.0388
O61.42581.42582.43202.43202.84812.09052.09052.72112.72112.03882.03883.38853.3885
H71.11252.63012.16633.22062.72112.09052.43363.92903.08473.62541.80134.00712.4815
H82.63011.11253.22062.16632.72112.09052.43363.08473.92901.80133.62542.48154.0071
H93.22062.16632.63011.11252.09052.72113.92903.08472.43362.48154.00711.80133.6254
H102.16633.22061.11252.63012.09052.72113.08473.92902.43364.00712.48153.62541.8013
H113.27271.10323.77592.18263.38852.03883.62541.80132.48154.00714.06782.57284.8131
H121.10323.27272.18263.77593.38852.03881.80133.62544.00712.48154.06784.81312.5728
H133.77592.18263.27271.10322.03883.38854.00712.48151.80133.62542.57284.81314.0678
H142.18263.77591.10323.27272.03883.38852.48154.00713.62541.80134.81312.57284.0678

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 110.766 C1 C3 H10 109.208
C1 C3 H14 111.034 C1 O6 C2 109.858
C2 C4 O5 110.766 C2 C4 H9 109.208
C2 C4 H13 111.034 C3 C1 O6 110.766
C3 C1 H7 109.208 C3 C1 H12 111.034
C3 O5 C4 109.858 C4 C2 O6 110.766
C4 C2 H8 109.208 C4 C2 H11 111.034
O5 C3 H10 110.276 O5 C3 H14 106.750
O5 C4 H9 110.276 O5 C4 H13 106.750
O6 C1 H7 110.276 O6 C1 H12 106.750
O6 C2 H8 110.276 O6 C2 H11 106.750
H7 C1 H12 108.769 H8 C2 H11 108.769
H9 C4 H13 108.769 H10 C3 H14 108.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.115      
2 C -0.115      
3 C -0.115      
4 C -0.115      
5 O -0.208      
6 O -0.208      
7 H 0.102      
8 H 0.102      
9 H 0.102      
10 H 0.102      
11 H 0.117      
12 H 0.117      
13 H 0.117      
14 H 0.117      


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 -37.706 -2.622 0.000
y -2.622 -40.017 0.000
z 0.000 0.000 -31.227
Traceless
 xyz
x -2.084 -2.622 0.000
y -2.622 -5.551 0.000
z 0.000 0.000 7.635
Polar
3z2-r215.269
x2-y22.311
xy-2.622
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.797 -0.145 0.000
y -0.145 7.200 0.000
z 0.000 0.000 8.960


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000