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All results from a given calculation for H2CN (Dihydrogen cyanide radical)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-93.337754
Energy at 298.15K-93.339104
HF Energy-93.337754
Nuclear repulsion energy27.111917
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 PBEPBE/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 A1 2896 2870 0.09      
2 A1 1597 1582 4.25      
3 A1 1383 1370 12.25      
4 B1 973 964 55.73      
5 B2 2930 2903 20.82      
6 B2 910 902 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 5343.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 5295.3 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 PBEPBE/3-21G
ABC
9.63433 1.25410 1.10966

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.511
N2 0.000 0.000 0.756
H3 0.000 0.932 -1.112
H4 0.000 -0.932 -1.112

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.26621.10911.1091
N21.26622.08742.0874
H31.10912.08741.8634
H41.10912.08741.8634

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 122.856 N2 C1 H4 122.856
H3 C1 H4 114.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.217      
2 N -0.248      
3 H 0.233      
4 H 0.233      


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 -2.258 2.258
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.592 0.000 0.000
y 0.000 -10.877 0.000
z 0.000 0.000 -12.620
Traceless
 xyz
x -0.844 0.000 0.000
y 0.000 1.729 0.000
z 0.000 0.000 -0.885
Polar
3z2-r2-1.770
x2-y2-1.716
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.921 0.000 0.000
y 0.000 1.987 0.000
z 0.000 0.000 3.040


<r2> (average value of r2) Å2
<r2> 17.285
(<r2>)1/2 4.157