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: B2PLYP/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-94.589357
Energy at 298.15K 
HF Energy-94.465061
Nuclear repulsion energy32.964054
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/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3459 3459 1.02      
2 A' 3154 3154 25.58      
3 A' 3053 3053 45.86      
4 A' 1689 1689 17.50      
5 A' 1492 1492 7.27      
6 A' 1374 1374 40.46      
7 A' 1076 1076 35.71      
8 A" 1165 1165 43.84      
9 A" 1101 1101 15.39      

Unscaled Zero Point Vibrational Energy (zpe) 8781.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8781.3 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 B2PLYP/daug-cc-pVTZ
ABC
6.63443 1.16466 0.99074

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 0.586 0.000
N2 0.056 -0.683 0.000
H3 -0.843 1.204 0.000
H4 1.009 1.108 0.000
H5 -0.897 -1.046 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.26901.09091.08641.8892
N21.26902.09052.02891.0193
H31.09092.09051.85382.2505
H41.08642.02891.85382.8756
H51.88921.01932.25052.8756

picture of Methanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 110.826 N2 C1 H3 124.536
N2 C1 H4 118.736 H3 C1 H4 116.728
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.957      
2 N -0.915      
3 H 0.707      
4 H 0.817      
5 H 0.348      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.364 1.518 0.000 2.041
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.885 2.077 0.000
y 2.077 -12.914 0.000
z 0.000 0.000 -13.822
Traceless
 xyz
x 1.483 2.077 0.000
y 2.077 -0.060 0.000
z 0.000 0.000 -1.423
Polar
3z2-r2-2.846
x2-y21.029
xy2.077
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.285 0.101 0.000
y 0.101 4.333 0.000
z 0.000 0.000 2.578


<r2> (average value of r2) Å2
<r2> 19.711
(<r2>)1/2 4.440