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: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-209.028085
Energy at 298.15K-209.034454
HF Energy-209.028085
Nuclear repulsion energy121.080004
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 B1B95/6-31G
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' 3671 3501 28.85      
2 A' 3542 3378 4.96      
3 A' 3202 3054 11.69      
4 A' 3093 2950 4.63      
5 A' 1774 1692 193.15      
6 A' 1528 1458 29.75      
7 A' 1473 1405 64.86      
8 A' 1432 1366 4.43      
9 A' 1249 1191 111.77      
10 A' 1089 1038 160.07      
11 A' 1032 984 90.23      
12 A' 890 849 1.40      
13 A' 545 520 47.74      
14 A' 419 400 3.35      
15 A" 3175 3028 5.09      
16 A" 1518 1447 11.56      
17 A" 1111 1060 15.91      
18 A" 868 828 41.34      
19 A" 659 629 200.03      
20 A" 535 510 22.42      
21 A" 123 117 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 16463.4 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 15701.2 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 B1B95/6-31G
ABC
0.35770 0.30897 0.17102

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.129 0.000
C2 1.033 -0.948 0.000
N3 0.126 1.398 0.000
O4 -1.265 -0.405 0.000
H5 2.038 -0.528 0.000
H6 0.909 -1.583 0.879
H7 0.909 -1.583 -0.879
H8 1.087 1.735 0.000
H9 -1.914 0.326 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.49251.27461.37272.14172.12842.12841.93911.9237
C21.49252.51442.36121.08901.09191.09192.68283.2104
N31.27462.51442.27682.71353.20433.20431.01832.3047
O41.37272.36122.27683.30522.62382.62383.17950.9772
H52.14171.08902.71353.30521.77811.77812.45444.0432
H62.12841.09193.20432.62381.77811.75853.43673.5188
H72.12841.09193.20432.62381.77811.75853.43673.5188
H81.93912.68281.01833.17952.45443.43673.43673.3154
H91.92373.21042.30470.97724.04323.51883.51883.3154

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 111.161 C1 C2 H6 109.921
C1 C2 H7 109.921 C1 N3 H8 115.029
C1 O4 H9 108.731 C2 C1 N3 130.480
C2 C1 O4 110.927 N3 C1 O4 118.593
H5 C2 H6 109.239 H5 C2 H7 109.239
H6 C2 H7 107.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.357      
2 C -0.483      
3 N -0.529      
4 O -0.584      
5 H 0.165      
6 H 0.201      
7 H 0.201      
8 H 0.275      
9 H 0.397      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.584 -0.606 0.000 1.696
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.746 -0.609 0.000
y -0.609 -27.186 0.000
z 0.000 0.000 -24.716
Traceless
 xyz
x 6.205 -0.609 0.000
y -0.609 -4.955 0.000
z 0.000 0.000 -1.250
Polar
3z2-r2-2.501
x2-y27.440
xy-0.609
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.915 0.266 0.000
y 0.266 5.654 0.000
z 0.000 0.000 2.642


<r2> (average value of r2) Å2
<r2> 75.302
(<r2>)1/2 8.678