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All results from a given calculation for C2H3OC2H5 (Ethene, ethoxy-)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-230.202911
Energy at 298.15K-230.211301
HF Energy-229.670200
Nuclear repulsion energy170.955339
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 QCISD/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3238 3139 8.62      
2 A 3154 3057 1.10      
3 A 3122 3026 24.30      
4 A 3111 3015 23.18      
5 A 3102 3007 20.38      
6 A 3043 2950 13.24      
7 A 3040 2946 37.71      
8 A 3000 2908 32.33      
9 A 1699 1646 66.67      
10 A 1600 1551 7.27      
11 A 1580 1531 5.61      
12 A 1564 1516 4.42      
13 A 1494 1448 0.22      
14 A 1474 1429 8.57      
15 A 1426 1382 68.87      
16 A 1368 1326 1.57      
17 A 1331 1290 0.18      
18 A 1210 1173 20.09      
19 A 1174 1138 57.46      
20 A 1150 1114 80.26      
21 A 1066 1033 82.66      
22 A 994 963 25.81      
23 A 969 939 7.94      
24 A 889 862 54.82      
25 A 862 836 0.96      
26 A 831 806 6.19      
27 A 719 697 2.31      
28 A 484 469 1.86      
29 A 420 407 2.96      
30 A 251 243 1.09      
31 A 220 213 1.46      
32 A 84 81 0.42      
33 A 70 68 5.31      

Unscaled Zero Point Vibrational Energy (zpe) 24869.0 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 24103.0 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 QCISD/3-21G
ABC
0.75019 0.07626 0.07249

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.462 -0.273 0.118
H2 -2.470 -1.312 0.437
H3 -3.414 0.244 0.026
C4 -1.312 0.348 -0.178
H5 -1.272 1.393 -0.497
O6 -0.073 -0.333 -0.151
C7 1.073 0.518 0.240
H8 1.010 0.774 1.308
H9 1.066 1.454 -0.345
C10 2.331 -0.315 -0.063
H11 2.295 -1.250 0.509
H12 2.357 -0.557 -1.133
H13 3.238 0.243 0.208

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 O6 C7 H8 H9 C10 H11 H12 H13
C11.08741.08701.33962.13782.40553.62463.81693.95574.79674.87244.98715.7243
H21.08741.86622.11513.10282.65593.99294.15004.55744.92904.76615.13205.9207
H31.08701.86622.11402.48633.39554.50034.63614.65575.77275.92115.94076.6545
C41.33962.11512.11401.09391.41432.42752.78982.62883.70474.00483.89814.5679
H52.13783.10282.48631.09392.12992.60892.97442.34434.01074.55224.16884.7074
O62.40552.65593.39551.41432.12991.47942.12742.12742.40512.62352.63023.3794
C73.62463.99294.50032.42752.60891.47941.10061.10301.53892.16662.16552.1828
H83.81694.15004.63612.78982.97442.12741.10061.78832.19362.52813.08982.5414
H93.95574.55744.65572.62882.34432.12741.10301.78832.19193.09022.51572.5468
C104.79674.92905.77273.70474.01072.40511.53892.19362.19191.09711.09711.0988
H114.87244.76615.92114.00484.55222.62352.16662.52813.09021.09711.78281.7916
H124.98715.13205.94073.89814.16882.63022.16553.08982.51571.09711.78281.7926
H135.72435.92076.65454.56794.70743.37942.18282.54142.54681.09881.79161.7926

picture of Ethene, ethoxy- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 122.596 C1 C4 O6 121.704
H2 C1 H3 118.238 H2 C1 C4 120.913
H3 C1 C4 120.838 C4 O6 C7 114.028
H5 C4 O6 115.648 O6 C7 H8 110.224
O6 C7 H9 110.077 O6 C7 C10 105.644
C7 C10 H11 109.419 C7 C10 H12 109.334
C7 C10 H13 110.591 H8 C7 H9 108.491
H8 C7 C10 111.337 H9 C7 C10 111.057
H11 C10 H12 108.681 H11 C10 H13 109.348
H12 C10 H13 109.438
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability