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All results from a given calculation for C4H7NO (Ethoxyacetonitrile)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-284.648294
Energy at 298.15K-284.656042
HF Energy-284.648294
Nuclear repulsion energy212.764491
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 PBEPBE/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' 3081 3053 14.66      
2 A' 3003 2976 8.83      
3 A' 2912 2886 48.82      
4 A' 2896 2870 20.00      
5 A' 2271 2251 0.38      
6 A' 1540 1526 3.95      
7 A' 1523 1509 4.20      
8 A' 1509 1495 10.49      
9 A' 1410 1398 16.46      
10 A' 1405 1392 0.99      
11 A' 1328 1316 46.37      
12 A' 1121 1111 31.41      
13 A' 1041 1032 121.18      
14 A' 983 974 13.83      
15 A' 935 926 6.52      
16 A' 857 849 6.64      
17 A' 577 572 0.59      
18 A' 402 399 1.24      
19 A' 299 297 1.52      
20 A' 128 127 1.86      
21 A" 3087 3059 16.99      
22 A" 2943 2916 46.36      
23 A" 2915 2889 37.30      
24 A" 1502 1489 8.66      
25 A" 1276 1265 0.00      
26 A" 1227 1216 0.51      
27 A" 1149 1138 7.18      
28 A" 1020 1011 0.13      
29 A" 843 835 2.72      
30 A" 453 449 0.00      
31 A" 230 228 0.39      
32 A" 115 114 6.03      
33 A" 73 72 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 23028.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 22818.5 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 PBEPBE/3-21G
ABC
0.48890 0.04908 0.04578

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.113 2.495 0.000
C2 -1.346 0.982 0.000
O3 0.000 0.375 0.000
C4 -0.115 -1.085 0.000
C5 1.239 -1.637 0.000
N6 2.330 -2.077 0.000
H7 -2.076 3.031 0.000
H8 -0.537 2.780 0.895
H9 -0.537 2.780 -0.895
H10 -1.916 0.666 -0.900
H11 -1.916 0.666 0.900
H12 -0.660 -1.459 -0.896
H13 -0.660 -1.459 0.896

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 N6 H7 H8 H9 H10 H11 H12 H13
C11.53022.39373.71594.75395.72311.10301.10201.10202.19052.19054.07874.0787
C21.53021.47632.40583.67984.78232.17562.16522.16521.11121.11122.68912.6891
O32.39371.47631.46472.36303.38283.37142.62162.62162.13682.13682.14522.1452
C43.71592.40581.46471.46242.63854.55973.98973.98972.66832.66831.11331.1133
C54.75393.67982.36301.46241.17615.72584.84414.84414.00874.00872.10742.1074
N65.72314.78233.38282.63851.17616.74635.71105.71105.13465.13463.18163.1816
H71.10302.17563.37144.55975.72586.74631.79821.79822.53582.53584.79284.7928
H81.10202.16522.62163.98974.84415.71101.79821.79053.09722.52404.60344.2405
H91.10202.16522.62163.98974.84415.71101.79821.79052.52403.09724.24054.6034
H102.19051.11122.13682.66834.00875.13462.53583.09722.52401.79952.46843.0526
H112.19051.11122.13682.66834.00875.13462.53582.52403.09721.79953.05262.4684
H124.07872.68912.14521.11332.10743.18164.79284.60344.24052.46843.05261.7923
H134.07872.68912.14521.11332.10743.18164.79284.24054.60343.05262.46841.7923

picture of Ethoxyacetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 105.514 C1 C2 H10 111.055
C1 C2 H11 111.055 C2 C1 H7 110.372
C2 C1 H8 109.610 C2 C1 H9 109.610
C2 O3 C4 109.767 O3 C2 H10 110.548
O3 C2 H11 110.548 O3 C4 C5 107.663
O3 C4 H12 111.905 O3 C4 H13 111.905
C4 C5 N6 179.836 C5 C4 H12 109.053
C5 C4 H13 109.053 H7 C1 H8 109.280
H7 C1 H9 109.280 H8 C1 H9 108.660
H10 C2 H11 108.137 H12 C4 H13 107.208
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability