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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-307.162516
Energy at 298.15K-307.174035
Nuclear repulsion energy248.575614
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 B3LYP/3-21G
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 3129 3019 0.00      
2 Ag 3010 2904 0.00      
3 Ag 2990 2885 0.00      
4 Ag 1592 1536 0.00      
5 Ag 1573 1518 0.00      
6 Ag 1514 1460 0.00      
7 Ag 1441 1390 0.00      
8 Ag 1213 1171 0.00      
9 Ag 1105 1066 0.00      
10 Ag 1065 1027 0.00      
11 Ag 954 920 0.00      
12 Ag 380 366 0.00      
13 Ag 319 308 0.00      
14 Au 3061 2954 111.50      
15 Au 3030 2923 131.57      
16 Au 1550 1496 14.21      
17 Au 1223 1180 7.10      
18 Au 1162 1121 0.49      
19 Au 884 853 0.01      
20 Au 239 231 10.39      
21 Au 103 100 12.44      
22 Au 64 62 3.26      
23 Bg 3031 2924 0.00      
24 Bg 3029 2923 0.00      
25 Bg 1550 1496 0.00      
26 Bg 1333 1287 0.00      
27 Bg 1180 1139 0.00      
28 Bg 1142 1102 0.00      
29 Bg 229 221 0.00      
30 Bg 122 118 0.00      
31 Bu 3129 3019 56.28      
32 Bu 3016 2910 80.03      
33 Bu 2990 2885 95.92      
34 Bu 1601 1545 2.47      
35 Bu 1577 1521 25.91      
36 Bu 1508 1456 7.29      
37 Bu 1378 1329 24.91      
38 Bu 1191 1149 44.51      
39 Bu 1116 1077 236.73      
40 Bu 900 869 35.43      
41 Bu 484 467 6.98      
42 Bu 130 126 6.02      

Unscaled Zero Point Vibrational Energy (zpe) 31117.7 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 30025.5 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 B3LYP/3-21G
ABC
0.60747 0.04175 0.04026

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.400 1.154 0.000
O2 -1.400 -1.154 0.000
C3 -1.563 -2.598 0.000
C4 1.563 2.598 0.000
C5 0.000 0.762 0.000
C6 0.000 -0.762 0.000
H7 2.639 2.784 0.000
H8 -2.639 -2.784 0.000
H9 -1.116 -3.063 0.892
H10 -1.116 -3.063 -0.892
H11 1.116 3.063 0.892
H12 1.116 3.063 -0.892
H13 -0.530 1.128 0.891
H14 -0.530 1.128 -0.891
H15 0.530 -1.128 0.891
H16 0.530 -1.128 -0.891

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.62884.78121.45311.45372.37342.04735.64124.99144.99142.12612.12612.12582.12582.60012.6001
O23.62881.45314.78122.37341.45375.64122.04732.12612.12614.99144.99142.60012.60012.12582.1258
C34.78121.45316.06433.70632.41116.82831.09221.10061.10066.32676.32673.96843.96842.70832.7083
C41.45314.78126.06432.41113.70631.09226.82836.32676.32671.10061.10062.70832.70833.96843.9684
C51.45372.37343.70632.41111.52483.32454.42054.08384.08382.70842.70841.09921.09922.15622.1562
C62.37341.45372.41113.70631.52484.42053.32452.70842.70844.08384.08382.15622.15621.09921.0992
H72.04735.64126.82831.09223.32454.42057.67217.00637.00631.78711.78713.68503.68504.53294.5329
H85.64122.04731.09226.82834.42053.32457.67211.78711.78717.00637.00634.53294.53293.68503.6850
H94.99142.12611.10066.32674.08382.70847.00631.78711.78366.52076.76034.23254.59252.54053.1035
H104.99142.12611.10066.32674.08382.70847.00631.78711.78366.76036.52074.59254.23253.10352.5405
H112.12614.99146.32671.10062.70844.08381.78717.00636.52076.76031.78362.54053.10354.23254.5925
H122.12614.99146.32671.10062.70844.08381.78717.00636.76036.52071.78363.10352.54054.59254.2325
H132.12582.60013.96842.70831.09922.15623.68504.53294.23254.59252.54053.10351.78132.49343.0643
H142.12582.60013.96842.70831.09922.15623.68504.53294.59254.23253.10352.54051.78133.06432.4934
H152.60012.12582.70833.96842.15621.09924.53293.68502.54053.10354.23254.59252.49343.06431.7813
H162.60012.12582.70833.96842.15621.09924.53293.68503.10352.54054.59254.23253.06432.49341.7813

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 106.222 O1 C4 H11 111.985
O1 C4 H12 111.985 O1 C5 C6 105.637
O1 C5 H13 112.001 O1 C5 H14 112.001
O2 C3 H8 106.222 O2 C3 H9 111.985
O2 C3 H10 111.985 O2 C6 C5 105.637
O2 C6 H15 112.001 O2 C6 H16 112.001
C3 O2 C6 112.084 C4 O1 C5 112.084
C5 C6 H15 109.449 C5 C6 H16 109.449
C6 C5 H13 109.449 C6 C5 H14 109.449
H7 C4 H11 109.170 H7 C4 H12 109.170
H8 C3 H9 109.170 H8 C3 H10 109.170
H9 C3 H10 108.244 H11 C4 H12 108.244
H13 C5 H14 108.251 H15 C6 H16 108.251
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.492     -0.391
2 O -0.492     -0.388
3 C -0.308     -0.023
4 C -0.308     -0.030
5 C -0.128     0.135
6 C -0.128     0.103
7 H 0.204     0.093
8 H 0.204     0.091
9 H 0.175     0.056
10 H 0.175     0.056
11 H 0.175     0.057
12 H 0.175     0.057
13 H 0.187     0.042
14 H 0.187     0.042
15 H 0.187     0.049
16 H 0.187     0.049


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 -0.007 -0.007 0.000 0.010


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.618 2.757 0.000
y 2.757 -28.600 0.000
z 0.000 0.000 -38.182
Traceless
 xyz
x -7.227 2.757 0.000
y 2.757 10.800 0.000
z 0.000 0.000 -3.573
Polar
3z2-r2-7.146
x2-y2-12.019
xy2.757
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.308 1.537 0.000
y 1.537 8.544 0.000
z 0.000 0.000 6.130


<r2> (average value of r2) Å2
<r2> 276.857
(<r2>)1/2 16.639