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 CHNH2 (aminomethylene)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-94.455038
Energy at 298.15K-94.457947
HF Energy-94.363319
Nuclear repulsion energy32.719959
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/6-31G*
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' 3586 3404 12.04 96.71 0.58 0.73
2 A' 3415 3242 14.02 263.99 0.27 0.42
3 A' 2950 2800 136.03 124.34 0.45 0.62
4 A' 1738 1650 8.84 25.37 0.44 0.61
5 A' 1451 1377 19.74 10.99 0.57 0.73
6 A' 1421 1349 12.47 4.58 0.34 0.51
7 A' 1087 1032 23.78 10.16 0.55 0.71
8 A" 1174 1115 10.38 1.17 0.75 0.86
9 A" 797 756 199.92 0.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8809.4 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 8361.9 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/6-31G*
ABC
6.80036 1.12159 0.96280

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.062 0.793 0.000
N2 0.062 -0.525 0.000
H3 -1.009 1.084 0.000
H4 -0.749 -1.148 0.000
H5 0.948 -1.020 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.31831.11042.10382.0179
N21.31831.93311.02271.0147
H31.11041.93312.24682.8736
H42.10381.02272.24681.7020
H52.01791.01472.87361.7020

picture of aminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 127.510 C1 N2 H5 119.179
N2 C1 H3 105.169 H4 N2 H5 113.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.136      
2 N -0.641      
3 H 0.091      
4 H 0.328      
5 H 0.358      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.184 -3.221 0.000 3.432
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.742 -2.048 -0.002
y -2.048 -13.198 -0.004
z -0.002 -0.004 -13.421
Traceless
 xyz
x 1.567 -2.048 -0.002
y -2.048 -0.616 -0.004
z -0.002 -0.004 -0.952
Polar
3z2-r2-1.903
x2-y21.455
xy-2.048
xz-0.002
yz-0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.700 -0.251 0.000
y -0.251 3.659 -0.000
z 0.000 -0.000 1.403


<r2> (average value of r2) Å2
<r2> 19.754
(<r2>)1/2 4.445