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: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-94.545474
Energy at 298.15K 
HF Energy-94.545474
Nuclear repulsion energy32.728511
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 B1B95/6-31G
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' 3399 3242 12.51      
2 A' 3197 3049 38.57      
3 A' 3065 2924 47.51      
4 A' 1726 1646 16.06      
5 A' 1533 1462 5.54      
6 A' 1359 1296 48.46      
7 A' 1080 1030 55.55      
8 A" 1185 1130 64.16      
9 A" 1121 1069 22.34      

Unscaled Zero Point Vibrational Energy (zpe) 8832.4 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 8423.5 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 B1B95/6-31G
ABC
6.72724 1.13916 0.97419

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.055 0.592 0.000
N2 0.055 -0.685 0.000
H3 -0.833 1.234 0.000
H4 1.011 1.109 0.000
H5 -0.887 -1.099 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.27731.09521.08741.9358
N21.27732.11442.03341.0286
H31.09522.11441.84832.3337
H41.08742.03341.84832.9121
H51.93581.02862.33372.9121

picture of Methanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 113.730 N2 C1 H3 125.873
N2 C1 H4 118.388 H3 C1 H4 115.740
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.139      
2 N -0.439      
3 H 0.137      
4 H 0.167      
5 H 0.274      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.666 1.409 0.000 2.181
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.656 2.330 0.000
y 2.330 -12.566 0.000
z 0.000 0.000 -13.334
Traceless
 xyz
x 1.294 2.330 0.000
y 2.330 -0.072 0.000
z 0.000 0.000 -1.222
Polar
3z2-r2-2.445
x2-y20.910
xy2.330
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.482 0.281 0.000
y 0.281 3.749 0.000
z 0.000 0.000 1.027


<r2> (average value of r2) Å2
<r2> 19.712
(<r2>)1/2 4.440