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: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-209.138718
Energy at 298.15K-209.144940
HF Energy-209.138718
Nuclear repulsion energy120.547558
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 BLYP/6-31G(2df,p)
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' 3587 3567 22.26      
2 A' 3389 3371 0.65      
3 A' 3069 3052 13.92      
4 A' 2974 2958 8.11      
5 A' 1673 1663 181.91      
6 A' 1447 1439 22.76      
7 A' 1393 1385 45.99      
8 A' 1353 1345 2.22      
9 A' 1227 1220 82.97      
10 A' 1070 1064 147.67      
11 A' 980 975 49.28      
12 A' 835 831 2.01      
13 A' 531 528 34.32      
14 A' 406 404 1.29      
15 A" 3030 3013 8.98      
16 A" 1436 1428 5.54      
17 A" 1036 1030 6.07      
18 A" 816 812 17.20      
19 A" 624 620 111.85      
20 A" 508 505 11.98      
21 A" 108 108 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 15745.8 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 15659.2 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 BLYP/6-31G(2df,p)
ABC
0.35658 0.30421 0.16937

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.135 0.000
C2 0.947 -1.048 0.000
N3 0.254 1.391 0.000
O4 -1.303 -0.285 0.000
H5 1.993 -0.716 0.000
H6 0.769 -1.678 0.885
H7 0.769 -1.678 -0.885
H8 1.266 1.562 0.000
H9 -1.836 0.537 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51531.28131.36872.16722.15912.15911.90781.8795
C21.51532.53532.37581.09731.10141.10142.62923.2029
N31.28132.53532.28712.73193.23533.23531.02672.2574
O41.36872.37582.28713.32392.64862.64863.16390.9799
H52.16721.09732.73193.32391.79151.79152.39094.0289
H62.15911.10143.23532.64861.79151.77083.39553.5319
H72.15911.10143.23532.64861.79151.77083.39553.5319
H81.90782.62921.02673.16392.39093.39553.39553.2670
H91.87953.20292.25740.97994.02893.53193.53193.2670

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 111.081 C1 C2 H6 110.194
C1 C2 H7 110.194 C1 N3 H8 111.021
C1 O4 H9 105.104 C2 C1 N3 129.881
C2 C1 O4 110.828 N3 C1 O4 119.291
H5 C2 H6 109.134 H5 C2 H7 109.134
H6 C2 H7 107.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.364      
2 C -0.410      
3 N -0.488      
4 O -0.328      
5 H 0.113      
6 H 0.134      
7 H 0.134      
8 H 0.201      
9 H 0.281      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.909 -0.994 0.000 1.347
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.273 -1.173 0.000
y -1.173 -26.685 0.000
z 0.000 0.000 -24.504
Traceless
 xyz
x 5.322 -1.173 0.000
y -1.173 -4.297 0.000
z 0.000 0.000 -1.025
Polar
3z2-r2-2.050
x2-y26.413
xy-1.173
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.601 0.154 0.000
y 0.154 5.984 0.000
z 0.000 0.000 3.355


<r2> (average value of r2) Å2
<r2> 75.745
(<r2>)1/2 8.703