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

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-307.410650
Energy at 298.15K-307.421677
HF Energy-307.410650
Nuclear repulsion energy263.227520
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/Def2TZVPP
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 3019 2982 0.00      
2 Ag 2898 2863 0.00      
3 Ag 1431 1413 0.00      
4 Ag 1361 1344 0.00      
5 Ag 1284 1268 0.00      
6 Ag 1102 1089 0.00      
7 Ag 995 983 0.00      
8 Ag 826 816 0.00      
9 Ag 424 419 0.00      
10 Ag 403 398 0.00      
11 Au 3018 2981 86.61      
12 Au 2891 2856 54.40      
13 Au 1420 1403 1.81      
14 Au 1333 1317 12.78      
15 Au 1236 1222 33.06      
16 Au 1100 1086 167.53      
17 Au 1065 1052 7.19      
18 Au 870 860 17.42      
19 Au 245 242 0.74      
20 Bg 3018 2981 0.00      
21 Bg 2905 2870 0.00      
22 Bg 1420 1403 0.00      
23 Bg 1306 1291 0.00      
24 Bg 1193 1179 0.00      
25 Bg 1090 1077 0.00      
26 Bg 832 821 0.00      
27 Bg 474 468 0.00      
28 Bu 3018 2981 40.32      
29 Bu 2908 2873 169.38      
30 Bu 1425 1408 15.32      
31 Bu 1352 1336 1.77      
32 Bu 1270 1255 9.09      
33 Bu 1032 1019 8.37      
34 Bu 863 852 64.63      
35 Bu 586 578 11.81      
36 Bu 256 253 15.03      

Unscaled Zero Point Vibrational Energy (zpe) 25933.2 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 25619.4 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/Def2TZVPP
ABC
0.16865 0.15497 0.09080

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.761 1.173
C2 0.000 0.761 -1.173
C3 0.000 -0.761 1.173
C4 0.000 -0.761 -1.173
O5 -0.642 -1.267 0.000
O6 0.642 1.267 0.000
H7 -1.043 1.130 1.218
H8 -1.043 1.130 -1.218
H9 1.043 -1.130 -1.218
H10 1.043 -1.130 1.218
H11 0.555 1.159 -2.035
H12 0.555 1.159 2.035
H13 -0.555 -1.159 -2.035
H14 -0.555 -1.159 2.035

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 O6 H7 H8 H9 H10 H11 H12 H13 H14
C12.34621.52292.79712.42961.42981.10732.63453.22202.16033.27991.09943.78002.1770
C22.34622.79711.52292.42961.42982.63451.10732.16033.22201.09943.27992.17703.7800
C31.52292.79712.34621.42982.42962.16033.22202.63451.10733.78002.17703.27991.0994
C42.79711.52292.34621.42982.42963.22202.16031.10732.63452.17703.78001.09943.2799
O52.42962.42961.42981.42982.84092.71792.71792.08422.08423.38523.38522.03972.0397
O61.42981.42982.42962.42962.84092.08422.08422.71792.71792.03972.03973.38523.3852
H71.10732.63452.16033.22202.71792.08422.43573.92323.07553.62431.79504.00732.4790
H82.63451.10733.22202.16032.71792.08422.43573.07553.92321.79503.62432.47904.0073
H93.22202.16032.63451.10732.08422.71793.92323.07552.43572.47904.00731.79503.6243
H102.16033.22201.10732.63452.08422.71793.07553.92322.43574.00732.47903.62431.7950
H113.27991.09943.78002.17703.38522.03973.62431.79502.47904.00734.07002.57014.8135
H121.09943.27992.17703.78003.38522.03971.79503.62434.00732.47904.07004.81352.5701
H133.78002.17703.27991.09942.03973.38524.00732.47901.79503.62432.57014.81354.0700
H142.17703.78001.09943.27992.03973.38522.47904.00733.62431.79504.81352.57014.0700

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 110.701 C1 C3 H10 109.419
C1 C3 H14 111.211 C1 O6 C2 110.261
C2 C4 O5 110.701 C2 C4 H9 109.419
C2 C4 H13 111.211 C3 C1 O6 110.701
C3 C1 H7 109.419 C3 C1 H12 111.211
C3 O5 C4 110.261 C4 C2 O6 110.701
C4 C2 H8 109.419 C4 C2 H11 111.211
O5 C3 H10 109.818 O5 C3 H14 106.779
O5 C4 H9 109.818 O5 C4 H13 106.779
O6 C1 H7 109.818 O6 C1 H12 106.779
O6 C2 H8 109.818 O6 C2 H11 106.779
H7 C1 H12 108.862 H8 C2 H11 108.862
H9 C4 H13 108.862 H10 C3 H14 108.862
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.005      
2 C 0.005      
3 C 0.005      
4 C 0.005      
5 O -0.266      
6 O -0.266      
7 H 0.051      
8 H 0.051      
9 H 0.051      
10 H 0.051      
11 H 0.077      
12 H 0.077      
13 H 0.077      
14 H 0.077      


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 -38.817 -2.931 0.000
y -2.931 -41.048 0.000
z 0.000 0.000 -31.526
Traceless
 xyz
x -2.530 -2.931 0.000
y -2.931 -5.877 0.000
z 0.000 0.000 8.406
Polar
3z2-r216.813
x2-y22.231
xy-2.931
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.718 -0.168 0.000
y -0.168 8.202 0.000
z 0.000 0.000 9.793


<r2> (average value of r2) Å2
<r2> 140.913
(<r2>)1/2 11.871