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

using model chemistry: MP2=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 MP2=FULL/3-21G
 hartrees
Energy at 0K-207.201497
Energy at 298.15K-207.207805
HF Energy-206.782587
Nuclear repulsion energy119.703108
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=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' 3497 3339 15.57      
2 A' 3397 3244 1.80      
3 A' 3190 3046 11.02      
4 A' 3104 2964 4.18      
5 A' 1702 1625 86.39      
6 A' 1581 1510 38.19      
7 A' 1485 1418 27.16      
8 A' 1452 1386 30.03      
9 A' 1248 1192 91.13      
10 A' 1106 1056 108.04      
11 A' 1014 968 147.39      
12 A' 835 797 0.73      
13 A' 541 517 41.17      
14 A' 408 390 3.57      
15 A" 3178 3035 5.40      
16 A" 1578 1507 7.02      
17 A" 1134 1083 9.59      
18 A" 876 837 37.42      
19 A" 644 615 169.00      
20 A" 521 498 18.58      
21 A" 106 101 1.37      

Unscaled Zero Point Vibrational Energy (zpe) 16299.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 15562.3 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=FULL/3-21G
ABC
0.34877 0.30226 0.16700

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.139 0.000
C2 1.068 -0.938 0.000
N3 0.091 1.420 0.000
O4 -1.268 -0.450 0.000
H5 2.063 -0.487 0.000
H6 0.949 -1.568 0.886
H7 0.949 -1.568 -0.886
H8 1.059 1.771 0.000
H9 -1.919 0.305 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51651.28361.39812.15602.14442.14441.94521.9259
C21.51652.55172.38601.09251.09361.09362.70883.2346
N31.28362.55172.31112.74323.23193.23191.02982.2981
O41.39812.38602.31113.33112.63582.63583.21650.9966
H52.15601.09252.74323.33111.78731.78732.47144.0597
H62.14441.09363.23192.63581.78731.77213.45603.5373
H72.14441.09363.23192.63581.78731.77213.45603.5373
H81.94522.70881.02983.21652.47143.45603.45603.3190
H91.92593.23462.29810.99664.05973.53733.53733.3190

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 110.398 C1 C2 H6 109.415
C1 C2 H7 109.415 C1 N3 H8 114.010
C1 O4 H9 105.854 C2 C1 N3 131.189
C2 C1 O4 109.830 N3 C1 O4 118.981
H5 C2 H6 109.677 H5 C2 H7 109.677
H6 C2 H7 108.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability