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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-308.738733
Energy at 298.15K-308.750369
Nuclear repulsion energy253.071027
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3148 3011 0.00      
2 Ag 2999 2869 0.00      
3 Ag 2987 2858 0.00      
4 Ag 1556 1488 0.00      
5 Ag 1530 1464 0.00      
6 Ag 1505 1440 0.00      
7 Ag 1463 1400 0.00      
8 Ag 1255 1201 0.00      
9 Ag 1197 1145 0.00      
10 Ag 1097 1049 0.00      
11 Ag 1042 997 0.00      
12 Ag 401 383 0.00      
13 Ag 332 317 0.00      
14 Au 3045 2914 7.63      
15 Au 3042 2910 254.01      
16 Au 1511 1445 12.15      
17 Au 1250 1196 12.52      
18 Au 1189 1137 2.28      
19 Au 844 807 0.26      
20 Au 244 234 8.66      
21 Au 102 98 7.67      
22 Au 70 67 3.16      
23 Bg 3043 2911 0.00      
24 Bg 3018 2887 0.00      
25 Bg 1511 1445 0.00      
26 Bg 1308 1251 0.00      
27 Bg 1207 1154 0.00      
28 Bg 1165 1115 0.00      
29 Bg 228 218 0.00      
30 Bg 126 120 0.00      
31 Bu 3148 3011 65.23      
32 Bu 3001 2871 145.47      
33 Bu 2988 2859 82.16      
34 Bu 1562 1495 2.19      
35 Bu 1531 1465 25.25      
36 Bu 1497 1433 5.21      
37 Bu 1374 1315 33.36      
38 Bu 1239 1186 214.40      
39 Bu 1193 1141 173.76      
40 Bu 995 952 62.62      
41 Bu 506 484 3.96      
42 Bu 143 137 3.99      

Unscaled Zero Point Vibrational Energy (zpe) 31295.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 29940.4 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 B3PW91/6-31G*
ABC
0.63332 0.04318 0.04170

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.341 1.187 0.000
O2 -1.341 -1.187 0.000
C3 -1.456 -2.587 0.000
C4 1.456 2.587 0.000
C5 0.000 0.759 0.000
C6 0.000 -0.759 0.000
H7 2.524 2.824 0.000
H8 -2.524 -2.824 0.000
H9 -0.991 -3.036 0.893
H10 -0.991 -3.036 -0.893
H11 0.991 3.036 0.893
H12 0.991 3.036 -0.893
H13 -0.538 1.129 0.889
H14 -0.538 1.129 -0.889
H15 0.538 -1.129 0.889
H16 0.538 -1.129 -0.889

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.58114.69731.40471.40722.36302.02015.56984.90594.90592.08292.08292.07892.07892.60752.6075
O23.58111.40474.69732.36301.40725.56982.02012.08292.08294.90594.90592.60752.60752.07892.0789
C34.69731.40475.93743.64912.33726.71731.09341.10241.10246.19726.19723.92983.92982.62532.6253
C41.40474.69735.93742.33723.64911.09346.71736.19726.19721.10241.10242.62532.62533.92983.9298
C51.40722.36303.64912.33721.51793.26114.38284.02264.02262.63902.63901.10301.10302.15512.1551
C62.36301.40722.33723.64911.51794.38283.26112.63902.63904.02264.02262.15512.15511.10301.1030
H72.02015.56986.71731.09343.26114.38287.57526.89166.89161.78631.78633.61063.61064.51274.5127
H85.56982.02011.09346.71734.38283.26117.57521.78631.78636.89166.89164.51274.51273.61063.6106
H94.90592.08291.10246.19724.02262.63906.89161.78631.78566.38746.63234.18984.55292.44413.0246
H104.90592.08291.10246.19724.02262.63906.89161.78631.78566.63236.38744.55294.18983.02462.4441
H112.08294.90596.19721.10242.63904.02261.78636.89166.38746.63231.78562.44413.02464.18984.5529
H122.08294.90596.19721.10242.63904.02261.78636.89166.63236.38741.78563.02462.44414.55294.1898
H132.07892.60753.92982.62531.10302.15513.61064.51274.18984.55292.44413.02461.77792.50143.0689
H142.07892.60753.92982.62531.10302.15513.61064.51274.55294.18983.02462.44411.77793.06892.5014
H152.60752.07892.62533.92982.15511.10304.51273.61062.44413.02464.18984.55292.50143.06891.7779
H162.60752.07892.62533.92982.15511.10304.51273.61063.02462.44414.55294.18983.06892.50141.7779

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 107.274 O1 C4 H11 111.791
O1 C4 H12 111.791 O1 C5 C6 107.708
O1 C5 H13 111.246 O1 C5 H14 111.246
O2 C3 H8 107.274 O2 C3 H9 111.791
O2 C3 H10 111.791 O2 C6 C5 107.708
O2 C6 H15 111.246 O2 C6 H16 111.246
C3 O2 C6 112.439 C4 O1 C5 112.439
C5 C6 H15 109.614 C5 C6 H16 109.614
C6 C5 H13 109.614 C6 C5 H14 109.614
H7 C4 H11 108.876 H7 C4 H12 108.876
H8 C3 H9 108.876 H8 C3 H10 108.876
H9 C3 H10 108.164 H11 C4 H12 108.164
H13 C5 H14 107.408 H15 C6 H16 107.408
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.466     -0.350
2 O -0.466     -0.347
3 C -0.251     -0.027
4 C -0.251     -0.036
5 C -0.072     0.115
6 C -0.072     0.085
7 H 0.181     0.089
8 H 0.181     0.087
9 H 0.151     0.050
10 H 0.151     0.050
11 H 0.151     0.052
12 H 0.151     0.052
13 H 0.154     0.042
14 H 0.154     0.042
15 H 0.154     0.048
16 H 0.154     0.048


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 -0.005 -0.010 0.000 0.011


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.202 2.171 0.000
y 2.171 -29.836 0.000
z 0.000 0.000 -37.864
Traceless
 xyz
x -6.352 2.171 0.000
y 2.171 9.197 0.000
z 0.000 0.000 -2.846
Polar
3z2-r2-5.691
x2-y2-10.366
xy2.171
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 268.527
(<r2>)1/2 16.387