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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-207.215616
Energy at 298.15K-207.221912
HF Energy-206.783336
Nuclear repulsion energy119.784053
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 CCD/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' 3536 3382 8.67      
2 A' 3375 3228 1.97      
3 A' 3138 3001 13.01      
4 A' 3059 2926 5.16      
5 A' 1756 1679 98.44      
6 A' 1567 1499 26.98      
7 A' 1478 1414 42.02      
8 A' 1460 1396 13.66      
9 A' 1275 1219 95.03      
10 A' 1107 1059 125.37      
11 A' 1018 974 122.52      
12 A' 834 798 0.97      
13 A' 543 520 41.23      
14 A' 406 388 3.51      
15 A" 3124 2988 7.40      
16 A" 1558 1490 6.52      
17 A" 1128 1079 11.03      
18 A" 896 857 39.68      
19 A" 615 588 156.55      
20 A" 511 489 28.82      
21 A" 114 109 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 16247.7 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 15540.9 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 CCD/3-21G*
ABC
0.34880 0.30289 0.16724

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.142 0.000
C2 1.051 -0.956 0.000
N3 0.122 1.411 0.000
O4 -1.279 -0.422 0.000
H5 2.059 -0.525 0.000
H6 0.918 -1.586 0.889
H7 0.918 -1.586 -0.889
H8 1.097 1.745 0.000
H9 -1.922 0.334 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51981.27521.39782.16382.14902.14901.94221.9313
C21.51982.54302.38991.09611.09741.09742.70103.2406
N31.27522.54302.30762.73833.22593.22591.03052.3101
O41.39782.38992.30763.33882.64012.64013.21570.9931
H52.16381.09612.73833.33881.79341.79342.46454.0719
H62.14901.09743.22592.64011.79341.77773.45163.5415
H72.14901.09743.22592.64011.79341.77773.45163.5415
H81.94222.70101.03053.21572.46453.45163.45163.3320
H91.93133.24062.31010.99314.07193.54153.54153.3320

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 110.570 C1 C2 H6 109.332
C1 C2 H7 109.332 C1 N3 H8 114.358
C1 O4 H9 106.535 C2 C1 N3 130.767
C2 C1 O4 109.926 N3 C1 O4 119.308
H5 C2 H6 109.689 H5 C2 H7 109.689
H6 C2 H7 108.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability