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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-308.859392
Energy at 298.15K-308.871062
Nuclear repulsion energy253.747355
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 mPW1PW91/6-311G**
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 3145 3009 0.00      
2 Ag 2999 2869 0.00      
3 Ag 2988 2859 0.00      
4 Ag 1533 1467 0.00      
5 Ag 1509 1443 0.00      
6 Ag 1490 1426 0.00      
7 Ag 1455 1392 0.00      
8 Ag 1254 1199 0.00      
9 Ag 1198 1146 0.00      
10 Ag 1099 1052 0.00      
11 Ag 1042 997 0.00      
12 Ag 402 385 0.00      
13 Ag 330 316 0.00      
14 Au 3048 2916 35.07      
15 Au 3042 2910 216.65      
16 Au 1487 1423 16.33      
17 Au 1244 1190 12.95      
18 Au 1182 1130 2.99      
19 Au 844 808 0.37      
20 Au 241 230 8.51      
21 Au 101 97 7.98      
22 Au 69 66 3.56      
23 Bg 3043 2911 0.00      
24 Bg 3019 2889 0.00      
25 Bg 1487 1423 0.00      
26 Bg 1301 1244 0.00      
27 Bg 1198 1146 0.00      
28 Bg 1158 1108 0.00      
29 Bg 225 216 0.00      
30 Bg 126 120 0.00      
31 Bu 3145 3009 61.43      
32 Bu 3002 2872 141.51      
33 Bu 2989 2860 90.19      
34 Bu 1540 1473 4.33      
35 Bu 1508 1443 26.66      
36 Bu 1481 1417 1.53      
37 Bu 1370 1311 21.21      
38 Bu 1237 1183 219.17      
39 Bu 1190 1138 181.05      
40 Bu 995 952 66.83      
41 Bu 504 482 3.66      
42 Bu 146 140 4.04      

Unscaled Zero Point Vibrational Energy (zpe) 31182.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 29832.6 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 mPW1PW91/6-311G**
ABC
0.63803 0.04338 0.04191

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.429 1.733 0.000
O2 -0.429 -1.733 0.000
C3 0.267 -2.950 0.000
C4 -0.267 2.950 0.000
C5 -0.429 0.622 0.000
C6 0.429 -0.622 0.000
H7 0.473 3.750 0.000
H8 -0.473 -3.750 0.000
H9 0.902 -3.054 0.891
H10 0.902 -3.054 -0.891
H11 -0.902 3.054 0.891
H12 -0.902 3.054 -0.891
H13 -1.078 0.621 0.888
H14 -1.078 0.621 -0.888
H15 1.078 -0.621 0.888
H16 1.078 -0.621 -0.888

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.57114.68641.40211.40382.35532.01705.55684.89244.89242.07592.07592.07232.07232.59872.5987
O23.57111.40214.68642.35531.40385.55682.01702.07592.07594.89244.89242.59872.59872.07232.0723
C34.68641.40215.92493.63962.33396.70341.08951.09891.09896.18176.18173.91853.91852.62092.6209
C41.40214.68645.92492.33393.63961.08956.70346.18176.18171.09891.09892.62092.62093.91853.9185
C51.40382.35533.63962.33391.51133.25524.37214.00984.00982.63292.63291.09951.09952.14582.1458
C62.35531.40382.33393.63961.51134.37213.25522.63292.63294.00984.00982.14582.14581.09951.0995
H72.01705.55686.70341.08953.25524.37217.55916.87536.87531.78011.78013.60283.60284.50124.5012
H85.55682.01701.08956.70344.37213.25527.55911.78011.78016.87536.87534.50124.50123.60283.6028
H94.89242.07591.09896.18174.00982.63296.87531.78011.78196.36896.61344.17474.53782.43903.0186
H104.89242.07591.09896.18174.00982.63296.87531.78011.78196.61346.36894.53784.17473.01862.4390
H112.07594.89246.18171.09892.63294.00981.78016.87536.36896.61341.78192.43903.01864.17474.5378
H122.07594.89246.18171.09892.63294.00981.78016.87536.61346.36891.78193.01862.43904.53784.1747
H132.07232.59873.91852.62091.09952.14583.60284.50124.17474.53782.43903.01861.77512.48833.0566
H142.07232.59873.91852.62091.09952.14583.60284.50124.53784.17473.01862.43901.77513.05662.4883
H152.59872.07232.62093.91852.14581.09954.50123.60282.43903.01864.17474.53782.48833.05661.7751
H162.59872.07232.62093.91852.14581.09954.50123.60283.01862.43904.53784.17473.05662.48831.7751

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 107.437 O1 C4 H11 111.634
O1 C4 H12 111.634 O1 C5 C6 107.740
O1 C5 H13 111.171 O1 C5 H14 111.171
O2 C3 H8 107.437 O2 C3 H9 111.634
O2 C3 H10 111.634 O2 C6 C5 107.740
O2 C6 H15 111.171 O2 C6 H16 111.171
C3 O2 C6 112.565 C4 O1 C5 112.565
C5 C6 H15 109.546 C5 C6 H16 109.546
C6 C5 H13 109.546 C6 C5 H14 109.546
H7 C4 H11 108.861 H7 C4 H12 108.861
H8 C3 H9 108.861 H8 C3 H10 108.861
H9 C3 H10 108.347 H11 C4 H12 108.347
H13 C5 H14 107.658 H15 C6 H16 107.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.369      
2 O -0.369      
3 C -0.135      
4 C -0.135      
5 C -0.041      
6 C -0.041      
7 H 0.125      
8 H 0.125      
9 H 0.100      
10 H 0.100      
11 H 0.100      
12 H 0.100      
13 H 0.110      
14 H 0.110      
15 H 0.110      
16 H 0.110      


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 -39.397 -4.073 0.000
y -4.073 -31.506 0.000
z 0.000 0.000 -38.084
Traceless
 xyz
x -4.602 -4.073 0.000
y -4.073 7.235 0.000
z 0.000 0.000 -2.632
Polar
3z2-r2-5.265
x2-y2-7.891
xy-4.073
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.273 -0.241 0.000
y -0.241 10.210 0.000
z 0.000 0.000 7.104


<r2> (average value of r2) Å2
<r2> 267.516
(<r2>)1/2 16.356