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: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-307.719049
Energy at 298.15K-307.728447
Nuclear repulsion energy248.805584
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/6-311G*
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 3201 3094 0.05      
2 A1 3147 3041 29.71      
3 A1 3018 2917 9.10      
4 A1 1691 1634 257.77      
5 A1 1531 1479 6.24      
6 A1 1504 1453 11.39      
7 A1 1437 1389 15.52      
8 A1 1241 1199 3.96      
9 A1 1173 1133 0.00      
10 A1 891 861 42.48      
11 A1 503 486 0.61      
12 A1 269 260 4.77      
13 A2 3077 2973 0.00      
14 A2 1510 1459 0.00      
15 A2 1187 1147 0.00      
16 A2 678 655 0.00      
17 A2 252 243 0.00      
18 A2 133 128 0.00      
19 B1 3077 2974 92.88      
20 B1 1509 1459 18.14      
21 B1 1191 1151 1.76      
22 B1 723 699 96.96      
23 B1 680 657 3.60      
24 B1 272 263 0.12      
25 B1 101 97 9.38      
26 B2 3279 3169 7.91      
27 B2 3146 3040 19.29      
28 B2 3018 2916 72.55      
29 B2 1526 1475 17.42      
30 B2 1504 1454 38.08      
31 B2 1342 1297 494.70      
32 B2 1229 1188 19.83      
33 B2 1068 1032 123.73      
34 B2 945 913 0.38      
35 B2 565 546 0.32      
36 B2 381 368 7.95      

Unscaled Zero Point Vibrational Energy (zpe) 25998.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 25122.3 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/6-311G*
ABC
0.30395 0.07652 0.06259

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.422
C2 0.000 0.000 0.079
H3 0.000 0.920 1.986
H4 0.000 -0.920 1.986
O5 0.000 1.080 -0.730
O6 0.000 -1.080 -0.730
C7 0.000 2.360 -0.118
C8 0.000 -2.360 -0.118
H9 0.000 3.079 -0.935
H10 0.000 -3.079 -0.935
H11 -0.893 2.504 0.498
H12 0.893 2.504 0.498
H13 0.893 -2.504 0.498
H14 -0.893 -2.504 0.498

Atom - Atom Distances (Å)
  C1 C2 H3 H4 O5 O6 C7 C8 H9 H10 H11 H12 H13 H14
C11.34241.07901.07902.40782.40782.81792.81793.87733.87732.81472.81472.81472.8147
C21.34242.11682.11681.34981.34982.36822.36823.24163.24162.69172.69172.69172.6917
H31.07902.11681.83952.72073.37292.54973.89663.63234.95182.34982.34983.83873.8387
H41.07902.11681.83953.37292.72073.89662.54974.95183.63233.83873.83872.34982.3498
O52.40781.34982.72073.37292.16021.41873.49412.00924.16402.08212.08213.89303.8930
O62.40781.34983.37292.72072.16023.49411.41874.16402.00923.89303.89302.08212.0821
C72.81792.36822.54973.89661.41873.49414.71991.08825.49981.09481.09484.98394.9839
C82.81792.36823.89662.54973.49411.41874.71995.49981.08824.98394.98391.09481.0948
H93.87733.24163.63234.95182.00924.16401.08825.49986.15761.78381.78385.83305.8330
H103.87733.24164.95183.63234.16402.00925.49981.08826.15765.83305.83301.78381.7838
H112.81472.69172.34983.83872.08213.89301.09484.98391.78385.83301.78635.31785.0088
H122.81472.69172.34983.83872.08213.89301.09484.98391.78385.83301.78635.00885.3178
H132.81472.69173.83872.34983.89302.08214.98391.09485.83301.78385.31785.00881.7863
H142.81472.69173.83872.34983.89302.08214.98391.09485.83301.78385.00885.31781.7863

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 126.851 C1 C2 O6 126.851
C2 C1 H3 121.522 C2 C1 H4 121.522
C2 O5 C7 117.591 C2 O6 C8 117.591
H3 C1 H4 116.957 O5 C2 O6 106.298
O5 C7 H9 105.788 O5 C7 H11 111.218
O5 C7 H12 111.218 O6 C8 H10 105.788
O6 C8 H13 111.218 O6 C8 H14 111.218
H9 C7 H11 109.603 H9 C7 H12 109.603
H10 C8 H13 109.603 H10 C8 H14 109.603
H11 C7 H12 109.344 H13 C8 H14 109.344
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.662     -0.904
2 C 0.455     0.720
3 H 0.212     0.254
4 H 0.212     0.254
5 O -0.299     -0.386
6 O -0.299     -0.386
7 C -0.458     0.062
8 C -0.458     0.062
9 H 0.227     0.086
10 H 0.227     0.086
11 H 0.211     0.037
12 H 0.211     0.039
13 H 0.211     0.039
14 H 0.211     0.037


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 1.142 1.142
CHELPG        
AIM        
ESP 0.015 0.000 1.183 1.183


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.754 0.000 0.000
y 0.000 -26.514 0.000
z 0.000 0.000 -39.605
Traceless
 xyz
x -5.694 0.000 0.000
y 0.000 12.665 0.000
z 0.000 0.000 -6.971
Polar
3z2-r2-13.943
x2-y2-12.240
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.600 0.000 0.000
y 0.000 9.490 0.000
z 0.000 0.000 8.000


<r2> (average value of r2) Å2
<r2> 187.754
(<r2>)1/2 13.702