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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-281.614560
Energy at 298.15K-281.622022
HF Energy-281.242955
Nuclear repulsion energy209.707893
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/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 A' 3563 3107 0.97      
2 A' 3382 2949 0.85      
3 A' 3330 2904 10.21      
4 A' 3318 2893 6.07      
5 A' 2112 1841 56.70      
6 A' 1739 1516 1.77      
7 A' 1718 1498 3.25      
8 A' 1696 1479 0.54      
9 A' 1616 1409 2.11      
10 A' 1562 1361 12.56      
11 A' 1497 1306 75.48      
12 A' 1284 1120 9.22      
13 A' 1237 1079 7.43      
14 A' 1141 995 2.15      
15 A' 1015 885 0.71      
16 A' 966 842 1.41      
17 A' 549 479 0.19      
18 A' 444 387 0.45      
19 A' 304 265 1.04      
20 A' 132 115 1.79      
21 A" 3567 3110 1.25      
22 A" 3437 2997 11.80      
23 A" 3419 2981 6.50      
24 A" 1717 1497 1.22      
25 A" 1416 1234 0.54      
26 A" 1335 1164 1.55      
27 A" 1265 1103 9.03      
28 A" 1095 955 2.16      
29 A" 899 784 0.37      
30 A" 347 303 0.75      
31 A" 212 185 0.24      
32 A" 127 110 3.78      
33 A" 88 77 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 25764.8 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 22464.3 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/STO-3G
ABC
0.50554 0.04691 0.04403

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.363 2.439 0.000
C2 -1.391 0.880 0.000
O3 0.000 0.412 0.000
C4 -0.052 -1.054 0.000
C5 1.376 -1.574 0.000
N6 2.527 -2.000 0.000
H7 -2.393 2.833 0.000
H8 -0.839 2.813 0.896
H9 -0.839 2.813 -0.896
H10 -1.938 0.507 -0.899
H11 -1.938 0.507 0.899
H12 -0.579 -1.455 -0.901
H13 -0.579 -1.455 0.901

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.55902.44213.73034.85805.90161.10321.10281.10282.20682.20684.07264.0726
C21.55901.46802.35243.69884.86272.19502.20062.20061.11611.11612.63132.6313
O32.44211.46801.46692.41613.49323.40412.69632.69632.13862.13862.15272.1527
C43.73032.35241.46691.52012.74694.53754.04634.04632.60802.60801.11861.1186
C54.85803.69882.41611.52011.22685.79894.99514.99514.01554.01552.15682.1568
N65.90164.86273.49322.74691.22686.89655.94095.94095.19905.19903.27983.2798
H71.10322.19503.40414.53755.79896.89651.79341.79342.53482.53484.74234.7423
H81.10282.20062.69634.04634.99515.94091.79341.79153.12152.55424.63794.2756
H91.10282.20062.69634.04634.99515.94091.79341.79152.55423.12154.27564.6379
H102.20681.11612.13862.60804.01555.19902.53483.12152.55421.79732.38672.9893
H112.20681.11612.13862.60804.01555.19902.53482.55423.12151.79732.98932.3867
H124.07262.63132.15271.11862.15683.27984.74234.63794.27562.38672.98931.8026
H134.07262.63132.15271.11862.15683.27984.74234.27564.63792.98932.38671.8026

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.525 C1 C2 H10 110.067
C1 C2 H11 110.067 C2 C1 H7 109.898
C2 C1 H8 110.359 C2 C1 H9 110.359
C2 O3 C4 106.548 O3 C2 H10 110.973
O3 C2 H11 110.973 O3 C4 C5 107.955
O3 C4 H12 112.030 O3 C4 H13 112.030
C4 C5 N6 179.649 C5 C4 H12 108.687
C5 C4 H13 108.687 H7 C1 H8 108.774
H7 C1 H9 108.774 H8 C1 H9 108.634
H10 C2 H11 107.254 H12 C4 H13 107.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability