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: TPSSh/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/STO-3G
 hartrees
Energy at 0K-93.430546
Energy at 298.15K 
HF Energy-93.430546
Nuclear repulsion energy31.924610
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 TPSSh/STO-3G
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' 3467 3467 11.30      
2 A' 3412 3412 16.79      
3 A' 3296 3296 0.01      
4 A' 1760 1760 4.73      
5 A' 1556 1556 0.44      
6 A' 1482 1482 25.39      
7 A' 1101 1101 17.30      
8 A" 1234 1234 21.85      
9 A" 1054 1054 12.29      

Unscaled Zero Point Vibrational Energy (zpe) 9180.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9180.8 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 TPSSh/STO-3G
ABC
6.14424 1.09847 0.93187

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.060 0.601 0.000
N2 0.060 -0.712 0.000
H3 -0.830 1.264 0.000
H4 1.036 1.121 0.000
H5 -0.982 -1.006 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.31331.10961.10561.9156
N21.31332.16712.07641.0826
H31.10962.16711.87152.2752
H41.10562.07641.87152.9318
H51.91561.08262.27522.9318

picture of Methanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 105.768 N2 C1 H3 126.666
N2 C1 H4 118.025 H3 C1 H4 115.308
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.046      
2 N -0.251      
3 H 0.069      
4 H 0.081      
5 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.299 1.186 0.000 1.759
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.458 0.379 0.000
y 0.379 2.138 0.000
z 0.000 0.000 0.453


<r2> (average value of r2) Å2
<r2> 19.665
(<r2>)1/2 4.435