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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

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 CS 1A'
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-283.881076
Energy at 298.15K-283.888893
HF Energy-283.242087
Nuclear repulsion energy212.427787
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' 3114 3018 19.41      
2 A' 3045 2952 10.77      
3 A' 2994 2902 34.85      
4 A' 2989 2897 16.15      
5 A' 2300 2229 4.32      
6 A' 1607 1557 2.45      
7 A' 1587 1538 2.70      
8 A' 1579 1531 6.97      
9 A' 1475 1430 9.36      
10 A' 1469 1424 0.88      
11 A' 1400 1357 61.09      
12 A' 1162 1126 25.35      
13 A' 1093 1059 101.55      
14 A' 994 963 4.44      
15 A' 937 908 18.51      
16 A' 875 848 3.88      
17 A' 567 550 0.76      
18 A' 410 397 1.52      
19 A' 302 293 1.76      
20 A' 132 127 1.99      
21 A" 3123 3027 20.81      
22 A" 3019 2926 24.47      
23 A" 3017 2924 47.00      
24 A" 1563 1515 5.02      
25 A" 1331 1290 0.08      
26 A" 1281 1242 0.64      
27 A" 1208 1171 8.00      
28 A" 1075 1042 1.69      
29 A" 866 839 0.90      
30 A" 429 416 0.21      
31 A" 243 236 0.79      
32 A" 109 105 7.35      
33 A" 79 77 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 23686.6 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 22957.1 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 QCISD/3-21G
ABC
0.47374 0.04905 0.04561

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.951 2.564 0.000
C2 -1.298 1.064 0.000
O3 0.000 0.358 0.000
C4 -0.193 -1.095 0.000
C5 1.155 -1.706 0.000
N6 2.223 -2.189 0.000
H7 -1.867 3.170 0.000
H8 -0.357 2.801 0.892
H9 -0.357 2.801 -0.892
H10 -1.882 0.790 -0.895
H11 -1.882 0.790 0.895
H12 -0.747 -1.431 -0.893
H13 -0.747 -1.431 0.893

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.53972.40243.73724.76085.71511.09851.09701.09702.19422.19424.09884.0988
C21.53971.47722.42553.69934.79312.18192.16702.16701.10331.10332.70652.7065
O32.40241.47721.46602.36483.38033.37562.62502.62502.12832.12832.13462.1346
C43.73722.42551.46601.47922.65164.58244.00034.00032.68512.68511.10361.1036
C54.76083.69932.36481.47921.17245.73644.83644.83644.03144.03142.11912.1191
N65.71514.79313.38032.65161.17246.74145.68755.68755.15035.15033.19293.1929
H71.09852.18193.37564.58245.73646.74141.79191.79192.54272.54274.81904.8190
H81.09702.16702.62504.00034.83645.68751.79191.78333.09172.52334.60934.2497
H91.09702.16702.62504.00034.83645.68751.79191.78332.52333.09174.24974.6093
H102.19421.10332.12832.68514.03145.15032.54273.09172.52331.78972.49433.0690
H112.19421.10332.12832.68514.03145.15032.54272.52333.09171.78973.06902.4943
H124.09882.70652.13461.10362.11913.19294.81904.60934.24972.49433.06901.7864
H134.09882.70652.13461.10362.11913.19294.81904.24974.60933.06902.49431.7864

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.540 C1 C2 H10 111.160
C1 C2 H11 111.160 C2 C1 H7 110.476
C2 C1 H8 109.393 C2 C1 H9 109.393
C2 O3 C4 110.995 O3 C2 H10 110.288
O3 C2 H11 110.288 O3 C4 C5 106.816
O3 C4 H12 111.563 O3 C4 H13 111.563
C4 C5 N6 179.950 C5 C4 H12 109.401
C5 C4 H13 109.401 H7 C1 H8 109.406
H7 C1 H9 109.406 H8 C1 H9 108.740
H10 C2 H11 108.403 H12 C4 H13 108.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability