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

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-307.015991
Energy at 298.15K-307.027942
Nuclear repulsion energy255.007103
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 HF/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 3257 2949 0.00      
2 Ag 3143 2846 0.00      
3 Ag 3127 2832 0.00      
4 Ag 1654 1498 0.00      
5 Ag 1632 1478 0.00      
6 Ag 1622 1469 0.00      
7 Ag 1583 1434 0.00      
8 Ag 1369 1240 0.00      
9 Ag 1290 1168 0.00      
10 Ag 1162 1052 0.00      
11 Ag 1118 1013 0.00      
12 Ag 425 385 0.00      
13 Ag 356 322 0.00      
14 Au 3189 2887 183.25      
15 Au 3180 2880 89.91      
16 Au 1616 1463 8.80      
17 Au 1353 1225 18.36      
18 Au 1285 1164 5.61      
19 Au 892 808 0.89      
20 Au 248 225 11.12      
21 Au 119 108 5.91      
22 Au 74 67 4.49      
23 Bg 3180 2880 0.00      
24 Bg 3159 2860 0.00      
25 Bg 1616 1463 0.00      
26 Bg 1410 1277 0.00      
27 Bg 1303 1180 0.00      
28 Bg 1259 1140 0.00      
29 Bg 227 206 0.00      
30 Bg 127 115 0.00      
31 Bu 3257 2949 95.08      
32 Bu 3143 2846 140.02      
33 Bu 3127 2832 73.81      
34 Bu 1662 1505 3.11      
35 Bu 1629 1475 17.80      
36 Bu 1610 1458 7.74      
37 Bu 1491 1350 54.09      
38 Bu 1353 1225 267.37      
39 Bu 1281 1160 252.55      
40 Bu 1064 963 65.63      
41 Bu 541 490 4.87      
42 Bu 158 143 3.83      

Unscaled Zero Point Vibrational Energy (zpe) 33144.8 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 30012.6 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 HF/6-31G(2df,p)
ABC
0.66000 0.04347 0.04206

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.323 1.184 0.000
O2 -1.323 -1.184 0.000
C3 -1.480 -2.564 0.000
C4 1.480 2.564 0.000
C5 0.000 0.757 0.000
C6 0.000 -0.757 0.000
H7 2.542 2.777 0.000
H8 -2.542 -2.777 0.000
H9 -1.031 -3.018 0.883
H10 -1.031 -3.018 -0.883
H11 1.031 3.018 0.883
H12 1.031 3.018 -0.883
H13 -0.530 1.122 0.879
H14 -0.530 1.122 -0.879
H15 0.530 -1.122 0.879
H16 0.530 -1.122 -0.879

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.55164.68081.38871.39042.34952.00515.53424.89764.89762.05632.05632.05252.05252.59282.5928
O23.55161.38874.68082.34951.39045.53422.00512.05632.05634.89764.89762.59282.59282.05252.0525
C34.68081.38875.92133.63612.33586.68581.08281.08991.08996.18476.18473.90713.90712.62572.6257
C41.38874.68085.92132.33583.63611.08286.68586.18476.18471.08991.08992.62572.62573.90713.9071
C51.39042.34953.63612.33581.51423.24644.35304.01224.01222.63762.63761.09001.09002.14172.1417
C62.34951.39042.33583.63611.51424.35303.24642.63762.63764.01224.01222.14172.14171.09001.0900
H72.00515.53426.68581.08283.24644.35307.52886.86516.86511.76631.76633.59843.59844.47464.4746
H85.53422.00511.08286.68584.35303.24647.52881.76631.76636.86516.86514.47464.47463.59843.5984
H94.89762.05631.08996.18474.01222.63766.86511.76631.76696.37926.61934.17074.52802.45633.0235
H104.89762.05631.08996.18474.01222.63766.86511.76631.76696.61936.37924.52804.17073.02352.4563
H112.05634.89766.18471.08992.63764.01221.76636.86516.37926.61931.76692.45633.02354.17074.5280
H122.05634.89766.18471.08992.63764.01221.76636.86516.61936.37921.76693.02352.45634.52804.1707
H132.05252.59283.90712.62571.09002.14173.59844.47464.17074.52802.45633.02351.75892.48263.0426
H142.05252.59283.90712.62571.09002.14173.59844.47464.52804.17073.02352.45631.75893.04262.4826
H152.59282.05252.62573.90712.14171.09004.47463.59842.45633.02354.17074.52802.48263.04261.7589
H162.59282.05252.62573.90712.14171.09004.47463.59843.02352.45634.52804.17073.04262.48261.7589

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 107.809 O1 C4 H11 111.556
O1 C4 H12 111.556 O1 C5 C6 107.902
O1 C5 H13 111.105 O1 C5 H14 111.105
O2 C3 H8 107.809 O2 C3 H9 111.556
O2 C3 H10 111.556 O2 C6 C5 107.902
O2 C6 H15 111.105 O2 C6 H16 111.105
C3 O2 C6 114.386 C4 O1 C5 114.386
C5 C6 H15 109.573 C5 C6 H16 109.573
C6 C5 H13 109.573 C6 C5 H14 109.573
H7 C4 H11 108.773 H7 C4 H12 108.773
H8 C3 H9 108.773 H8 C3 H10 108.773
H9 C3 H10 108.305 H11 C4 H12 108.305
H13 C5 H14 107.574 H15 C6 H16 107.574
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.445      
2 O -0.445      
3 C -0.173      
4 C -0.173      
5 C 0.002      
6 C 0.002      
7 H 0.147      
8 H 0.147      
9 H 0.119      
10 H 0.119      
11 H 0.119      
12 H 0.119      
13 H 0.116      
14 H 0.116      
15 H 0.116      
16 H 0.116      


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 -40.481 1.987 0.000
y 1.987 -30.221 0.000
z 0.000 0.000 -37.810
Traceless
 xyz
x -6.465 1.987 0.000
y 1.987 8.924 0.000
z 0.000 0.000 -2.459
Polar
3z2-r2-4.919
x2-y2-10.260
xy1.987
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.410 1.169 0.000
y 1.169 8.451 0.000
z 0.000 0.000 6.654


<r2> (average value of r2) Å2
<r2> 266.525
(<r2>)1/2 16.326