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 CH2NH (Methanimine)

using model chemistry: HF/6-311G**

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/6-311G**
 hartrees
Energy at 0K-94.056714
Energy at 298.15K 
HF Energy-94.056714
Nuclear repulsion energy33.392891
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/6-311G**
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' 3701 3362 0.27 107.22 0.33 0.50
2 A' 3284 2983 43.42 80.06 0.60 0.75
3 A' 3192 2900 42.15 100.32 0.20 0.34
4 A' 1875 1703 35.01 18.16 0.13 0.23
5 A' 1610 1462 14.62 18.82 0.42 0.59
6 A' 1489 1353 46.58 3.96 0.72 0.84
7 A' 1159 1053 36.66 2.12 0.56 0.72
8 A" 1265 1149 56.92 0.04 0.75 0.86
9 A" 1222 1110 13.33 0.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9397.6 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 8537.7 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/6-311G**
ABC
6.77483 1.19762 1.01771

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 0.575 0.000
N2 0.056 -0.673 0.000
H3 -0.840 1.190 0.000
H4 0.999 1.105 0.000
H5 -0.881 -1.038 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.24831.08581.08181.8657
N21.24832.06682.01251.0056
H31.08582.06681.84042.2284
H41.08182.01251.84042.8508
H51.86571.00562.22842.8508

picture of Methanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 111.287 N2 C1 H3 124.476
N2 C1 H4 119.299 H3 C1 H4 116.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.000      
2 N -0.351      
3 H 0.080      
4 H 0.102      
5 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.496 1.590 0.000 2.183
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.533 2.072 0.000
y 2.072 -12.538 0.000
z 0.000 0.000 -13.515
Traceless
 xyz
x 1.493 2.072 0.000
y 2.072 -0.014 0.000
z 0.000 0.000 -1.480
Polar
3z2-r2-2.959
x2-y21.005
xy2.072
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.454 0.242 0.000
y 0.242 3.786 0.000
z 0.000 0.000 1.490


<r2> (average value of r2) Å2
<r2> 19.215
(<r2>)1/2 4.384