return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-308.816187
Energy at 298.15K-308.827556
Nuclear repulsion energy247.684115
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/LANL2DZ
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 3163 3041 0.00      
2 Ag 3017 2899 0.00      
3 Ag 2997 2881 0.00      
4 Ag 1535 1476 0.00      
5 Ag 1516 1457 0.00      
6 Ag 1488 1431 0.00      
7 Ag 1444 1388 0.00      
8 Ag 1211 1164 0.00      
9 Ag 1134 1090 0.00      
10 Ag 1075 1033 0.00      
11 Ag 952 915 0.00      
12 Ag 380 365 0.00      
13 Ag 313 301 0.00      
14 Au 3088 2968 135.91      
15 Au 3069 2950 156.03      
16 Au 1505 1446 23.34      
17 Au 1213 1166 11.47      
18 Au 1149 1104 0.11      
19 Au 859 826 0.39      
20 Au 218 210 13.23      
21 Au 91 88 17.72      
22 Au 66 63 5.05      
23 Bg 3069 2950 0.00      
24 Bg 3058 2939 0.00      
25 Bg 1505 1446 0.00      
26 Bg 1298 1248 0.00      
27 Bg 1165 1120 0.00      
28 Bg 1132 1088 0.00      
29 Bg 206 198 0.00      
30 Bg 110 106 0.00      
31 Bu 3163 3041 73.33      
32 Bu 3021 2903 128.05      
33 Bu 2996 2880 142.69      
34 Bu 1543 1483 7.32      
35 Bu 1516 1457 26.51      
36 Bu 1483 1426 0.41      
37 Bu 1379 1326 8.92      
38 Bu 1189 1143 41.24      
39 Bu 1116 1073 245.45      
40 Bu 887 853 44.85      
41 Bu 482 463 6.61      
42 Bu 138 133 8.11      

Unscaled Zero Point Vibrational Energy (zpe) 30969.6 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 29768.0 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/LANL2DZ
ABC
0.61579 0.04113 0.03973

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.397 1.178 0.000
O2 -1.397 -1.178 0.000
C3 -1.569 -2.620 0.000
C4 1.569 2.620 0.000
C5 0.000 0.762 0.000
C6 0.000 -0.762 0.000
H7 2.647 2.805 0.000
H8 -2.647 -2.805 0.000
H9 -1.120 -3.079 0.896
H10 -1.120 -3.079 -0.896
H11 1.120 3.079 0.896
H12 1.120 3.079 -0.896
H13 -0.521 1.141 0.894
H14 -0.521 1.141 -0.894
H15 0.521 -1.141 0.894
H16 0.521 -1.141 -0.894

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.65494.81961.45241.45752.39112.05145.67615.02605.02602.11942.11942.11612.11612.63572.6357
O23.65491.45244.81962.39111.45755.67612.05142.11942.11945.02605.02602.63572.63572.11612.1161
C34.81961.45246.10883.72912.43216.87101.09331.10241.10246.36536.36534.00604.00602.71222.7122
C41.45244.81966.10882.43213.72911.09336.87106.36536.36531.10241.10242.71222.71224.00604.0060
C51.45752.39113.72912.43211.52473.34344.44194.10024.10022.72472.72471.10191.10192.16642.1664
C62.39111.45752.43213.72911.52474.44193.34342.72472.72474.10024.10022.16642.16641.10191.1019
H72.05145.67616.87101.09333.34344.44197.71327.04357.04351.79161.79163.68803.68804.57064.5706
H85.67612.05141.09336.87104.44193.34347.71321.79161.79167.04357.04354.57064.57063.68803.6880
H95.02602.11941.10246.36534.10022.72477.04351.79161.79286.55236.79324.26214.62302.53913.1070
H105.02602.11941.10246.36534.10022.72477.04351.79161.79286.79326.55234.62304.26213.10702.5391
H112.11945.02606.36531.10242.72474.10021.79167.04356.55236.79321.79282.53913.10704.26214.6230
H122.11945.02606.36531.10242.72474.10021.79167.04356.79326.55231.79283.10702.53914.62304.2621
H132.11612.63574.00602.71221.10192.16643.68804.57064.26214.62302.53913.10701.78862.50833.0807
H142.11612.63574.00602.71221.10192.16643.68804.57064.62304.26213.10702.53911.78863.08072.5083
H152.63572.11612.71224.00602.16641.10194.57063.68802.53913.10704.26214.62302.50833.08071.7886
H162.63572.11612.71224.00602.16641.10194.57063.68803.10702.53914.62304.26213.08072.50831.7886

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 106.523 O1 C4 H11 111.371
O1 C4 H12 111.371 O1 C5 C6 106.583
O1 C5 H13 110.778 O1 C5 H14 110.778
O2 C3 H8 106.523 O2 C3 H9 111.371
O2 C3 H10 111.371 O2 C6 C5 106.583
O2 C6 H15 110.778 O2 C6 H16 110.778
C3 O2 C6 113.400 C4 O1 C5 113.400
C5 C6 H15 110.100 C5 C6 H16 110.100
C6 C5 H13 110.100 C6 C5 H14 110.100
H7 C4 H11 109.361 H7 C4 H12 109.361
H8 C3 H9 109.361 H8 C3 H10 109.361
H9 C3 H10 108.808 H11 C4 H12 108.808
H13 C5 H14 108.501 H15 C6 H16 108.501
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.327      
2 O -0.327      
3 C -0.441      
4 C -0.441      
5 C -0.214      
6 C -0.214      
7 H 0.222      
8 H 0.222      
9 H 0.191      
10 H 0.191      
11 H 0.191      
12 H 0.191      
13 H 0.189      
14 H 0.189      
15 H 0.189      
16 H 0.189      


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 -41.876 2.785 0.000
y 2.785 -26.677 0.000
z 0.000 0.000 -37.637
Traceless
 xyz
x -9.720 2.785 0.000
y 2.785 13.080 0.000
z 0.000 0.000 -3.361
Polar
3z2-r2-6.721
x2-y2-15.200
xy2.785
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.429 1.479 0.000
y 1.479 8.529 0.000
z 0.000 0.000 6.139


<r2> (average value of r2) Å2
<r2> 279.854
(<r2>)1/2 16.729