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

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-308.676217
Energy at 298.15K-308.687787
Nuclear repulsion energy249.973787
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 mPW1PW91/6-31G
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 3196 3026 0.00      
2 Ag 3043 2880 0.00      
3 Ag 3030 2868 0.00      
4 Ag 1574 1490 0.00      
5 Ag 1551 1468 0.00      
6 Ag 1514 1433 0.00      
7 Ag 1464 1385 0.00      
8 Ag 1237 1171 0.00      
9 Ag 1160 1098 0.00      
10 Ag 1101 1042 0.00      
11 Ag 988 936 0.00      
12 Ag 393 372 0.00      
13 Ag 323 305 0.00      
14 Au 3109 2943 90.54      
15 Au 3098 2932 144.96      
16 Au 1536 1454 19.89      
17 Au 1240 1173 12.12      
18 Au 1177 1114 1.06      
19 Au 866 819 0.01      
20 Au 231 219 12.44      
21 Au 106 100 13.86      
22 Au 68 65 5.93      
23 Bg 3098 2932 0.00      
24 Bg 3080 2916 0.00      
25 Bg 1536 1454 0.00      
26 Bg 1326 1255 0.00      
27 Bg 1194 1130 0.00      
28 Bg 1158 1096 0.00      
29 Bg 218 206 0.00      
30 Bg 122 115 0.00      
31 Bu 3196 3026 48.29      
32 Bu 3047 2884 88.22      
33 Bu 3029 2868 101.07      
34 Bu 1582 1497 4.35      
35 Bu 1552 1470 25.08      
36 Bu 1509 1428 1.25      
37 Bu 1392 1317 13.86      
38 Bu 1217 1152 67.84      
39 Bu 1149 1087 236.39      
40 Bu 927 878 44.92      
41 Bu 495 469 6.23      
42 Bu 143 136 6.82      

Unscaled Zero Point Vibrational Energy (zpe) 31485.8 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 29804.5 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 mPW1PW91/6-31G
ABC
0.62634 0.04196 0.04054

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.441 1.753 0.000
O2 -0.441 -1.753 0.000
C3 0.249 -3.014 0.000
C4 -0.249 3.014 0.000
C5 -0.441 0.614 0.000
C6 0.441 -0.614 0.000
H7 0.521 3.784 0.000
H8 -0.521 -3.784 0.000
H9 0.878 -3.126 0.893
H10 0.878 -3.126 -0.893
H11 -0.878 3.126 0.893
H12 -0.878 3.126 -0.893
H13 -1.085 0.615 0.889
H14 -1.085 0.615 -0.889
H15 1.085 -0.615 0.889
H16 1.085 -0.615 -0.889

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.61454.77031.43731.43992.36692.03315.61974.97924.97922.10282.10282.10052.10052.60992.6099
O23.61451.43734.77032.36691.43995.61972.03312.10282.10284.97924.97922.60992.60992.10052.1005
C34.77031.43736.04813.69292.40736.80341.08891.09771.09776.30616.30613.96713.96712.69132.6913
C41.43734.77036.04812.40733.69291.08896.80346.30616.30611.09771.09772.69132.69133.96713.9671
C51.43992.36693.69292.40731.51203.31264.39914.06534.06532.70152.70151.09791.09792.15152.1515
C62.36691.43992.40733.69291.51204.39913.31262.70152.70154.06534.06532.15152.15151.09791.0979
H72.03315.61976.80341.08893.31264.39917.63976.97706.97701.78471.78473.66223.66224.52354.5235
H85.61972.03311.08896.80344.39913.31267.63971.78471.78476.97706.97704.52354.52353.66223.6622
H94.97922.10281.09776.30614.06532.70156.97701.78471.78536.49436.73524.22484.58522.51983.0861
H104.97922.10281.09776.30614.06532.70156.97701.78471.78536.73526.49434.58524.22483.08612.5198
H112.10284.97926.30611.09772.70154.06531.78476.97706.49436.73521.78532.51983.08614.22484.5852
H122.10284.97926.30611.09772.70154.06531.78476.97706.73526.49431.78533.08612.51984.58524.2248
H132.10052.60993.96712.69131.09792.15153.66224.52354.22484.58522.51983.08611.77832.49403.0631
H142.10052.60993.96712.69131.09792.15153.66224.52354.58524.22483.08612.51981.77833.06312.4940
H152.60992.10052.69133.96712.15151.09794.52353.66222.51983.08614.22484.58522.49403.06311.7783
H162.60992.10052.69133.96712.15151.09794.52353.66223.08612.51984.58524.22483.06312.49401.7783

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 106.358 O1 C4 H11 111.394
O1 C4 H12 111.394 O1 C5 C6 106.585
O1 C5 H13 111.008 O1 C5 H14 111.008
O2 C3 H8 106.358 O2 C3 H9 111.394
O2 C3 H10 111.394 O2 C6 C5 106.585
O2 C6 H15 111.008 O2 C6 H16 111.008
C3 O2 C6 113.578 C4 O1 C5 113.578
C5 C6 H15 110.038 C5 C6 H16 110.038
C6 C5 H13 110.038 C6 C5 H14 110.038
H7 C4 H11 109.413 H7 C4 H12 109.413
H8 C3 H9 109.413 H8 C3 H10 109.413
H9 C3 H10 108.820 H11 C4 H12 108.820
H13 C5 H14 108.169 H15 C6 H16 108.169
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.551      
2 O -0.551      
3 C -0.220      
4 C -0.220      
5 C -0.058      
6 C -0.058      
7 H 0.187      
8 H 0.187      
9 H 0.155      
10 H 0.155      
11 H 0.155      
12 H 0.155      
13 H 0.167      
14 H 0.167      
15 H 0.167      
16 H 0.167      


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 -39.412 -5.592 0.000
y -5.592 -29.465 0.000
z 0.000 0.000 -38.019
Traceless
 xyz
x -5.670 -5.592 0.000
y -5.592 9.251 0.000
z 0.000 0.000 -3.581
Polar
3z2-r2-7.162
x2-y2-9.947
xy-5.592
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.607 -0.082 0.000
y -0.082 9.604 0.000
z 0.000 0.000 6.431


<r2> (average value of r2) Å2
<r2> 275.039
(<r2>)1/2 16.584