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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-283.843141
Energy at 298.15K-283.850967
HF Energy-283.239773
Nuclear repulsion energy212.420245
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 MP2/3-21G*
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' 3180 3025 15.92      
2 A' 3104 2953 9.26      
3 A' 3045 2896 44.33      
4 A' 3043 2895 7.35      
5 A' 2156 2051 14.38      
6 A' 1629 1550 2.27      
7 A' 1608 1530 0.99      
8 A' 1604 1526 8.52      
9 A' 1494 1422 10.07      
10 A' 1484 1412 1.53      
11 A' 1415 1347 58.69      
12 A' 1173 1116 19.89      
13 A' 1090 1037 108.00      
14 A' 1003 954 7.09      
15 A' 941 895 13.56      
16 A' 877 834 5.56      
17 A' 566 538 0.68      
18 A' 411 391 1.37      
19 A' 302 287 1.84      
20 A' 131 125 1.88      
21 A" 3193 3037 17.30      
22 A" 3081 2931 32.31      
23 A" 3076 2926 39.86      
24 A" 1588 1511 5.49      
25 A" 1350 1284 0.02      
26 A" 1292 1229 0.56      
27 A" 1221 1161 7.81      
28 A" 1087 1034 1.42      
29 A" 879 836 1.14      
30 A" 425 405 0.08      
31 A" 253 240 0.75      
32 A" 108 103 7.15      
33 A" 78 75 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 23943.1 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 22777.1 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 MP2/3-21G*
ABC
0.47533 0.04905 0.04561

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.981 2.549 0.000
C2 -1.309 1.051 0.000
O3 0.000 0.362 0.000
C4 -0.182 -1.096 0.000
C5 1.166 -1.691 0.000
N6 2.252 -2.169 0.000
H7 -1.901 3.143 0.000
H8 -0.393 2.792 0.888
H9 -0.393 2.792 -0.888
H10 -1.888 0.771 -0.891
H11 -1.888 0.771 0.891
H12 -0.734 -1.432 -0.890
H13 -0.734 -1.432 0.890

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.53342.39693.73164.75245.71931.09461.09251.09252.18602.18604.08684.0868
C21.53341.47882.42463.69324.80042.17402.15812.15811.09941.09942.69952.6995
O32.39691.47881.46932.36083.38773.36822.61672.61672.12732.12732.13292.1329
C43.73162.42461.46931.47302.65974.57403.99353.99352.68142.68141.09991.0999
C54.75243.69322.36081.47301.18675.72424.82844.82844.02224.02222.11372.1137
N65.71934.80043.38772.65971.18676.74225.69155.69155.15495.15493.20153.2015
H71.09462.17403.36824.57405.72426.74221.78471.78472.53392.53394.80434.8043
H81.09252.15812.61673.99354.82845.69151.78471.77653.07992.51364.59554.2375
H91.09252.15812.61673.99354.82845.69151.78471.77652.51363.07994.23754.5955
H102.18601.09942.12732.68144.02225.15492.53393.07992.51361.78292.48673.0590
H112.18601.09942.12732.68144.02225.15492.53392.51363.07991.78293.05902.4867
H124.08682.69952.13291.09992.11373.20154.80434.59554.23752.48673.05901.7800
H134.08682.69952.13291.09992.11373.20154.80434.23754.59553.05902.48671.7800

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.435 C1 C2 H10 111.187
C1 C2 H11 111.187 C2 C1 H7 110.517
C2 C1 H8 109.392 C2 C1 H9 109.392
C2 O3 C4 110.659 O3 C2 H10 110.333
O3 C2 H11 110.333 O3 C4 C5 106.714
O3 C4 H12 111.422 O3 C4 H13 111.422
C4 C5 N6 179.936 C5 C4 H12 109.621
C5 C4 H13 109.621 H7 C1 H8 109.368
H7 C1 H9 109.368 H8 C1 H9 108.777
H10 C2 H11 108.365 H12 C4 H13 108.029
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability