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

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-39.168604
Energy at 298.15K-39.175160
HF Energy-39.168604
Nuclear repulsion energy68.200415
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/CEP-121G
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' 4012 3661 65.28      
2 A' 3734 3407 13.22      
3 A' 3286 2998 26.68      
4 A' 3179 2901 13.45      
5 A' 1838 1678 286.02      
6 A' 1622 1480 36.23      
7 A' 1575 1437 47.29      
8 A' 1514 1381 24.62      
9 A' 1336 1219 107.38      
10 A' 1171 1069 180.59      
11 A' 1113 1016 129.11      
12 A' 914 834 1.40      
13 A' 563 513 54.20      
14 A' 440 402 3.24      
15 A" 3273 2987 17.38      
16 A" 1612 1471 10.80      
17 A" 1197 1092 13.04      
18 A" 947 864 68.05      
19 A" 657 600 201.99      
20 A" 555 507 52.21      
21 A" 147 135 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 17341.9 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 15824.5 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/CEP-121G
ABC
0.35610 0.30613 0.16974

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
C2 1.014 -0.985 0.000
N3 0.174 1.394 0.000
O4 -1.283 -0.360 0.000
H5 2.023 -0.593 0.000
H6 0.869 -1.607 0.876
H7 0.869 -1.607 -0.876
H8 1.131 1.702 0.000
H9 -1.930 0.342 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50901.27341.37412.14872.13272.13271.93511.9418
C21.50902.52302.38041.08261.08391.08392.69023.2298
N31.27342.52302.28012.71353.20273.20271.00562.3527
O41.37412.38042.28013.31382.63682.63683.17510.9552
H52.14871.08262.71353.31381.76871.76872.46214.0623
H62.13271.08393.20272.63681.76871.75113.43383.5219
H72.13271.08393.20272.63681.76871.75113.43383.5219
H81.93512.69021.00563.17512.46213.43383.43383.3502
H91.94183.22982.35270.95524.06233.52193.52193.3502

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 110.947 C1 C2 H6 109.587
C1 C2 H7 109.587 C1 N3 H8 115.731
C1 O4 H9 111.688 C2 C1 N3 129.927
C2 C1 O4 111.220 N3 C1 O4 118.854
H5 C2 H6 109.452 H5 C2 H7 109.452
H6 C2 H7 107.756
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.199      
2 C -0.564      
3 N -0.310      
4 O -0.525      
5 H 0.154      
6 H 0.187      
7 H 0.187      
8 H 0.256      
9 H 0.415      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.898 -0.903 0.000 2.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.148 -0.921 0.000
y -0.921 -28.589 0.000
z 0.000 0.000 -25.352
Traceless
 xyz
x 6.822 -0.921 0.000
y -0.921 -5.839 0.000
z 0.000 0.000 -0.983
Polar
3z2-r2-1.966
x2-y28.441
xy-0.921
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.677 0.304 0.000
y 0.304 5.822 0.000
z 0.000 0.000 3.184


<r2> (average value of r2) Å2
<r2> 64.683
(<r2>)1/2 8.043