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

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-305.664664
Energy at 298.15K-305.674222
Nuclear repulsion energy247.544437
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 HF/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 3394 3065 0.51      
2 A1 3353 3027 24.61      
3 A1 3214 2901 5.05      
4 A1 1833 1655 289.46      
5 A1 1670 1508 8.18      
6 A1 1642 1483 4.37      
7 A1 1583 1429 30.86      
8 A1 1332 1203 4.70      
9 A1 1249 1128 1.46      
10 A1 929 839 58.95      
11 A1 514 464 0.05      
12 A1 261 235 8.66      
13 A2 3288 2969 0.00      
14 A2 1658 1497 0.00      
15 A2 1279 1155 0.00      
16 A2 750 678 0.00      
17 A2 232 210 0.00      
18 A2 133 120 0.00      
19 B1 3288 2969 85.92      
20 B1 1658 1497 18.36      
21 B1 1281 1157 4.49      
22 B1 966 872 165.41      
23 B1 732 661 13.53      
24 B1 247 223 0.93      
25 B1 94 85 20.64      
26 B2 3477 3140 11.38      
27 B2 3353 3027 15.62      
28 B2 3213 2901 49.46      
29 B2 1667 1505 11.72      
30 B2 1640 1481 48.45      
31 B2 1486 1341 555.01      
32 B2 1323 1194 21.99      
33 B2 1153 1041 149.02      
34 B2 1005 907 7.64      
35 B2 602 543 0.08      
36 B2 371 335 10.53      

Unscaled Zero Point Vibrational Energy (zpe) 27933.0 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 25220.7 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 HF/6-31G
ABC
0.30831 0.07397 0.06102

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

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 0.101
H3 0.000 0.910 1.990
H4 0.000 -0.910 1.990
O5 0.000 1.089 -0.699
O6 0.000 -1.089 -0.699
C7 0.000 2.410 -0.150
C8 0.000 -2.410 -0.150
H9 0.000 3.071 -0.998
H10 0.000 -3.071 -0.998
H11 -0.885 2.575 0.450
H12 0.885 2.575 0.450
H13 0.885 -2.575 0.450
H14 -0.885 -2.575 0.450

Atom - Atom Distances (Å)
  C1 C2 H3 H4 O5 O6 C7 C8 H9 H10 H11 H12 H13 H14
C11.32961.06771.06772.39252.39252.88202.88203.91543.91542.89422.89422.89422.8942
C21.32962.09642.09641.35171.35172.42292.42293.26183.26182.74502.74502.74502.7450
H31.06772.09641.81902.69553.35082.61353.94943.68794.97732.43522.43523.91133.9113
H41.06772.09641.81903.35082.69553.94942.61354.97733.68793.91133.91132.43522.4352
O52.39251.35172.69553.35082.17811.43063.54192.00444.17082.07632.07633.94063.9406
O62.39251.35173.35082.69552.17813.54191.43064.17082.00443.94063.94062.07632.0763
C72.88202.42292.61353.94941.43063.54194.81981.07535.54621.08141.08145.09825.0982
C82.88202.42293.94942.61353.54191.43064.81985.54621.07535.09825.09821.08141.0814
H93.91543.26183.68794.97732.00444.17081.07535.54626.14211.76751.76755.89545.8954
H103.91543.26184.97733.68794.17082.00445.54621.07536.14215.89545.89541.76751.7675
H112.89422.74502.43523.91132.07633.94061.08145.09821.76755.89541.76975.44555.1500
H122.89422.74502.43523.91132.07633.94061.08145.09821.76755.89541.76975.15005.4455
H132.89422.74503.91132.43523.94062.07635.09821.08145.89541.76755.44555.15001.7697
H142.89422.74503.91132.43523.94062.07635.09821.08145.89541.76755.15005.44551.7697

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 126.321 C1 C2 O6 126.321
C2 C1 H3 121.587 C2 C1 H4 121.587
C2 O5 C7 121.089 C2 O6 C8 121.089
H3 C1 H4 116.825 O5 C2 O6 107.359
O5 C7 H9 105.350 O5 C7 H11 110.722
O5 C7 H12 110.722 O6 C8 H10 105.350
O6 C8 H13 110.722 O6 C8 H14 110.722
H9 C7 H11 110.074 H9 C7 H12 110.074
H10 C8 H13 110.074 H10 C8 H14 110.074
H11 C7 H12 109.820 H13 C8 H14 109.820
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.509 -0.950    
2 C 0.825 1.040    
3 H 0.169 0.256    
4 H 0.169 0.256    
5 O -0.727 -0.645    
6 O -0.727 -0.645    
7 C -0.127 0.316    
8 C -0.127 0.316    
9 H 0.197 0.044    
10 H 0.197 0.044    
11 H 0.165 -0.008    
12 H 0.165 -0.008    
13 H 0.165 -0.008    
14 H 0.165 -0.008    


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 2.228 2.228
CHELPG 0.000 0.000 2.250 2.250
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.699 0.000 0.000
y 0.000 -23.674 0.000
z 0.000 0.000 -40.803
Traceless
 xyz
x -6.461 0.000 0.000
y 0.000 16.077 0.000
z 0.000 0.000 -9.616
Polar
3z2-r2-19.233
x2-y2-15.025
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.407 0.000 0.000
y 0.000 7.977 0.000
z 0.000 0.000 7.327


<r2> (average value of r2) Å2
<r2> 191.482
(<r2>)1/2 13.838