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: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-94.528949
Energy at 298.15K-94.531865
HF Energy-94.528949
Nuclear repulsion energy32.938373
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 B1B95/6-31G(2df,p)
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' 3594 3442 12.85 94.45 0.59 0.74
2 A' 3441 3295 10.67 242.83 0.25 0.40
3 A' 2927 2803 109.41 119.49 0.43 0.60
4 A' 1694 1622 9.91 22.53 0.45 0.62
5 A' 1463 1401 11.89 8.92 0.33 0.50
6 A' 1399 1340 14.32 5.16 0.69 0.82
7 A' 1072 1026 22.55 8.42 0.52 0.68
8 A" 1166 1117 9.10 1.02 0.75 0.86
9 A" 816 781 146.72 0.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8785.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 8413.9 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 B1B95/6-31G(2df,p)
ABC
6.83595 1.14025 0.97724

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.063 0.786 0.000
N2 0.063 -0.520 0.000
H3 -1.010 1.077 0.000
H4 -0.747 -1.136 0.000
H5 0.943 -1.016 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.30671.11172.08582.0061
N21.30671.92461.01681.0104
H31.11171.92462.22932.8634
H42.08581.01682.22931.6936
H52.00611.01042.86341.6936

picture of aminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 127.275 C1 N2 H5 119.403
N2 C1 H3 105.183 H4 N2 H5 113.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.277      
2 N -0.358      
3 H 0.094      
4 H 0.260      
5 H 0.282      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.107 -3.193 0.000 3.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.593 -1.952 0.000
y -1.952 -13.087 0.000
z 0.000 0.000 -13.304
Traceless
 xyz
x 1.603 -1.952 0.000
y -1.952 -0.639 0.000
z 0.000 0.000 -0.964
Polar
3z2-r2-1.928
x2-y21.494
xy-1.952
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.844 -0.249 0.000
y -0.249 3.732 0.000
z 0.000 0.000 1.736


<r2> (average value of r2) Å2
<r2> 19.516
(<r2>)1/2 4.418