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

using model chemistry: mPW1PW91/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-308.818514
Energy at 298.15K-308.830134
Nuclear repulsion energy253.052404
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/aug-cc-pVDZ
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 3156 3025 0.00      
2 Ag 3007 2882 0.00      
3 Ag 2997 2872 0.00      
4 Ag 1505 1442 0.00      
5 Ag 1482 1420 0.00      
6 Ag 1466 1405 0.00      
7 Ag 1431 1372 0.00      
8 Ag 1240 1189 0.00      
9 Ag 1192 1142 0.00      
10 Ag 1095 1049 0.00      
11 Ag 1038 995 0.00      
12 Ag 400 383 0.00      
13 Ag 334 320 0.00      
14 Au 3064 2936 11.38      
15 Au 3058 2930 197.49      
16 Au 1466 1405 16.22      
17 Au 1229 1177 11.42      
18 Au 1166 1118 2.97      
19 Au 831 797 0.09      
20 Au 231 221 7.35      
21 Au 92 88 6.81      
22 Au 70 67 3.52      
23 Bg 3059 2932 0.00      
24 Bg 3037 2910 0.00      
25 Bg 1466 1405 0.00      
26 Bg 1288 1234 0.00      
27 Bg 1182 1133 0.00      
28 Bg 1143 1095 0.00      
29 Bg 216 207 0.00      
30 Bg 126 120 0.00      
31 Bu 3156 3025 52.87      
32 Bu 3011 2885 130.08      
33 Bu 2997 2872 106.09      
34 Bu 1511 1448 6.41      
35 Bu 1479 1418 20.88      
36 Bu 1454 1393 0.54      
37 Bu 1346 1290 20.83      
38 Bu 1225 1174 241.67      
39 Bu 1180 1130 150.59      
40 Bu 989 947 60.64      
41 Bu 507 485 3.38      
42 Bu 148 142 3.61      

Unscaled Zero Point Vibrational Energy (zpe) 31032.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 29738.8 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/aug-cc-pVDZ
ABC
0.63309 0.04318 0.04171

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.430 1.739 0.000
O2 -0.430 -1.739 0.000
C3 0.273 -2.957 0.000
C4 -0.273 2.957 0.000
C5 -0.430 0.623 0.000
C6 0.430 -0.623 0.000
H7 0.469 3.762 0.000
H8 -0.469 -3.762 0.000
H9 0.910 -3.054 0.896
H10 0.910 -3.054 -0.896
H11 -0.910 3.054 0.896
H12 -0.910 3.054 -0.896
H13 -1.080 0.629 0.892
H14 -1.080 0.629 -0.892
H15 1.080 -0.629 0.892
H16 1.080 -0.629 -0.892

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.58214.69801.40591.40832.36172.02345.57344.89964.89962.08012.08012.07532.07532.61232.6123
O23.58211.40594.69802.36171.40835.57342.02342.08012.08014.89964.89962.61232.61232.07532.0753
C34.69801.40595.93843.64782.33896.72121.09461.10331.10336.19136.19133.93463.93462.62032.6203
C41.40594.69805.93842.33893.64781.09466.72126.19136.19131.10331.10332.62032.62033.93463.9346
C51.40832.36173.64782.33891.51343.26494.38494.01484.01482.63522.63521.10391.10392.15452.1545
C62.36171.40832.33893.64781.51344.38493.26492.63522.63524.01484.01482.15452.15451.10391.1039
H72.02345.57346.72121.09463.26494.38497.58176.88886.88881.78971.78973.60693.60694.52184.5218
H85.57342.02341.09466.72124.38493.26497.58171.78971.78976.88886.88884.52184.52183.60693.6069
H94.89962.08011.10336.19134.01482.63526.88881.78971.79106.37406.62084.18644.55202.43153.0177
H104.89962.08011.10336.19134.01482.63526.88881.78971.79106.62086.37404.55204.18643.01772.4315
H112.08014.89966.19131.10332.63524.01481.78976.88886.37406.62081.79102.43153.01774.18644.5520
H122.08014.89966.19131.10332.63524.01481.78976.88886.62086.37401.79103.01772.43154.55204.1864
H132.07532.61233.93462.62031.10392.15453.60694.52184.18644.55202.43153.01771.78362.49983.0709
H142.07532.61233.93462.62031.10392.15453.60694.52184.55204.18643.01772.43151.78363.07092.4998
H152.61232.07532.62033.93462.15451.10394.52183.60692.43153.01774.18644.55202.49983.07091.7836
H162.61232.07532.62033.93462.15451.10394.52183.60693.01772.43154.55204.18643.07092.49981.7836

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 107.379 O1 C4 H11 111.419
O1 C4 H12 111.419 O1 C5 C6 107.813
O1 C5 H13 110.815 O1 C5 H14 110.815
O2 C3 H8 107.379 O2 C3 H9 111.419
O2 C3 H10 111.419 O2 C6 C5 107.813
O2 C6 H15 110.815 O2 C6 H16 110.815
C3 O2 C6 112.429 C4 O1 C5 112.429
C5 C6 H15 109.814 C5 C6 H16 109.814
C6 C5 H13 109.814 C6 C5 H14 109.814
H7 C4 H11 109.028 H7 C4 H12 109.028
H8 C3 H9 109.028 H8 C3 H10 109.028
H9 C3 H10 108.515 H11 C4 H12 108.515
H13 C5 H14 107.774 H15 C6 H16 107.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.559      
2 O -0.559      
3 C 0.710      
4 C 0.710      
5 C 0.819      
6 C 0.819      
7 H -0.315      
8 H -0.315      
9 H -0.081      
10 H -0.081      
11 H -0.081      
12 H -0.081      
13 H -0.247      
14 H -0.247      
15 H -0.247      
16 H -0.247      


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 -39.954 -3.999 0.000
y -3.999 -32.575 0.000
z 0.000 0.000 -38.285
Traceless
 xyz
x -4.524 -3.999 0.000
y -3.999 6.545 0.000
z 0.000 0.000 -2.021
Polar
3z2-r2-4.041
x2-y2-7.380
xy-3.999
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.544 -0.318 0.000
y -0.318 11.724 0.000
z 0.000 0.000 8.143


<r2> (average value of r2) Å2
<r2> 269.067
(<r2>)1/2 16.403