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

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-206.786912
Energy at 298.15K-206.793431
HF Energy-206.786912
Nuclear repulsion energy121.841504
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/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' 3876 3499 55.12      
2 A' 3678 3320 4.26      
3 A' 3303 2981 13.74      
4 A' 3221 2907 4.20      
5 A' 1913 1727 212.79      
6 A' 1646 1485 35.81      
7 A' 1578 1424 47.61      
8 A' 1532 1383 43.05      
9 A' 1344 1213 119.16      
10 A' 1169 1055 140.59      
11 A' 1099 992 160.76      
12 A' 893 806 0.29      
13 A' 580 524 48.01      
14 A' 434 391 3.05      
15 A" 3279 2960 5.53      
16 A" 1643 1483 7.69      
17 A" 1214 1096 25.95      
18 A" 957 864 53.74      
19 A" 670 605 172.54      
20 A" 554 500 60.95      
21 A" 137 124 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 17358.9 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 15668.1 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/3-21G*
ABC
0.36097 0.31251 0.17279

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.143 0.000
C2 1.011 -0.968 0.000
N3 0.161 1.380 0.000
O4 -1.266 -0.375 0.000
H5 2.020 -0.582 0.000
H6 0.858 -1.589 0.874
H7 0.858 -1.589 -0.874
H8 1.112 1.713 0.000
H9 -1.916 0.342 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50231.24801.36812.14622.12092.12091.92441.9265
C21.50232.49762.35331.08031.08291.08292.68333.2073
N31.24802.49762.26282.70293.17253.17251.00762.3224
O41.36812.35332.26283.29272.59782.59783.16530.9682
H52.14621.08032.70293.29271.76871.76872.46804.0433
H62.12091.08293.17252.59781.76871.74853.42503.4912
H72.12091.08293.17252.59781.76871.74853.42503.4912
H81.92442.68331.00763.16532.46803.42503.42503.3244
H91.92653.20732.32240.96824.04333.49123.49123.3244

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 111.354 C1 C2 H6 109.174
C1 C2 H7 109.174 C1 N3 H8 116.712
C1 O4 H9 109.918 C2 C1 N3 130.266
C2 C1 O4 110.053 N3 C1 O4 119.681
H5 C2 H6 109.694 H5 C2 H7 109.694
H6 C2 H7 107.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.689      
2 C -0.644      
3 N -0.749      
4 O -0.710      
5 H 0.213      
6 H 0.251      
7 H 0.251      
8 H 0.290      
9 H 0.407      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.619 -0.593 0.000 1.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.059 -0.781 0.000
y -0.781 -27.375 0.000
z 0.000 0.000 -24.680
Traceless
 xyz
x 5.969 -0.781 0.000
y -0.781 -5.006 0.000
z 0.000 0.000 -0.963
Polar
3z2-r2-1.925
x2-y27.316
xy-0.781
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.219 0.321 0.000
y 0.321 4.985 0.000
z 0.000 0.000 2.280


<r2> (average value of r2) Å2
<r2> 74.797
(<r2>)1/2 8.649