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

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-208.836883
Energy at 298.15K-208.843261
HF Energy-208.043187
Nuclear repulsion energy121.780593
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/aug-cc-pVTZ
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' 3748 3571 65.22      
2 A' 3551 3384 9.83      
3 A' 3199 3049 6.26      
4 A' 3088 2942 4.04      
5 A' 1727 1646 199.86      
6 A' 1503 1432 21.93      
7 A' 1447 1379 68.48      
8 A' 1391 1326 4.61      
9 A' 1251 1192 85.80      
10 A' 1107 1055 171.00      
11 A' 1024 976 44.72      
12 A' 883 841 0.95      
13 A' 548 522 39.87      
14 A' 423 403 1.79      
15 A" 3172 3023 2.40      
16 A" 1495 1424 8.59      
17 A" 1073 1023 3.63      
18 A" 850 810 24.98      
19 A" 622 593 112.32      
20 A" 526 502 20.72      
21 A" 135 129 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 16380.8 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 15609.3 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/aug-cc-pVTZ
ABC
0.36246 0.31179 0.17296

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.130 0.000
C2 0.938 -1.035 0.000
N3 0.255 1.377 0.000
O4 -1.291 -0.283 0.000
H5 1.970 -0.700 0.000
H6 0.754 -1.651 0.879
H7 0.754 -1.651 -0.879
H8 1.259 1.533 0.000
H9 -1.823 0.528 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49511.27381.35522.13792.12402.12401.88501.8657
C21.49512.50722.35191.08571.08881.08882.58773.1720
N31.27382.50722.26912.69413.19273.19271.01552.2451
O41.35522.35192.26913.28782.61232.61233.13020.9698
H52.13791.08572.69413.28781.77661.77662.34343.9869
H62.12401.08883.19272.61231.77661.75753.34123.4869
H72.12401.08883.19272.61231.77661.75753.34123.4869
H81.88502.58771.01553.13022.34343.34123.34123.2413
H91.86573.17202.24510.96983.98693.48693.48693.2413

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 110.867 C1 C2 H6 109.568
C1 C2 H7 109.568 C1 N3 H8 110.346
C1 O4 H9 105.529 C2 C1 N3 129.604
C2 C1 O4 111.102 N3 C1 O4 119.294
H5 C2 H6 109.575 H5 C2 H7 109.575
H6 C2 H7 107.627
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability