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All results from a given calculation for C4H8O2 (Ethene, 1,1-dimethoxy-)

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-303.567862
Energy at 298.15K-303.576964
Nuclear repulsion energy243.898153
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 B1B95/STO-3G
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 3473 3066 0.36      
2 A1 3469 3064 31.14      
3 A1 3273 2890 0.18      
4 A1 1847 1631 96.04      
5 A1 1673 1477 4.28      
6 A1 1601 1414 5.99      
7 A1 1556 1374 8.68      
8 A1 1264 1116 0.22      
9 A1 1228 1084 0.44      
10 A1 903 797 9.74      
11 A1 491 433 0.01      
12 A1 288 255 2.12      
13 A2 3426 3025 0.00      
14 A2 1649 1456 0.00      
15 A2 1184 1046 0.00      
16 A2 692 611 0.00      
17 A2 314 277 0.00      
18 A2 127 112 0.00      
19 B1 3426 3025 8.56      
20 B1 1649 1456 8.77      
21 B1 1187 1048 0.82      
22 B1 777 686 50.56      
23 B1 605 534 12.08      
24 B1 335 296 0.02      
25 B1 98 87 6.52      
26 B2 3621 3197 1.08      
27 B2 3473 3066 0.56      
28 B2 3273 2890 14.34      
29 B2 1668 1473 11.29      
30 B2 1586 1400 0.38      
31 B2 1421 1255 271.59      
32 B2 1245 1099 18.93      
33 B2 1144 1010 17.00      
34 B2 988 873 4.81      
35 B2 565 499 0.68      
36 B2 419 370 4.79      

Unscaled Zero Point Vibrational Energy (zpe) 27967.7 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 24695.5 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 B1B95/STO-3G
ABC
0.28582 0.07521 0.06094

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.431
C2 0.000 0.000 0.082
H3 0.000 0.925 1.998
H4 0.000 -0.925 1.998
O5 0.000 1.106 -0.799
O6 0.000 -1.106 -0.799
C7 0.000 2.372 -0.072
C8 0.000 -2.372 -0.072
H9 0.000 3.161 -0.843
H10 0.000 -3.161 -0.843
H11 -0.900 2.488 0.564
H12 0.900 2.488 0.564
H13 0.900 -2.488 0.564
H14 -0.900 -2.488 0.564

Atom - Atom Distances (Å)
  C1 C2 H3 H4 O5 O6 C7 C8 H9 H10 H11 H12 H13 H14
C11.34851.08531.08532.48872.48872.80722.80723.89363.89362.78392.78392.78392.7839
C21.34852.12752.12751.41381.41382.37652.37653.29333.29332.68922.68922.68922.6892
H31.08532.12751.85052.80283.45652.52483.89253.61524.97662.30372.30373.80983.8098
H41.08532.12751.85053.45652.80283.89252.52484.97663.61523.80983.80982.30372.3037
O52.48871.41382.80283.45652.21111.46013.55242.05554.26632.13982.13983.94733.9473
O62.48871.41383.45652.80282.21113.55241.46014.26632.05553.94733.94732.13982.1398
C72.80722.37652.52483.89251.46013.55244.74301.10385.58561.10771.10774.98284.9828
C82.80722.37653.89252.52483.55241.46014.74305.58561.10384.98284.98281.10771.1077
H93.89363.29333.61524.97662.05554.26631.10385.58566.32101.80081.80085.89045.8904
H103.89363.29334.97663.61524.26632.05555.58561.10386.32105.89045.89041.80081.8008
H112.78392.68922.30373.80982.13983.94731.10774.98281.80085.89041.79905.29134.9760
H122.78392.68922.30373.80982.13983.94731.10774.98281.80085.89041.79904.97605.2913
H132.78392.68923.80982.30373.94732.13984.98281.10775.89041.80085.29134.97601.7990
H142.78392.68923.80982.30373.94732.13984.98281.10775.89041.80084.97605.29131.7990

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 128.557 C1 C2 O6 128.557
C2 C1 H3 121.516 C2 C1 H4 121.516
C2 O5 C7 111.560 C2 O6 C8 111.560
H3 C1 H4 116.967 O5 C2 O6 102.886
O5 C7 H9 105.745 O5 C7 H11 112.159
O5 C7 H12 112.159 O6 C8 H10 105.745
O6 C8 H13 112.159 O6 C8 H14 112.159
H9 C7 H11 109.040 H9 C7 H12 109.040
H10 C8 H13 109.040 H10 C8 H14 109.040
H11 C7 H12 108.597 H13 C8 H14 108.597
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.254      
2 C 0.164      
3 H 0.072      
4 H 0.072      
5 O -0.170      
6 O -0.170      
7 C -0.127      
8 C -0.127      
9 H 0.095      
10 H 0.095      
11 H 0.088      
12 H 0.088      
13 H 0.088      
14 H 0.088      


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 1.211 1.211
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.538 0.000 0.000
y 0.000 -26.319 0.000
z 0.000 0.000 -36.327
Traceless
 xyz
x -3.215 0.000 0.000
y 0.000 9.113 0.000
z 0.000 0.000 -5.898
Polar
3z2-r2-11.796
x2-y2-8.219
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.039 0.000 0.000
y 0.000 6.287 0.000
z 0.000 0.000 4.702


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