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 C4H8O2 (Ethene, 1,1-dimethoxy-)

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-307.564361
Energy at 298.15K-307.573846
HF Energy-307.564361
Nuclear repulsion energy249.525530
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 wB97X-D/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3247 3093 0.94      
2 A1 3193 3042 17.71      
3 A1 3044 2900 8.39      
4 A1 1717 1636 324.23      
5 A1 1527 1454 1.00      
6 A1 1495 1424 18.58      
7 A1 1431 1364 11.41      
8 A1 1253 1194 3.49      
9 A1 1210 1153 0.45      
10 A1 913 870 42.97      
11 A1 513 489 0.59      
12 A1 285 271 5.71      
13 A2 3117 2969 0.00      
14 A2 1511 1439 0.00      
15 A2 1184 1128 0.00      
16 A2 675 643 0.00      
17 A2 256 244 0.00      
18 A2 127 121 0.00      
19 B1 3117 2970 70.13      
20 B1 1511 1439 20.12      
21 B1 1188 1131 2.03      
22 B1 744 709 105.38      
23 B1 685 653 1.99      
24 B1 280 267 0.26      
25 B1 90 86 10.24      
26 B2 3335 3177 3.36      
27 B2 3193 3042 18.08      
28 B2 3044 2899 70.82      
29 B2 1516 1445 79.73      
30 B2 1506 1434 20.26      
31 B2 1392 1326 519.85      
32 B2 1232 1174 7.83      
33 B2 1098 1046 94.35      
34 B2 959 913 0.48      
35 B2 565 539 0.28      
36 B2 402 383 6.98      

Unscaled Zero Point Vibrational Energy (zpe) 26277.6 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 25032.0 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 wB97X-D/cc-pVDZ
ABC
0.30506 0.07714 0.06306

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.357
C2 0.000 0.000 -0.016
H3 0.000 0.896 1.876
H4 0.000 -0.896 1.876
O5 0.000 1.227 -0.788
O6 0.000 -1.227 -0.788
C7 0.000 2.499 -0.036
C8 0.000 -2.499 -0.036
H9 0.000 3.371 -0.613
H10 0.000 -3.371 -0.613
H11 -0.809 2.680 0.615
H12 0.809 2.680 0.615
H13 0.809 -2.680 0.615
H14 -0.809 -2.680 0.615

Atom - Atom Distances (Å)
  C1 C2 H3 H4 O5 O6 C7 C8 H9 H10 H11 H12 H13 H14
C11.37301.03581.03582.47042.47042.86092.86093.90443.90442.89632.89632.89632.8963
C21.37302.09372.09371.44911.44912.49932.49933.42363.42362.87012.87012.87012.8701
H31.03582.09371.79282.68383.40612.49453.89663.50974.94022.32942.32943.87773.8777
H41.03582.09371.79283.40612.68383.89662.49454.94023.50973.87773.87772.32942.3294
O52.47041.44912.68383.40612.45361.47813.80122.15164.60142.17612.17614.22944.2294
O62.47041.44913.40612.68382.45363.80121.47814.60142.15164.22944.22942.17612.1761
C72.86092.49932.49453.89661.47813.80124.99851.04575.89881.05421.05425.28265.2826
C82.86092.49933.89662.49453.80121.47814.99855.89881.04575.28265.28261.05421.0542
H93.90443.42363.50974.94022.15164.60141.04575.89886.74261.62501.62506.22776.2277
H103.90443.42364.94023.50974.60142.15165.89881.04576.74266.22776.22771.62501.6250
H112.89632.87012.32943.87772.17614.22941.05425.28261.62506.22771.61875.59955.3605
H122.89632.87012.32943.87772.17614.22941.05425.28261.62506.22771.61875.36055.5995
H132.89632.87013.87772.32944.22942.17615.28261.05426.22771.62505.59955.36051.6187
H142.89632.87013.87772.32944.22942.17615.28261.05426.22771.62505.36055.59951.6187

picture of Ethene, 1,1-dimethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O5 122.159 C1 C2 O6 122.159
C2 C1 H3 120.075 C2 C1 H4 120.075
C2 O5 C7 117.259 C2 O6 C8 117.259
H3 C1 H4 119.850 O5 C2 O6 115.683
O5 C7 H9 115.919 O5 C7 H11 117.509
O5 C7 H12 117.509 O6 C8 H10 115.919
O6 C8 H13 117.509 O6 C8 H14 117.509
H9 C7 H11 101.394 H9 C7 H12 101.394
H10 C8 H13 101.394 H10 C8 H14 101.394
H11 C7 H12 100.303 H13 C8 H14 100.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.303      
2 C 0.194      
3 H 0.144      
4 H 0.144      
5 O -0.347      
6 O -0.347      
7 C -0.220      
8 C -0.220      
9 H 0.165      
10 H 0.165      
11 H 0.156      
12 H 0.156      
13 H 0.156      
14 H 0.156      


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 1.273 1.273
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.935 0.000 0.000
y 0.000 -26.118 0.000
z 0.000 0.000 -40.006
Traceless
 xyz
x -5.873 0.000 0.000
y 0.000 13.352 0.000
z 0.000 0.000 -7.479
Polar
3z2-r2-14.959
x2-y2-12.817
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.713 0.000 0.000
y 0.000 9.537 0.000
z 0.000 0.000 8.833


<r2> (average value of r2) Å2
<r2> 186.587
(<r2>)1/2 13.660