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

using model chemistry: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-207.746208
Energy at 298.15K-207.752491
HF Energy-207.606454
Nuclear repulsion energy120.256233
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 B2PLYP/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' 3488 3488 13.61      
2 A' 3404 3404 1.67      
3 A' 3181 3181 11.20      
4 A' 3095 3095 4.07      
5 A' 1724 1724 120.72      
6 A' 1563 1563 36.63      
7 A' 1473 1473 35.03      
8 A' 1442 1442 24.56      
9 A' 1247 1247 97.19      
10 A' 1096 1096 116.46      
11 A' 1012 1012 137.12      
12 A' 841 841 0.81      
13 A' 538 538 40.94      
14 A' 403 403 3.08      
15 A" 3158 3158 5.66      
16 A" 1561 1561 8.26      
17 A" 1126 1126 12.07      
18 A" 862 862 34.76      
19 A" 655 655 166.66      
20 A" 521 521 19.47      
21 A" 101 101 1.59      

Unscaled Zero Point Vibrational Energy (zpe) 16243.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16243.6 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 B2PLYP/3-21G*
ABC
0.35270 0.30488 0.16867

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.139 0.000
C2 1.056 -0.941 0.000
N3 0.101 1.410 0.000
O4 -1.264 -0.436 0.000
H5 2.056 -0.507 0.000
H6 0.930 -1.572 0.883
H7 0.930 -1.572 -0.883
H8 1.067 1.761 0.000
H9 -1.914 0.319 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51071.27521.38882.15472.13862.13861.94161.9219
C21.51072.53812.37391.09021.09271.09272.70253.2256
N31.27522.53812.29652.73773.21923.21921.02792.2913
O41.38882.37392.29653.32022.62312.62313.20370.9962
H52.15471.09022.73773.32021.78431.78432.47394.0540
H62.13861.09273.21922.62311.78431.76583.45143.5269
H72.13861.09273.21922.62311.78431.76583.45143.5269
H81.94162.70251.02793.20372.47393.45143.45143.3114
H91.92193.22562.29130.99624.05403.52693.52693.3114

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 110.840 C1 C2 H6 109.416
C1 C2 H7 109.416 C1 N3 H8 114.505
C1 O4 H9 106.212 C2 C1 N3 131.116
C2 C1 O4 109.847 N3 C1 O4 119.037
H5 C2 H6 109.651 H5 C2 H7 109.651
H6 C2 H7 107.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.520      
2 C -0.601      
3 N -0.624      
4 O -0.571      
5 H 0.195      
6 H 0.230      
7 H 0.230      
8 H 0.257      
9 H 0.364      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.406 -0.415 0.000 1.466
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.142 -0.385 0.000
y -0.385 -26.884 0.000
z 0.000 0.000 -24.640
Traceless
 xyz
x 5.620 -0.385 0.000
y -0.385 -4.493 0.000
z 0.000 0.000 -1.127
Polar
3z2-r2-2.254
x2-y26.742
xy-0.385
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.708 0.280 0.000
y 0.280 5.189 0.000
z 0.000 0.000 2.347


<r2> (average value of r2) Å2
<r2> 76.058
(<r2>)1/2 8.721