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: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-94.012032
Energy at 298.15K-94.014979
HF Energy-94.012032
Nuclear repulsion energy32.529740
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 wB97X-D/3-21G*
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' 3557 3372 15.97 95.20 0.58 0.73
2 A' 3393 3216 7.92 241.27 0.28 0.43
3 A' 2837 2689 143.99 123.53 0.45 0.62
4 A' 1765 1672 14.87 27.70 0.45 0.62
5 A' 1452 1376 36.91 12.66 0.74 0.85
6 A' 1375 1303 11.71 3.97 0.18 0.31
7 A' 1107 1050 25.68 10.32 0.66 0.80
8 A" 1164 1104 11.98 0.87 0.75 0.86
9 A" 922 874 264.03 1.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8785.9 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 8327.3 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 wB97X-D/3-21G*
ABC
6.73441 1.10676 0.95054

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.063 0.797 0.000
N2 0.063 -0.530 0.000
H3 -1.016 1.105 0.000
H4 -0.752 -1.151 0.000
H5 0.953 -1.020 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.32691.12122.11162.0235
N21.32691.95841.02441.0167
H31.12121.95842.27132.8968
H42.11161.02442.27131.7106
H52.02351.01672.89681.7106

picture of aminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 127.323 C1 N2 H5 118.807
N2 C1 H3 105.940 H4 N2 H5 113.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.076      
2 N -0.723      
3 H 0.134      
4 H 0.317      
5 H 0.348      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.366 -3.341 0.000 3.610
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.592 -2.266 0.000
y -2.266 -13.168 0.000
z 0.000 0.000 -13.313
Traceless
 xyz
x 1.648 -2.266 0.000
y -2.266 -0.716 0.000
z 0.000 0.000 -0.932
Polar
3z2-r2-1.865
x2-y21.576
xy-2.266
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.465 -0.339 0.000
y -0.339 3.311 0.000
z 0.000 0.000 1.195


<r2> (average value of r2) Å2
<r2> 19.846
(<r2>)1/2 4.455