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All results from a given calculation for C4H10O2 (Ethane, 1,2-dimethoxy-)

using model chemistry: HF/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 HF/STO-3G
 hartrees
Energy at 0K-303.127804
Energy at 298.15K-303.139519
Nuclear repulsion energy250.043185
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 HF/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 3717 3035 0.00      
2 Ag 3550 2899 0.00      
3 Ag 3517 2872 0.00      
4 Ag 1830 1494 0.00      
5 Ag 1825 1490 0.00      
6 Ag 1766 1442 0.00      
7 Ag 1729 1412 0.00      
8 Ag 1456 1188 0.00      
9 Ag 1387 1132 0.00      
10 Ag 1237 1010 0.00      
11 Ag 1197 977 0.00      
12 Ag 423 345 0.00      
13 Ag 400 327 0.00      
14 Au 3682 3006 14.06      
15 Au 3671 2997 17.18      
16 Au 1807 1475 5.58      
17 Au 1406 1148 20.07      
18 Au 1314 1073 8.37      
19 Au 945 771 0.52      
20 Au 255 209 6.35      
21 Au 99 81 11.15      
22 Au 70 57 0.07      
23 Bg 3682 3006 0.00      
24 Bg 3658 2987 0.00      
25 Bg 1807 1475 0.00      
26 Bg 1517 1238 0.00      
27 Bg 1322 1079 0.00      
28 Bg 1286 1050 0.00      
29 Bg 244 199 0.00      
30 Bg 144 118 0.00      
31 Bu 3717 3035 2.53      
32 Bu 3552 2900 11.39      
33 Bu 3517 2872 15.27      
34 Bu 1841 1504 2.91      
35 Bu 1825 1490 8.95      
36 Bu 1759 1436 29.37      
37 Bu 1586 1295 92.98      
38 Bu 1445 1180 32.91      
39 Bu 1369 1118 1.36      
40 Bu 1148 937 6.97      
41 Bu 595 486 1.78      
42 Bu 162 132 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 36727.8 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 29988.3 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 HF/STO-3G
ABC
0.60635 0.04220 0.04066

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.439 1.774 0.000
O2 -0.439 -1.774 0.000
C3 0.334 -2.980 0.000
C4 -0.334 2.980 0.000
C5 -0.439 0.638 0.000
C6 0.439 -0.638 0.000
H7 0.366 3.817 0.000
H8 -0.366 -3.817 0.000
H9 0.971 -3.060 0.887
H10 0.971 -3.060 -0.887
H11 -0.971 3.060 0.887
H12 -0.971 3.060 -0.887
H13 -1.087 0.633 0.885
H14 -1.087 0.633 -0.885
H15 1.087 -0.633 0.885
H16 1.087 -0.633 -0.885

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.65464.75511.43301.43572.41182.04495.64884.94294.94292.10472.10472.10072.10072.64492.6449
O23.65461.43304.75512.41181.43575.64882.04492.10472.10474.94294.94292.64492.64492.10072.1007
C34.75511.43305.99773.69992.34446.79761.09151.09491.09496.24276.24273.98233.98232.61872.6187
C41.43304.75515.99772.34443.69991.09156.79766.24276.24271.09491.09492.61872.61873.98233.9823
C51.43572.41183.69992.34441.54923.27974.45614.05594.05592.63332.63331.09651.09652.17442.1744
C62.41181.43572.34443.69991.54924.45613.27972.63332.63334.05594.05592.17442.17441.09651.0965
H72.04495.64886.79761.09153.27974.45617.66986.96056.96051.77471.77473.61023.61024.59464.5946
H85.64882.04491.09156.79764.45613.27977.66981.77471.77476.96056.96054.59464.59463.61023.6102
H94.94292.10471.09496.24274.05592.63336.96051.77471.77346.42066.66104.22794.58402.42943.0066
H104.94292.10471.09496.24274.05592.63336.96051.77471.77346.66106.42064.58404.22793.00662.4294
H112.10474.94296.24271.09492.63334.05591.77476.96056.42066.66101.77342.42943.00664.22794.5840
H122.10474.94296.24271.09492.63334.05591.77476.96056.66106.42061.77343.00662.42944.58404.2279
H132.10072.64493.98232.61871.09652.17443.61024.59464.22794.58402.42943.00661.76932.51603.0759
H142.10072.64493.98232.61871.09652.17443.61024.59464.58404.22793.00662.42941.76933.07592.5160
H152.64492.10072.61873.98232.17441.09654.59463.61022.42943.00664.22794.58402.51603.07591.7693
H162.64492.10072.61873.98232.17441.09654.59463.61023.00662.42944.58404.22793.07592.51601.7693

picture of Ethane, 1,2-dimethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C4 H7 107.430 O1 C4 H11 112.046
O1 C4 H12 112.046 O1 C5 C6 107.740
O1 C5 H13 111.406 O1 C5 H14 111.406
O2 C3 H8 107.430 O2 C3 H9 112.046
O2 C3 H10 112.046 O2 C6 C5 107.740
O2 C6 H15 111.406 O2 C6 H16 111.406
C3 O2 C6 109.622 C4 O1 C5 109.622
C5 C6 H15 109.350 C5 C6 H16 109.350
C6 C5 H13 109.350 C6 C5 H14 109.350
H7 C4 H11 108.523 H7 C4 H12 108.523
H8 C3 H9 108.523 H8 C3 H10 108.523
H9 C3 H10 108.164 H11 C4 H12 108.164
H13 C5 H14 107.567 H15 C6 H16 107.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.244      
2 O -0.244      
3 C -0.065      
4 C -0.065      
5 C 0.009      
6 C 0.009      
7 H 0.071      
8 H 0.071      
9 H 0.057      
10 H 0.057      
11 H 0.057      
12 H 0.057      
13 H 0.057      
14 H 0.057      
15 H 0.057      
16 H 0.057      


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 -36.443 -4.498 0.000
y -4.498 -31.712 0.000
z 0.000 0.000 -35.416
Traceless
 xyz
x -2.879 -4.498 0.000
y -4.498 4.218 0.000
z 0.000 0.000 -1.339
Polar
3z2-r2-2.677
x2-y2-4.731
xy-4.498
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.341 -0.051 0.000
y -0.051 5.803 0.000
z 0.000 0.000 3.170


<r2> (average value of r2) Å2
<r2> 273.346
(<r2>)1/2 16.533