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

using model chemistry: BLYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-308.748120
Energy at 298.15K-308.759597
Nuclear repulsion energy250.366485
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/6-31G(2df,p)
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 3034 3017 0.00      
2 Ag 2890 2874 0.00      
3 Ag 2875 2859 0.00      
4 Ag 1491 1482 0.00      
5 Ag 1464 1456 0.00      
6 Ag 1442 1434 0.00      
7 Ag 1395 1388 0.00      
8 Ag 1200 1193 0.00      
9 Ag 1101 1095 0.00      
10 Ag 1040 1034 0.00      
11 Ag 969 964 0.00      
12 Ag 382 380 0.00      
13 Ag 324 322 0.00      
14 Au 2924 2908 11.24      
15 Au 2920 2904 245.80      
16 Au 1444 1436 7.69      
17 Au 1194 1187 12.37      
18 Au 1143 1137 2.06      
19 Au 815 810 0.26      
20 Au 240 238 5.48      
21 Au 93 93 6.29      
22 Au 68 67 2.08      
23 Bg 2921 2905 0.00      
24 Bg 2896 2880 0.00      
25 Bg 1444 1436 0.00      
26 Bg 1252 1245 0.00      
27 Bg 1162 1156 0.00      
28 Bg 1121 1115 0.00      
29 Bg 229 228 0.00      
30 Bg 123 122 0.00      
31 Bu 3034 3017 64.16      
32 Bu 2891 2875 155.28      
33 Bu 2878 2862 80.47      
34 Bu 1498 1490 0.74      
35 Bu 1467 1459 20.26      
36 Bu 1439 1431 5.85      
37 Bu 1327 1319 37.04      
38 Bu 1177 1170 53.16      
39 Bu 1106 1100 315.24      
40 Bu 917 912 50.61      
41 Bu 491 489 3.10      
42 Bu 142 141 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 29979.2 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 29814.4 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 BLYP/6-31G(2df,p)
ABC
0.62057 0.04223 0.04078

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.437 1.756 0.000
O2 -0.437 -1.756 0.000
C3 0.269 -2.991 0.000
C4 -0.269 2.991 0.000
C5 -0.437 0.630 0.000
C6 0.437 -0.630 0.000
H7 0.482 3.794 0.000
H8 -0.482 -3.794 0.000
H9 0.912 -3.100 0.898
H10 0.912 -3.100 -0.898
H11 -0.912 3.100 0.898
H12 -0.912 3.100 -0.898
H13 -1.094 0.631 0.894
H14 -1.094 0.631 -0.894
H15 1.094 -0.631 0.894
H16 1.094 -0.631 -0.894

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.61914.75041.42291.42542.38572.03845.62574.96164.96162.10552.10552.10002.10002.63212.6321
O23.61911.42294.75042.38571.42545.62572.03842.10552.10554.96164.96162.63212.63212.10002.1000
C34.75041.42296.00703.68932.36776.78871.09971.10951.10956.27006.27003.97213.97212.65582.6558
C41.42294.75046.00702.36773.68931.09976.78876.27006.27001.10951.10952.65582.65583.97213.9721
C51.42542.38573.68932.36771.53273.29514.42394.06694.06692.67142.67141.10991.10992.17532.1753
C62.38571.42542.36773.68931.53274.42393.29512.67142.67144.06694.06692.17532.17531.10991.1099
H72.03845.62576.78871.09973.29514.42397.64916.96596.96591.79781.79783.64583.64584.55544.5554
H85.62572.03841.09976.78874.42393.29517.64911.79781.79786.96596.96594.55544.55543.64583.6458
H94.96162.10551.10956.27004.06692.67146.96591.79781.79526.46376.70844.23634.59972.47653.0568
H104.96162.10551.10956.27004.06692.67146.96591.79781.79526.70846.46374.59974.23633.05682.4765
H112.10554.96166.27001.10952.67144.06691.79786.96596.46376.70841.79522.47653.05684.23634.5997
H122.10554.96166.27001.10952.67144.06691.79786.96596.70846.46371.79523.05682.47654.59974.2363
H132.10002.63213.97212.65581.10992.17533.64584.55544.23634.59972.47653.05681.78872.52563.0949
H142.10002.63213.97212.65581.10992.17533.64584.55544.59974.23633.05682.47651.78873.09492.5256
H152.63212.10002.65583.97212.17531.10994.55543.64582.47653.05684.23634.59972.52563.09491.7887
H162.63212.10002.65583.97212.17531.10994.55543.64583.05682.47654.59974.23633.09492.52561.7887

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 107.118 O1 C4 H11 111.893
O1 C4 H12 111.893 O1 C5 C6 107.456
O1 C5 H13 111.239 O1 C5 H14 111.239
O2 C3 H8 107.118 O2 C3 H9 111.893
O2 C3 H10 111.893 O2 C6 C5 107.456
O2 C6 H15 111.239 O2 C6 H16 111.239
C3 O2 C6 112.451 C4 O1 C5 112.451
C5 C6 H15 109.769 C5 C6 H16 109.769
C6 C5 H13 109.769 C6 C5 H14 109.769
H7 C4 H11 108.931 H7 C4 H12 108.931
H8 C3 H9 108.931 H8 C3 H10 108.931
H9 C3 H10 108.006 H11 C4 H12 108.006
H13 C5 H14 107.375 H15 C6 H16 107.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.179      
2 O -0.179      
3 C -0.210      
4 C -0.210      
5 C -0.066      
6 C -0.066      
7 H 0.111      
8 H 0.111      
9 H 0.092      
10 H 0.092      
11 H 0.092      
12 H 0.092      
13 H 0.080      
14 H 0.080      
15 H 0.080      
16 H 0.080      


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 -39.219 -3.438 0.000
y -3.438 -32.490 0.000
z 0.000 0.000 -38.084
Traceless
 xyz
x -3.932 -3.438 0.000
y -3.438 6.161 0.000
z 0.000 0.000 -2.230
Polar
3z2-r2-4.460
x2-y2-6.729
xy-3.438
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.300 -0.226 0.000
y -0.226 10.930 0.000
z 0.000 0.000 7.185


<r2> (average value of r2) Å2
<r2> 274.386
(<r2>)1/2 16.565