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 H2CN (Dihydrogen cyanide radical)

using model chemistry: B97D3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-93.956772
Energy at 298.15K-93.958123
HF Energy-93.956772
Nuclear repulsion energy27.477531
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 B97D3/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 A1 2902 2860 0.65      
2 A1 1679 1655 1.33      
3 A1 1354 1335 14.01      
4 B1 964 950 37.79      
5 B2 2950 2908 17.50      
6 B2 914 901 4.40      

Unscaled Zero Point Vibrational Energy (zpe) 5381.8 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 5304.3 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 B97D3/TZVP
ABC
9.48266 1.30047 1.14363

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.504
N2 0.000 0.000 0.742
H3 0.000 0.939 -1.085
H4 0.000 -0.939 -1.085

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24571.10461.1046
N21.24572.05452.0545
H31.10462.05451.8783
H41.10462.05451.8783

picture of Dihydrogen cyanide radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 H3 121.769 N2 C1 H4 121.769
H3 C1 H4 116.461
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.139      
2 N -0.121      
3 H 0.130      
4 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.450 2.450
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.801 0.000 0.000
y 0.000 -11.050 0.000
z 0.000 0.000 -12.997
Traceless
 xyz
x -0.778 0.000 0.000
y 0.000 1.850 0.000
z 0.000 0.000 -1.072
Polar
3z2-r2-2.143
x2-y2-1.752
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.707 0.000 0.000
y 0.000 2.413 0.000
z 0.000 0.000 3.774


<r2> (average value of r2) Å2
<r2> 17.168
(<r2>)1/2 4.143