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

using model chemistry: MP4=FULL/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 MP4=FULL/3-21G
 hartrees
Energy at 0K-207.240092
Energy at 298.15K-207.246334
HF Energy-206.781368
Nuclear repulsion energy119.257042
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 MP4=FULL/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' 3457 3384        
2 A' 3340 3270        
3 A' 3129 3062        
4 A' 3048 2983        
5 A' 1680 1644        
6 A' 1559 1526        
7 A' 1465 1434        
8 A' 1437 1407        
9 A' 1240 1214        
10 A' 1091 1068        
11 A' 996 975        
12 A' 815 798        
13 A' 531 520        
14 A' 398 389        
15 A" 3117 3051        
16 A" 1555 1522        
17 A" 1114 1091        
18 A" 863 845        
19 A" 630 616        
20 A" 508 497        
21 A" 99 97        

Unscaled Zero Point Vibrational Energy (zpe) 16035.8 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 15695.9 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 MP4=FULL/3-21G
ABC
0.34635 0.29973 0.16572

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.141 0.000
C2 1.074 -0.940 0.000
N3 0.088 1.424 0.000
O4 -1.273 -0.453 0.000
H5 2.073 -0.485 0.000
H6 0.956 -1.572 0.890
H7 0.956 -1.572 -0.890
H8 1.058 1.779 0.000
H9 -1.924 0.304 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.52361.28641.40452.16522.15402.15401.95081.9314
C21.52362.56122.39711.09691.09791.09792.71903.2464
N31.28642.56122.31872.75393.24383.24381.03312.3035
O41.40452.39712.31873.34582.64822.64823.22780.9988
H52.16521.09692.75393.34581.79421.79422.48144.0744
H62.15401.09793.24382.64821.79421.77933.46913.5511
H72.15401.09793.24382.64821.79421.77933.46913.5511
H81.95082.71901.03313.22782.48143.46913.46913.3279
H91.93143.24642.30350.99884.07443.55113.55113.3279

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 110.373 C1 C2 H6 109.432
C1 C2 H7 109.432 C1 N3 H8 114.046
C1 O4 H9 105.717 C2 C1 N3 131.224
C2 C1 O4 109.835 N3 C1 O4 118.941
H5 C2 H6 109.662 H5 C2 H7 109.662
H6 C2 H7 108.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability