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All results from a given calculation for CH2NH (Methanimine)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-16.835927
Energy at 298.15K 
HF Energy-16.835927
Nuclear repulsion energy19.189829
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 HF/CEP-121G
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' 3650 3331 7.15      
2 A' 3342 3050 41.41      
3 A' 3210 2929 39.08      
4 A' 1802 1644 20.44      
5 A' 1601 1461 19.70      
6 A' 1458 1331 53.47      
7 A' 1144 1044 51.19      
8 A" 1261 1151 83.28      
9 A" 1228 1120 13.07      

Unscaled Zero Point Vibrational Energy (zpe) 9348.0 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 8530.0 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 HF/CEP-121G
ABC
6.86316 1.14516 0.98140

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.073 0.579 0.000
N2 0.073 -0.697 0.000
H3 -0.823 1.191 0.000
H4 1.016 1.100 0.000
H5 -0.847 -1.118 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.27611.08481.07771.9304
N21.27612.08982.02981.0116
H31.08482.08981.84132.3092
H41.07772.02981.84132.8969
H51.93041.01162.30922.8969

picture of Methanimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H5 114.593 N2 C1 H3 124.339
N2 C1 H4 118.919 H3 C1 H4 116.742
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.246      
2 N -0.257      
3 H 0.121      
4 H 0.150      
5 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.852 1.734 0.000 2.538
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.887 2.579 0.000
y 2.579 -12.832 0.000
z 0.000 0.000 -13.849
Traceless
 xyz
x 1.454 2.579 0.000
y 2.579 0.036 0.000
z 0.000 0.000 -1.490
Polar
3z2-r2-2.980
x2-y20.945
xy2.579
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.382 0.253 0.000
y 0.253 4.090 0.000
z 0.000 0.000 1.446


<r2> (average value of r2) Å2
<r2> 18.154
(<r2>)1/2 4.261