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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G3B3
 hartrees
Energy at 0K-307.414486
Energy at 298.15K-307.406356
Nuclear repulsion energy 
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/6-31G*
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 3233 3105 0.27      
2 A1 3163 3038 25.66      
3 A1 3035 2914 7.19      
4 A1 1717 1649 228.02      
5 A1 1541 1480 3.96      
6 A1 1511 1451 8.00      
7 A1 1448 1391 14.25      
8 A1 1243 1193 4.27      
9 A1 1184 1137 0.08      
10 A1 897 861 39.10      
11 A1 504 484 0.33      
12 A1 270 259 4.56      
13 A2 3094 2971 0.00      
14 A2 1518 1458 0.00      
15 A2 1189 1141 0.00      
16 A2 681 654 0.00      
17 A2 246 236 0.00      
18 A2 127 122 0.00      
19 B1 3095 2972 82.08      
20 B1 1518 1457 11.97      
21 B1 1193 1146 1.88      
22 B1 721 693 91.50      
23 B1 676 649 0.00      
24 B1 266 256 0.06      
25 B1 99 95 9.06      
26 B2 3310 3178 6.45      
27 B2 3163 3038 18.01      
28 B2 3034 2914 68.13      
29 B2 1537 1476 16.08      
30 B2 1513 1453 35.91      
31 B2 1361 1307 491.19      
32 B2 1229 1181 19.17      
33 B2 1080 1037 112.48      
34 B2 954 916 0.20      
35 B2 564 542 0.16      
36 B2 383 368 8.12      

Unscaled Zero Point Vibrational Energy (zpe) 26147.9 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 25109.8 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/6-31G*
ABC
0.30261 0.07655 0.06256

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.423
C2 0.000 0.000 0.079
H3 0.000 0.922 1.986
H4 0.000 -0.922 1.986
O5 0.000 1.082 -0.734
O6 0.000 -1.082 -0.734
C7 0.000 2.358 -0.116
C8 0.000 -2.358 -0.116
H9 0.000 3.084 -0.931
H10 0.000 -3.084 -0.931
H11 -0.894 2.500 0.504
H12 0.894 2.500 0.504
H13 0.894 -2.500 0.504
H14 -0.894 -2.500 0.504

Atom - Atom Distances (Å)
  C1 C2 H3 H4 O5 O6 C7 C8 H9 H10 H11 H12 H13 H14
C11.34441.08041.08042.41352.41352.81622.81623.88003.88002.80932.80932.80932.8093
C21.34442.11852.11851.35321.35322.36632.36633.24543.24542.68862.68862.68862.6886
H31.08042.11851.84442.72503.37872.54573.89623.63074.95582.34182.34183.83463.8346
H41.08042.11851.84443.37872.72503.89622.54574.95583.63073.83463.83462.34182.3418
O52.41351.35322.72503.37872.16331.41853.49512.01244.17072.08422.08423.89333.8933
O62.41351.35323.37872.72502.16333.49511.41854.17072.01243.89333.89332.08422.0842
C72.81622.36632.54573.89621.41853.49514.71661.09125.50341.09741.09744.97824.9782
C82.81622.36633.89622.54573.49511.41854.71665.50341.09124.97824.97821.09741.0974
H93.88003.24543.63074.95582.01244.17071.09125.50346.16891.78891.78895.83435.8343
H103.88003.24544.95583.63074.17072.01245.50341.09126.16895.83435.83431.78891.7889
H112.80932.68862.34183.83462.08423.89331.09744.97821.78895.83431.78885.30944.9990
H122.80932.68862.34183.83462.08423.89331.09744.97821.78895.83431.78884.99905.3094
H132.80932.68863.83462.34183.89332.08424.97821.09745.83431.78895.30944.99901.7888
H142.80932.68863.83462.34183.89332.08424.97821.09745.83431.78894.99905.30941.7888

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 126.934 C1 C2 O6 126.934
C2 C1 H3 121.394 C2 C1 H4 121.394
C2 O5 C7 117.225 C2 O6 C8 117.225
H3 C1 H4 117.211 O5 C2 O6 106.133
O5 C7 H9 105.873 O5 C7 H11 111.228
O5 C7 H12 111.228 O6 C8 H10 105.873
O6 C8 H13 111.228 O6 C8 H14 111.228
H9 C7 H11 109.643 H9 C7 H12 109.643
H10 C8 H13 109.643 H10 C8 H14 109.643
H11 C7 H12 109.171 H13 C8 H14 109.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.503 -0.757   -0.786
2 C 0.623 0.644   0.646
3 H 0.139 0.209   0.219
4 H 0.139 0.209   0.219
5 O -0.463 -0.382   -0.367
6 O -0.463 -0.382   -0.367
7 C -0.216 0.150   0.070
8 C -0.216 0.150   0.070
9 H 0.170 0.057   0.079
10 H 0.170 0.057   0.079
11 H 0.155 0.012   0.033
12 H 0.155 0.012   0.035
13 H 0.155 0.012   0.035
14 H 0.155 0.012   0.033


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 1.159 1.159
CHELPG 0.000 0.000 1.184 1.184
AIM        
ESP 0.012 0.000 1.187 1.187


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 187.462
(<r2>)1/2 13.692