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: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-94.594608
Energy at 298.15K 
HF Energy-94.594608
Nuclear repulsion energy32.642400
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 B3LYP/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' 3365 3237 17.00      
2 A' 3174 3053 39.46      
3 A' 3044 2928 49.58      
4 A' 1710 1645 15.08      
5 A' 1529 1471 5.84      
6 A' 1360 1309 50.69      
7 A' 1081 1040 53.62      
8 A" 1177 1133 61.85      
9 A" 1115 1073 19.16      

Unscaled Zero Point Vibrational Energy (zpe) 8777.1 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 8443.6 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 B3LYP/6-31G
ABC
6.70450 1.13250 0.96884

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.055 0.594 0.000
N2 0.055 -0.687 0.000
H3 -0.834 1.237 0.000
H4 1.012 1.113 0.000
H5 -0.890 -1.102 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.28111.09701.08951.9410
N21.28112.11952.03941.0313
H31.09702.11951.85052.3396
H41.08952.03941.85052.9197
H51.94101.03132.33962.9197

picture of Methanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 113.712 N2 C1 H3 125.889
N2 C1 H4 118.478 H3 C1 H4 115.634
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.112      
2 N -0.422      
3 H 0.122      
4 H 0.151      
5 H 0.261      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.636 1.398 0.000 2.152
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.739 2.299 0.000
y 2.299 -12.648 0.000
z 0.000 0.000 -13.345
Traceless
 xyz
x 1.257 2.299 0.000
y 2.299 -0.105 0.000
z 0.000 0.000 -1.152
Polar
3z2-r2-2.303
x2-y20.908
xy2.299
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.506 0.293 0.000
y 0.293 3.780 0.000
z 0.000 0.000 1.027


<r2> (average value of r2) Å2
<r2> 19.812
(<r2>)1/2 4.451