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All results from a given calculation for C4H8O2 (1,4-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 C2H 1Ag
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-307.293284
Energy at 298.15K-307.304339
Nuclear repulsion energy262.732698
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 Ag 3030 2989 0.00      
2 Ag 2905 2865 0.00      
3 Ag 1449 1429 0.00      
4 Ag 1382 1363 0.00      
5 Ag 1294 1277 0.00      
6 Ag 1110 1095 0.00      
7 Ag 1000 986 0.00      
8 Ag 833 822 0.00      
9 Ag 426 420 0.00      
10 Ag 411 405 0.00      
11 Au 3029 2987 86.53      
12 Au 2898 2858 53.69      
13 Au 1434 1415 0.12      
14 Au 1349 1331 24.32      
15 Au 1245 1228 34.47      
16 Au 1114 1099 169.25      
17 Au 1077 1062 2.65      
18 Au 873 861 14.82      
19 Au 247 243 1.03      
20 Bg 3029 2987 0.00      
21 Bg 2909 2869 0.00      
22 Bg 1433 1413 0.00      
23 Bg 1313 1295 0.00      
24 Bg 1202 1186 0.00      
25 Bg 1104 1089 0.00      
26 Bg 841 830 0.00      
27 Bg 472 465 0.00      
28 Bu 3029 2988 52.09      
29 Bu 2914 2874 173.76      
30 Bu 1442 1423 12.80      
31 Bu 1367 1348 4.24      
32 Bu 1282 1265 8.45      
33 Bu 1040 1025 8.90      
34 Bu 874 862 58.98      
35 Bu 586 578 11.09      
36 Bu 265 262 15.70      

Unscaled Zero Point Vibrational Energy (zpe) 26104.2 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 25746.5 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
0.16842 0.15406 0.09057

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.764 1.170
C2 0.000 0.764 -1.170
C3 0.000 -0.764 1.170
C4 0.000 -0.764 -1.170
O5 -0.649 -1.271 0.000
O6 0.649 1.271 0.000
H7 -1.049 1.131 1.218
H8 -1.049 1.131 -1.218
H9 1.049 -1.131 -1.218
H10 1.049 -1.131 1.218
H11 0.555 1.161 -2.037
H12 0.555 1.161 2.037
H13 -0.555 -1.161 -2.037
H14 -0.555 -1.161 2.037

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.33971.52822.79462.43531.43051.11242.63383.22382.16643.27851.10333.78132.1833
C22.33972.79461.52822.43531.43052.63381.11242.16643.22381.10333.27852.18333.7813
C31.52822.79462.33971.43052.43532.16643.22382.63381.11243.78132.18333.27851.1033
C42.79461.52822.33971.43052.43533.22382.16641.11242.63382.18333.78131.10333.2785
O52.43532.43531.43051.43052.85372.72242.72242.09422.09423.39313.39312.04192.0419
O61.43051.43052.43532.43532.85372.09422.09422.72242.72242.04192.04193.39313.3931
H71.11242.63382.16643.22382.72242.09422.43593.93083.08503.62871.80124.01152.4837
H82.63381.11243.22382.16642.72242.09422.43593.08503.93081.80123.62872.48374.0115
H93.22382.16642.63381.11242.09422.72243.93083.08502.43592.48374.01151.80123.6287
H102.16643.22381.11242.63382.09422.72243.08503.93082.43594.01152.48373.62871.8012
H113.27851.10333.78132.18333.39312.04193.62871.80122.48374.01154.07362.57424.8188
H121.10333.27852.18333.78133.39312.04191.80123.62874.01152.48374.07364.81882.5742
H133.78132.18333.27851.10332.04193.39314.01152.48371.80123.62872.57424.81884.0736
H142.18333.78131.10333.27852.04193.39312.48374.01153.62871.80124.81882.57424.0736

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 110.749 C1 C3 H10 109.244
C1 C3 H14 111.105 C1 O6 C2 109.734
C2 C4 O5 110.749 C2 C4 H9 109.244
C2 C4 H13 111.105 C3 C1 O6 110.749
C3 C1 H7 109.244 C3 C1 H12 111.105
C3 O5 C4 109.734 C4 C2 O6 110.749
C4 C2 H8 109.244 C4 C2 H11 111.105
O5 C3 H10 110.261 O5 C3 H14 106.678
O5 C4 H9 110.261 O5 C4 H13 106.678
O6 C1 H7 110.261 O6 C1 H12 106.678
O6 C2 H8 110.261 O6 C2 H11 106.678
H7 C1 H12 108.761 H8 C2 H11 108.761
H9 C4 H13 108.761 H10 C3 H14 108.761
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 -0.009      
2 C -0.009      
3 C -0.009      
4 C -0.009      
5 O -0.432      
6 O -0.432      
7 H 0.106      
8 H 0.106      
9 H 0.106      
10 H 0.106      
11 H 0.119      
12 H 0.119      
13 H 0.119      
14 H 0.119      


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 -38.054 -2.825 0.000
y -2.825 -40.354 0.000
z 0.000 0.000 -30.798
Traceless
 xyz
x -2.477 -2.825 0.000
y -2.825 -5.929 0.000
z 0.000 0.000 8.406
Polar
3z2-r216.812
x2-y22.301
xy-2.825
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.624 -0.136 0.000
y -0.136 6.892 0.000
z 0.000 0.000 8.759


<r2> (average value of r2) Å2
<r2> 140.841
(<r2>)1/2 11.868