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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-303.551143
Energy at 298.15K-303.561680
Nuclear repulsion energy253.114781
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 BLYP/STO-3G
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 3279 3033 0.00      
2 Ag 3130 2896 0.00      
3 Ag 1584 1465 0.00      
4 Ag 1440 1333 0.00      
5 Ag 1337 1237 0.00      
6 Ag 1133 1048 0.00      
7 Ag 995 920 0.00      
8 Ag 832 770 0.00      
9 Ag 456 422 0.00      
10 Ag 376 348 0.00      
11 Au 3278 3032 2.71      
12 Au 3131 2896 26.94      
13 Au 1580 1462 1.17      
14 Au 1408 1303 29.50      
15 Au 1273 1178 10.57      
16 Au 1102 1019 25.83      
17 Au 1085 1003 17.24      
18 Au 883 817 0.00      
19 Au 215 199 0.61      
20 Bg 3281 3035 0.00      
21 Bg 3139 2904 0.00      
22 Bg 1577 1459 0.00      
23 Bg 1366 1264 0.00      
24 Bg 1226 1135 0.00      
25 Bg 1116 1033 0.00      
26 Bg 873 808 0.00      
27 Bg 456 422 0.00      
28 Bu 3282 3037 18.69      
29 Bu 3139 2904 45.81      
30 Bu 1578 1460 1.69      
31 Bu 1450 1341 8.45      
32 Bu 1311 1213 7.45      
33 Bu 1059 980 7.07      
34 Bu 889 823 6.74      
35 Bu 586 542 4.06      
36 Bu 268 248 11.61      

Unscaled Zero Point Vibrational Energy (zpe) 27554.2 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 25493.2 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 BLYP/STO-3G
ABC
0.16123 0.13765 0.08363

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.250 -0.756 1.191
C2 0.250 -0.756 -1.191
C3 -0.250 0.756 1.191
C4 -0.250 0.756 -1.191
O5 0.250 1.512 0.000
O6 -0.250 -1.512 0.000
H7 1.373 -0.769 1.241
H8 1.373 -0.769 -1.241
H9 -1.373 0.769 -1.241
H10 -1.373 0.769 1.241
H11 -0.156 -1.292 -2.084
H12 -0.156 -1.292 2.084
H13 0.156 1.292 -2.084
H14 0.156 1.292 2.084

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.38261.59382.86652.56251.49721.12392.67933.29872.22843.34331.11743.86402.2364
C22.38262.86651.59382.56251.49722.67931.12392.22843.29871.11743.34332.23643.8640
C31.59382.86652.38261.49722.56252.22843.29872.67931.12393.86402.23643.34331.1174
C42.86651.59382.38261.49722.56253.29872.22841.12392.67932.23643.86401.11743.3433
O52.56252.56251.49721.49723.06582.82942.82942.17492.17493.51733.51732.09742.0974
O61.49721.49722.56252.56253.06582.17492.17492.82942.82942.09742.09743.51733.5173
H71.12392.67932.22843.29872.82942.17492.48284.00903.14763.69721.82274.09692.5373
H82.67931.12393.29872.22842.82942.17492.48283.14764.00901.82273.69722.53734.0969
H93.29872.22842.67931.12392.17492.82944.00903.14762.48282.53734.09691.82273.6972
H102.22843.29871.12392.67932.17492.82943.14764.00902.48284.09692.53733.69721.8227
H113.34331.11743.86402.23643.51732.09743.69721.82272.53734.09694.16742.60274.9134
H121.11743.34332.23643.86403.51732.09741.82273.69724.09692.53734.16744.91342.6027
H133.86402.23643.34331.11742.09743.51734.09692.53731.82273.69722.60274.91344.1674
H142.23643.86401.11743.34332.09743.51732.53734.09693.69721.82274.91342.60274.1674

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 111.966 C1 C3 H10 108.932
C1 C3 H14 109.911 C1 O6 C2 105.445
C2 C4 O5 111.966 C2 C4 H9 108.932
C2 C4 H13 109.911 C3 C1 O6 111.966
C3 C1 H7 108.932 C3 C1 H12 109.911
C3 O5 C4 105.445 C4 C2 O6 111.966
C4 C2 H8 108.932 C4 C2 H11 109.911
O5 C3 H10 111.358 O5 C3 H14 105.771
O5 C4 H9 111.358 O5 C4 H13 105.771
O6 C1 H7 111.358 O6 C1 H12 105.771
O6 C2 H8 111.358 O6 C2 H11 105.771
H7 C1 H12 108.825 H8 C2 H11 108.825
H9 C4 H13 108.825 H10 C3 H14 108.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.061      
2 C -0.061      
3 C -0.061      
4 C -0.061      
5 O -0.169      
6 O -0.169      
7 H 0.067      
8 H 0.067      
9 H 0.067      
10 H 0.067      
11 H 0.078      
12 H 0.078      
13 H 0.078      
14 H 0.078      


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 -33.588 -1.400 0.000
y -1.400 -38.525 0.000
z 0.000 0.000 -29.983
Traceless
 xyz
x 0.666 -1.400 0.000
y -1.400 -6.740 0.000
z 0.000 0.000 6.074
Polar
3z2-r212.148
x2-y24.937
xy-1.400
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.450 0.049 0.000
y 0.049 3.857 0.000
z 0.000 0.000 5.624


<r2> (average value of r2) Å2
<r2> 148.367
(<r2>)1/2 12.181