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: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-94.016097
Energy at 298.15K-94.019046
HF Energy-94.016097
Nuclear repulsion energy33.189124
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/TZVP
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' 3842 3491 34.16 69.20 0.70 0.82
2 A' 3719 3379 4.32 150.49 0.18 0.31
3 A' 3104 2820 117.84 156.45 0.45 0.62
4 A' 1845 1677 42.94 10.05 0.58 0.73
5 A' 1520 1381 21.05 3.21 0.57 0.72
6 A' 1502 1365 46.96 7.98 0.32 0.49
7 A' 1161 1055 18.99 3.27 0.64 0.78
8 A" 1217 1105 10.41 2.18 0.75 0.86
9 A" 840 763 219.94 0.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9374.7 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 8517.8 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/TZVP
ABC
7.03316 1.14963 0.98812

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.062 0.780 0.000
N2 0.062 -0.523 0.000
H3 -0.985 1.098 0.000
H4 -0.753 -1.101 0.000
H5 0.928 -1.015 0.000

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5
C11.30261.09472.04971.9924
N21.30261.92990.99960.9958
H31.09471.92992.21082.8503
H42.04970.99962.21081.6839
H51.99240.99582.85031.6839

picture of aminomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 125.307 C1 N2 H5 119.589
N2 C1 H3 106.903 H4 N2 H5 115.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.094      
2 N -0.383      
3 H 0.012      
4 H 0.214      
5 H 0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.519 -3.082 0.000 3.436
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.080 -2.406 0.000
y -2.406 -13.735 0.000
z 0.000 0.000 -13.856
Traceless
 xyz
x 1.716 -2.406 0.000
y -2.406 -0.767 0.000
z 0.000 0.000 -0.949
Polar
3z2-r2-1.898
x2-y21.655
xy-2.406
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.936 -0.168 0.000
y -0.168 3.765 0.000
z 0.000 0.000 2.065


<r2> (average value of r2) Å2
<r2> 19.718
(<r2>)1/2 4.440