return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-208.051023
Energy at 298.15K-208.057613
HF Energy-208.051023
Nuclear repulsion energy123.119281
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 HF/Def2TZVPP
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' 4121 3735 98.80      
2 A' 3780 3427 10.81      
3 A' 3274 2968 19.85      
4 A' 3185 2887 8.38      
5 A' 1895 1718 341.18      
6 A' 1602 1452 25.17      
7 A' 1569 1422 77.74      
8 A' 1508 1367 12.57      
9 A' 1371 1243 95.19      
10 A' 1205 1092 197.87      
11 A' 1111 1007 49.25      
12 A' 930 843 0.53      
13 A' 598 542 42.39      
14 A' 458 415 1.72      
15 A" 3245 2941 11.84      
16 A" 1592 1443 7.19      
17 A" 1172 1063 9.07      
18 A" 929 842 36.61      
19 A" 667 604 105.21      
20 A" 557 505 57.96      
21 A" 152 138 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 17461.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 15826.6 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 HF/Def2TZVPP
ABC
0.37117 0.31635 0.17628

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.136 0.000
C2 0.865 -1.088 0.000
N3 0.347 1.334 0.000
O4 -1.295 -0.184 0.000
H5 1.911 -0.825 0.000
H6 0.643 -1.687 0.874
H7 0.643 -1.687 -0.874
H8 1.340 1.438 0.000
H9 -1.798 0.614 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49861.24721.33382.13932.12132.12131.86841.8607
C21.49862.47642.34111.07921.08241.08242.57063.1605
N31.24722.47642.23632.66573.15853.15850.99782.2631
O41.33382.34112.23633.26962.60322.60323.09400.9438
H52.13931.07922.66573.26961.76531.76532.33433.9790
H62.12131.08243.15852.60321.76531.74773.31923.4666
H72.12131.08243.15852.60321.76531.74773.31923.4666
H81.86842.57060.99783.09402.33433.31923.31923.2444
H91.86073.16052.26310.94383.97903.46663.46663.2444

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 111.129 C1 C2 H6 109.488
C1 C2 H7 109.488 C1 N3 H8 112.189
C1 O4 H9 108.354 C2 C1 N3 128.584
C2 C1 O4 111.358 N3 C1 O4 120.057
H5 C2 H6 109.502 H5 C2 H7 109.502
H6 C2 H7 107.665
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.367      
2 C -0.147      
3 N -0.440      
4 O -0.390      
5 H 0.061      
6 H 0.079      
7 H 0.079      
8 H 0.156      
9 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.069 -1.322 0.000 1.700
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.423 -1.836 0.000
y -1.836 -27.472 0.000
z 0.000 0.000 -25.029
Traceless
 xyz
x 5.828 -1.836 0.000
y -1.836 -4.746 0.000
z 0.000 0.000 -1.081
Polar
3z2-r2-2.163
x2-y27.049
xy-1.836
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.189 0.231 0.000
y 0.231 5.992 0.000
z 0.000 0.000 3.799


<r2> (average value of r2) Å2
<r2> 73.717
(<r2>)1/2 8.586