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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-307.048375
Energy at 298.15K-307.059892
Nuclear repulsion energy249.232685
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 B3PW91/3-21G*
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 3140 3012 0.00      
2 Ag 3015 2893 0.00      
3 Ag 2995 2873 0.00      
4 Ag 1587 1522 0.00      
5 Ag 1567 1503 0.00      
6 Ag 1509 1448 0.00      
7 Ag 1438 1380 0.00      
8 Ag 1215 1165 0.00      
9 Ag 1122 1077 0.00      
10 Ag 1074 1031 0.00      
11 Ag 968 928 0.00      
12 Ag 382 367 0.00      
13 Ag 319 306 0.00      
14 Au 3072 2947 101.58      
15 Au 3041 2917 131.57      
16 Au 1545 1482 17.66      
17 Au 1225 1176 7.00      
18 Au 1163 1115 0.22      
19 Au 882 846 0.01      
20 Au 241 231 10.95      
21 Au 104 100 12.27      
22 Au 63 61 3.71      
23 Bg 3042 2918 0.00      
24 Bg 3040 2916 0.00      
25 Bg 1545 1482 0.00      
26 Bg 1332 1278 0.00      
27 Bg 1181 1133 0.00      
28 Bg 1142 1096 0.00      
29 Bg 229 220 0.00      
30 Bg 122 117 0.00      
31 Bu 3139 3012 51.90      
32 Bu 3021 2899 75.52      
33 Bu 2994 2873 95.88      
34 Bu 1594 1529 2.76      
35 Bu 1571 1507 28.29      
36 Bu 1503 1442 4.30      
37 Bu 1374 1318 17.75      
38 Bu 1192 1144 56.20      
39 Bu 1132 1086 216.60      
40 Bu 917 880 36.61      
41 Bu 484 465 7.00      
42 Bu 129 124 6.52      

Unscaled Zero Point Vibrational Energy (zpe) 31174.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 29908.6 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 B3PW91/3-21G*
ABC
0.60672 0.04207 0.04056

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.395 1.153 0.000
O2 -1.395 -1.153 0.000
C3 -1.544 -2.594 0.000
C4 1.544 2.594 0.000
C5 0.000 0.761 0.000
C6 0.000 -0.761 0.000
H7 2.619 2.791 0.000
H8 -2.619 -2.791 0.000
H9 -1.093 -3.055 0.892
H10 -1.093 -3.055 -0.892
H11 1.093 3.055 0.892
H12 1.093 3.055 -0.892
H13 -0.531 1.126 0.891
H14 -0.531 1.126 -0.891
H15 0.531 -1.126 0.891
H16 0.531 -1.126 -0.891

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.62014.76261.44841.44932.36842.04485.62794.96954.96952.12252.12252.12252.12252.59572.5957
O23.62011.44844.76262.36841.44935.62792.04482.12252.12254.96954.96952.59572.59572.12252.1225
C34.76261.44846.03793.69312.39726.80701.09301.10141.10146.29796.29793.95763.95762.69372.6937
C41.44844.76266.03792.39723.69311.09306.80706.29796.29791.10141.10142.69372.69373.95763.9576
C51.44932.36843.69312.39721.52133.31424.41314.06834.06832.69352.69351.10011.10012.15342.1534
C62.36841.44932.39723.69311.52134.41313.31422.69352.69354.06834.06832.15342.15341.10011.1001
H72.04485.62796.80701.09303.31424.41317.65536.98246.98241.78811.78813.67303.67304.52794.5279
H85.62792.04481.09306.80704.41313.31427.65531.78811.78816.98246.98244.52794.52793.67303.6730
H94.96952.12251.10146.29794.06832.69356.98241.78811.78466.48946.73034.21914.58062.52133.0884
H104.96952.12251.10146.29794.06832.69356.98241.78811.78466.73036.48944.58064.21913.08842.5213
H112.12254.96956.29791.10142.69354.06831.78816.98246.48946.73031.78462.52133.08844.21914.5806
H122.12254.96956.29791.10142.69354.06831.78816.98246.73036.48941.78463.08842.52134.58064.2191
H132.12252.59573.95762.69371.10012.15343.67304.52794.21914.58062.52133.08841.78292.49043.0628
H142.12252.59573.95762.69371.10012.15343.67304.52794.58064.21913.08842.52131.78293.06282.4904
H152.59572.12252.69373.95762.15341.10014.52793.67302.52133.08844.21914.58062.49043.06281.7829
H162.59572.12252.69373.95762.15341.10014.52793.67303.08842.52134.58064.21913.06282.49041.7829

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 106.298 O1 C4 H11 111.977
O1 C4 H12 111.977 O1 C5 C6 105.719
O1 C5 H13 111.996 O1 C5 H14 111.996
O2 C3 H8 106.298 O2 C3 H9 111.977
O2 C3 H10 111.977 O2 C6 C5 105.719
O2 C6 H15 111.996 O2 C6 H16 111.996
C3 O2 C6 111.636 C4 O1 C5 111.636
C5 C6 H15 109.413 C5 C6 H16 109.413
C6 C5 H13 109.413 C6 C5 H14 109.413
H7 C4 H11 109.148 H7 C4 H12 109.148
H8 C3 H9 109.148 H8 C3 H10 109.148
H9 C3 H10 108.228 H11 C4 H12 108.228
H13 C5 H14 108.250 H15 C6 H16 108.250
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.497      
2 O -0.497      
3 C -0.365      
4 C -0.365      
5 C -0.170      
6 C -0.170      
7 H 0.226      
8 H 0.226      
9 H 0.194      
10 H 0.194      
11 H 0.194      
12 H 0.194      
13 H 0.209      
14 H 0.209      
15 H 0.209      
16 H 0.209      


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 -40.550 2.753 0.000
y 2.753 -28.234 0.000
z 0.000 0.000 -38.017
Traceless
 xyz
x -7.425 2.753 0.000
y 2.753 11.049 0.000
z 0.000 0.000 -3.625
Polar
3z2-r2-7.250
x2-y2-12.316
xy2.753
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 274.948
(<r2>)1/2 16.582