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

using model chemistry: PBEPBE/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 PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-308.490492
Energy at 298.15K-308.502025
Nuclear repulsion energy251.876378
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 PBEPBE/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 3052 3020 0.00      
2 Ag 2896 2866 0.00      
3 Ag 2882 2852 0.00      
4 Ag 1480 1465 0.00      
5 Ag 1453 1438 0.00      
6 Ag 1431 1416 0.00      
7 Ag 1389 1375 0.00      
8 Ag 1201 1189 0.00      
9 Ag 1142 1130 0.00      
10 Ag 1054 1043 0.00      
11 Ag 1000 990 0.00      
12 Ag 389 385 0.00      
13 Ag 325 322 0.00      
14 Au 2940 2909 15.04      
15 Au 2933 2902 218.06      
16 Au 1431 1416 11.00      
17 Au 1190 1178 12.08      
18 Au 1140 1129 1.52      
19 Au 808 800 0.08      
20 Au 246 244 5.06      
21 Au 95 94 6.52      
22 Au 69 68 1.80      
23 Bg 2938 2907 0.00      
24 Bg 2907 2877 0.00      
25 Bg 1431 1416 0.00      
26 Bg 1243 1230 0.00      
27 Bg 1159 1147 0.00      
28 Bg 1117 1106 0.00      
29 Bg 236 234 0.00      
30 Bg 128 126 0.00      
31 Bu 3051 3020 54.01      
32 Bu 2898 2868 146.21      
33 Bu 2885 2855 79.03      
34 Bu 1486 1471 1.67      
35 Bu 1456 1441 22.22      
36 Bu 1426 1411 3.06      
37 Bu 1312 1299 27.91      
38 Bu 1179 1167 147.92      
39 Bu 1144 1132 212.10      
40 Bu 955 945 51.76      
41 Bu 491 486 2.98      
42 Bu 141 139 2.85      

Unscaled Zero Point Vibrational Energy (zpe) 30063.2 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 29753.5 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 PBEPBE/6-31G(2df,p)
ABC
0.62158 0.04291 0.04142

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.433 1.746 0.000
O2 -0.433 -1.746 0.000
C3 0.282 -2.963 0.000
C4 -0.282 2.963 0.000
C5 -0.433 0.628 0.000
C6 0.433 -0.628 0.000
H7 0.457 3.779 0.000
H8 -0.457 -3.779 0.000
H9 0.929 -3.065 0.898
H10 0.929 -3.065 -0.898
H11 -0.929 3.065 0.898
H12 -0.929 3.065 -0.898
H13 -1.093 0.626 0.895
H14 -1.093 0.626 -0.895
H15 1.093 -0.626 0.895
H16 1.093 -0.626 -0.895

Atom - Atom Distances (Å)
  O1 O2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O13.59694.71101.41191.41402.37322.03365.59584.91844.91842.09762.09762.09352.09352.61972.6197
O23.59691.41194.71102.37321.41405.59582.03362.09762.09764.91844.91842.61972.61972.09352.0935
C34.71101.41195.95293.66112.34036.74431.10101.11111.11116.21346.21343.94683.94682.63032.6303
C41.41194.71105.95292.34033.66111.10106.74436.21346.21341.11111.11112.63032.63033.94683.9468
C51.41402.37323.66112.34031.52483.27464.40674.03654.03652.64412.64411.11211.11212.16852.1685
C62.37321.41402.34033.66111.52484.40673.27462.64412.64414.03654.03652.16852.16851.11211.1121
H72.03365.59586.74431.10103.27464.40677.61316.91846.91841.79911.79913.62543.62544.54014.5401
H85.59582.03361.10106.74434.40673.27467.61311.79911.79916.91846.91844.54014.54013.62543.6254
H94.91842.09761.11116.21344.03652.64416.91841.79911.79586.40466.65164.20874.57452.44393.0308
H104.91842.09761.11116.21344.03652.64416.91841.79911.79586.65166.40464.57454.20873.03082.4439
H112.09764.91846.21341.11112.64414.03651.79916.91846.40466.65161.79582.44393.03084.20874.5745
H122.09764.91846.21341.11112.64414.03651.79916.91846.65166.40461.79583.03082.44394.57454.2087
H132.09352.61973.94682.63031.11212.16853.62544.54014.20874.57452.44393.03081.78932.52043.0909
H142.09352.61973.94682.63031.11212.16853.62544.54014.57454.20873.03082.44391.78933.09092.5204
H152.61972.09352.63033.94682.16851.11214.54013.62542.44393.03084.20874.57452.52043.09091.7893
H162.61972.09352.63033.94682.16851.11214.54013.62543.03082.44394.57454.20873.09092.52041.7893

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 107.400 O1 C4 H11 111.935
O1 C4 H12 111.935 O1 C5 C6 107.654
O1 C5 H13 111.380 O1 C5 H14 111.380
O2 C3 H8 107.400 O2 C3 H9 111.935
O2 C3 H10 111.935 O2 C6 C5 107.654
O2 C6 H15 111.380 O2 C6 H16 111.380
C3 O2 C6 111.823 C4 O1 C5 111.823
C5 C6 H15 109.655 C5 C6 H16 109.655
C6 C5 H13 109.655 C6 C5 H14 109.655
H7 C4 H11 108.837 H7 C4 H12 108.837
H8 C3 H9 108.837 H8 C3 H10 108.837
H9 C3 H10 107.824 H11 C4 H12 107.824
H13 C5 H14 107.113 H15 C6 H16 107.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.197      
2 O -0.197      
3 C -0.269      
4 C -0.269      
5 C -0.105      
6 C -0.105      
7 H 0.136      
8 H 0.136      
9 H 0.113      
10 H 0.113      
11 H 0.113      
12 H 0.113      
13 H 0.104      
14 H 0.104      
15 H 0.104      
16 H 0.104      


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 -38.978 -3.380 0.000
y -3.380 -32.316 0.000
z 0.000 0.000 -37.938
Traceless
 xyz
x -3.851 -3.380 0.000
y -3.380 6.142 0.000
z 0.000 0.000 -2.291
Polar
3z2-r2-4.583
x2-y2-6.662
xy-3.380
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.310 -0.245 0.000
y -0.245 10.818 0.000
z 0.000 0.000 7.220


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000