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All results from a given calculation for CH3C(OH)=NH (Ethaninidic acid)

using model chemistry: MP2/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 MP2/CEP-31G
 hartrees
Energy at 0K-39.524521
Energy at 298.15K-39.530743
HF Energy-39.153071
Nuclear repulsion energy66.293222
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/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' 3644 3521 33.76      
2 A' 3472 3355 6.74      
3 A' 3172 3065 31.32      
4 A' 3057 2954 17.32      
5 A' 1640 1584 125.76      
6 A' 1515 1464 37.28      
7 A' 1463 1414 28.92      
8 A' 1394 1347 16.15      
9 A' 1225 1183 80.59      
10 A' 1081 1044 109.43      
11 A' 1010 976 164.56      
12 A' 834 806 5.82      
13 A' 510 493 47.89      
14 A' 397 384 3.81      
15 A" 3163 3057 21.09      
16 A" 1499 1448 10.76      
17 A" 1104 1066 6.18      
18 A" 851 822 45.47      
19 A" 607 586 219.86      
20 A" 494 477 7.89      
21 A" 121 117 1.38      

Unscaled Zero Point Vibrational Energy (zpe) 16125.7 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 15582.3 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/CEP-31G
ABC
0.33717 0.28908 0.16045

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.134 0.000
C2 1.120 -0.923 0.000
N3 0.042 1.457 0.000
O4 -1.275 -0.492 0.000
H5 2.114 -0.432 0.000
H6 1.024 -1.567 0.897
H7 1.024 -1.567 -0.897
H8 1.007 1.833 0.000
H9 -1.977 0.209 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.54011.32391.42052.18792.17822.17821.97561.9784
C21.54012.61322.43421.10841.10851.10852.75883.2978
N31.32392.61322.35192.80353.30343.30341.03642.3730
O41.42052.43422.35193.38952.69192.69193.25820.9918
H52.18791.10842.80353.38951.81171.81172.52064.1405
H62.17821.10853.30342.69191.81171.79463.51653.6005
H72.17821.10853.30342.69191.81171.79463.51653.6005
H81.97562.75881.03643.25822.52063.51653.51653.3975
H91.97843.29782.37300.99184.14053.60053.60053.3975

picture of Ethaninidic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.334 C1 C2 H6 109.575
C1 C2 H7 109.575 C1 N3 H8 113.090
C1 O4 H9 108.906 C2 C1 N3 131.535
C2 C1 O4 110.546 N3 C1 O4 117.919
H5 C2 H6 109.615 H5 C2 H7 109.615
H6 C2 H7 108.091
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability