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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-51.373580
Energy at 298.15K-51.381617
HF Energy-51.373580
Nuclear repulsion energy118.364480
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/CEP-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 A' 3304 2967 64.95      
2 A' 3240 2910 51.07      
3 A' 3234 2904 45.35      
4 A' 3203 2876 64.66      
5 A' 2621 2354 6.24      
6 A' 1663 1493 2.04      
7 A' 1639 1472 1.75      
8 A' 1627 1461 3.40      
9 A' 1594 1432 3.83      
10 A' 1546 1388 75.59      
11 A' 1513 1359 74.76      
12 A' 1294 1162 243.47      
13 A' 1255 1127 43.89      
14 A' 1139 1023 22.54      
15 A' 1017 914 27.51      
16 A' 967 868 0.61      
17 A' 597 536 1.08      
18 A' 443 398 2.05      
19 A' 326 293 2.25      
20 A' 143 128 3.73      
21 A" 3318 2979 71.13      
22 A" 3285 2950 40.03      
23 A" 3240 2910 71.80      
24 A" 1611 1446 3.84      
25 A" 1416 1272 4.81      
26 A" 1381 1240 1.79      
27 A" 1285 1154 9.15      
28 A" 1127 1012 5.05      
29 A" 872 783 0.11      
30 A" 409 368 2.11      
31 A" 267 240 0.74      
32 A" 119 107 8.91      
33 A" 78 70 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 25386.5 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 22797.1 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 HF/CEP-31G*
ABC
0.51272 0.04966 0.04645

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.786 2.601 0.000
C2 -1.184 1.125 0.000
O3 0.000 0.348 0.000
C4 -0.251 -1.020 0.000
C5 1.053 -1.756 0.000
N6 2.036 -2.355 0.000
H7 -1.680 3.228 0.000
H8 -0.194 2.833 0.885
H9 -0.194 2.833 -0.885
H10 -1.781 0.884 -0.885
H11 -1.781 0.884 0.885
H12 -0.807 -1.333 -0.886
H13 -0.807 -1.333 0.886

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.52852.38633.66094.72925.70271.09161.09001.09002.17282.17284.03264.0326
C21.52851.41622.33963.64764.74082.16032.16352.16351.09451.09452.64002.6400
O32.38631.41621.39142.35273.38353.33402.64532.64532.05962.05962.06452.0645
C43.66092.33961.39141.49762.64784.48213.95453.95452.59812.59811.09171.0917
C54.72923.64762.35271.49761.15065.68384.83714.83713.97303.97302.10362.1036
N65.70274.74083.38352.64781.15066.70595.71555.71555.08325.08323.14833.1483
H71.09162.16033.33404.48215.68386.70591.77401.77402.50732.50734.72734.7273
H81.09002.16352.64533.95454.83715.71551.77401.77023.07422.51354.56844.2111
H91.09002.16352.64533.95454.83715.71551.77401.77022.51353.07424.21114.5684
H102.17281.09452.05962.59813.97305.08322.50733.07422.51351.77012.42143.0001
H112.17281.09452.05962.59813.97305.08322.50732.51353.07421.77013.00012.4214
H124.03262.64002.06451.09172.10363.14834.72734.56844.21112.42143.00011.7723
H134.03262.64002.06451.09172.10363.14834.72734.21114.56843.00012.42141.7723

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 108.205 C1 C2 H10 110.773
C1 C2 H11 110.773 C2 C1 H7 109.954
C2 C1 H8 110.306 C2 C1 H9 110.306
C2 O3 C4 112.882 O3 C2 H10 109.576
O3 C2 H11 109.576 O3 C4 C5 108.997
O3 C4 H12 111.927 O3 C4 H13 111.927
C4 C5 N6 178.050 C5 C4 H12 107.640
C5 C4 H13 107.640 H7 C1 H8 108.818
H7 C1 H9 108.818 H8 C1 H9 108.597
H10 C2 H11 107.930 H12 C4 H13 108.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability