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

using model chemistry: MP2/CEP-121G*

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-121G*
 hartrees
Energy at 0K-39.875121
Energy at 298.15K-39.881411
HF Energy-39.266763
Nuclear repulsion energy67.964808
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-121G*
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' 3711 3536 48.16      
2 A' 3530 3363 4.01      
3 A' 3202 3051 13.18      
4 A' 3086 2941 8.01      
5 A' 1714 1633 181.30      
6 A' 1524 1452 25.43      
7 A' 1467 1398 60.53      
8 A' 1410 1344 6.48      
9 A' 1284 1223 90.11      
10 A' 1126 1073 185.65      
11 A' 1033 984 50.58      
12 A' 871 829 0.72      
13 A' 541 516 42.81      
14 A' 420 400 2.41      
15 A" 3183 3033 7.27      
16 A" 1508 1437 10.36      
17 A" 1079 1028 2.81      
18 A" 845 806 30.15      
19 A" 609 581 162.81      
20 A" 503 479 9.55      
21 A" 113 107 1.18      

Unscaled Zero Point Vibrational Energy (zpe) 16379.3 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 15606.2 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-121G*
ABC
0.35609 0.30366 0.16908

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
C2 0.987 -1.015 0.000
N3 0.199 1.405 0.000
O4 -1.291 -0.337 0.000
H5 2.013 -0.640 0.000
H6 0.824 -1.637 0.885
H7 0.824 -1.637 -0.885
H8 1.204 1.595 0.000
H9 -1.850 0.467 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51341.28861.37352.15592.14242.14241.89481.8805
C21.51342.54552.37721.09181.09381.09382.61903.2014
N31.28862.54552.29212.73413.22923.22921.02312.2536
O41.37352.37722.29213.31782.63522.63523.15550.9793
H52.15591.09182.73413.31781.78621.78622.37724.0188
H62.14241.09383.22922.63521.78621.76933.37253.5155
H72.14241.09383.22922.63521.78621.76933.37253.5155
H81.89482.61901.02313.15552.37723.37253.37253.2560
H91.88053.20142.25360.97934.01883.51553.51553.2560

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 110.650 C1 C2 H6 109.464
C1 C2 H7 109.464 C1 N3 H8 109.563
C1 O4 H9 104.878 C2 C1 N3 130.408
C2 C1 O4 110.768 N3 C1 O4 118.824
H5 C2 H6 109.628 H5 C2 H7 109.628
H6 C2 H7 107.958
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability