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/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-94.537707
Energy at 298.15K 
HF Energy-94.434551
Nuclear repulsion energy32.815012
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/6-31+G**
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' 3485 3319 1.34      
2 A' 3199 3047 29.02      
3 A' 3083 2937 46.63      
4 A' 1707 1626 21.23      
5 A' 1510 1438 5.48      
6 A' 1381 1316 31.36      
7 A' 1078 1026 37.64      
8 A" 1170 1114 57.44      
9 A" 1102 1050 13.35      

Unscaled Zero Point Vibrational Energy (zpe) 8857.3 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 8435.7 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 B2PLYP/6-31+G**
ABC
6.60243 1.15227 0.98106

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.056 0.589 0.000
N2 0.056 -0.688 0.000
H3 -0.841 1.214 0.000
H4 1.011 1.111 0.000
H5 -0.902 -1.045 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.27641.09391.08821.8937
N21.27642.10312.03641.0225
H31.09392.10311.85492.2598
H41.08822.03641.85492.8820
H51.89371.02252.25982.8820

picture of Methanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 110.433 N2 C1 H3 124.882
N2 C1 H4 118.689 H3 C1 H4 116.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.122      
2 N -0.391      
3 H 0.120      
4 H 0.138      
5 H 0.254      


Electric dipole moments


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 2.772 0.097 0.000
y 0.097 4.136 0.000
z 0.000 0.000 1.923


<r2> (average value of r2) Å2
<r2> 19.820
(<r2>)1/2 4.452