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

using model chemistry: B3PW91/6-31G(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 B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-209.134948
Energy at 298.15K-209.141287
HF Energy-209.134948
Nuclear repulsion energy121.878320
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 B3PW91/6-31G(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' 3781 3635 44.88      
2 A' 3548 3411 2.11      
3 A' 3167 3045 10.58      
4 A' 3060 2942 5.29      
5 A' 1764 1696 216.83      
6 A' 1479 1422 30.65      
7 A' 1451 1395 63.55      
8 A' 1382 1328 0.20      
9 A' 1265 1216 97.15      
10 A' 1110 1068 171.12      
11 A' 1011 972 27.11      
12 A' 880 846 2.37      
13 A' 549 528 39.83      
14 A' 421 404 1.49      
15 A" 3133 3012 5.18      
16 A" 1465 1408 7.28      
17 A" 1063 1022 9.59      
18 A" 847 814 20.07      
19 A" 641 616 118.95      
20 A" 526 506 18.61      
21 A" 120 115 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 16330.7 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 15700.3 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 B3PW91/6-31G(2df,p)
ABC
0.36436 0.31112 0.17321

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.132 0.000
C2 0.902 -1.068 0.000
N3 0.301 1.364 0.000
O4 -1.297 -0.235 0.000
H5 1.951 -0.772 0.000
H6 0.701 -1.686 0.880
H7 0.701 -1.686 -0.880
H8 1.309 1.494 0.000
H9 -1.800 0.591 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50091.26831.34842.15082.13792.13791.88871.8573
C21.50092.50502.35131.09061.09421.09422.59353.1700
N31.26832.50502.26132.69963.19953.19951.01622.2385
O41.34842.35132.26133.29292.62132.62133.12770.9672
H52.15081.09062.69963.29291.78151.78152.35513.9912
H62.13791.09423.19952.62131.78151.76073.35463.4945
H72.13791.09423.19952.62131.78151.76073.35463.4945
H81.88872.59351.01623.12772.35513.35463.35463.2371
H91.85733.17002.23850.96723.99123.49453.49453.2371

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 111.201 C1 C2 H6 109.950
C1 C2 H7 109.950 C1 N3 H8 111.047
C1 O4 H9 105.475 C2 C1 N3 129.346
C2 C1 O4 111.109 N3 C1 O4 119.545
H5 C2 H6 109.257 H5 C2 H7 109.257
H6 C2 H7 107.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.414      
2 C -0.516      
3 N -0.557      
4 O -0.401      
5 H 0.153      
6 H 0.173      
7 H 0.173      
8 H 0.242      
9 H 0.318      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.920 -1.086 0.000 1.423
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.917 -1.449 0.000
y -1.449 -26.419 0.000
z 0.000 0.000 -24.339
Traceless
 xyz
x 5.462 -1.449 0.000
y -1.449 -4.291 0.000
z 0.000 0.000 -1.171
Polar
3z2-r2-2.343
x2-y26.502
xy-1.449
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.295 0.195 0.000
y 0.195 5.768 0.000
z 0.000 0.000 3.325


<r2> (average value of r2) Å2
<r2> 74.260
(<r2>)1/2 8.617