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: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-93.954504
Energy at 298.15K-93.955832
HF Energy-93.954504
Nuclear repulsion energy27.201456
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 BLYP/cc-pVDZ
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 2851 2856 0.18      
2 A1 1659 1662 1.01      
3 A1 1305 1307 13.75      
4 B1 928 929 27.19      
5 B2 2891 2895 20.57      
6 B2 870 872 5.04      

Unscaled Zero Point Vibrational Energy (zpe) 5252.4 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 5260.8 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 BLYP/cc-pVDZ
ABC
9.32078 1.27388 1.12071

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.507
N2 0.000 0.000 0.750
H3 0.000 0.947 -1.103
H4 0.000 -0.947 -1.103

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.25651.11921.1192
N21.25652.08082.0808
H31.11922.08081.8945
H41.11922.08081.8945

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 122.185 N2 C1 H4 122.185
H3 C1 H4 115.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.029      
2 N -0.118      
3 H 0.044      
4 H 0.044      


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 -2.174 2.174
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.500 0.000 0.000
y 0.000 -11.031 0.000
z 0.000 0.000 -12.639
Traceless
 xyz
x -0.665 0.000 0.000
y 0.000 1.538 0.000
z 0.000 0.000 -0.873
Polar
3z2-r2-1.747
x2-y2-1.469
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.318 0.000 0.000
y 0.000 2.297 0.000
z 0.000 0.000 3.380


<r2> (average value of r2) Å2
<r2> 17.234
(<r2>)1/2 4.151