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: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-93.930065
Energy at 298.15K-93.931411
HF Energy-93.930065
Nuclear repulsion energy27.319868
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 B97D3/6-31+G**
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 2929 2878 0.69      
2 A1 1680 1651 0.99      
3 A1 1355 1332 11.46      
4 B1 955 938 42.55      
5 B2 2984 2933 16.06      
6 B2 913 897 4.96      

Unscaled Zero Point Vibrational Energy (zpe) 5407.7 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 5314.7 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 B97D3/6-31+G**
ABC
9.44764 1.28307 1.12965

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.508
N2 0.000 0.000 0.747
H3 0.000 0.941 -1.089
H4 0.000 -0.941 -1.089

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.25531.10571.1057
N21.25532.06322.0632
H31.10572.06321.8817
H41.10572.06321.8817

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 121.214 N2 C1 H4 121.214
H3 C1 H4 117.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.184      
2 N -0.145      
3 H 0.165      
4 H 0.165      


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 -2.531 2.531
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.989 0.000 0.000
y 0.000 -11.153 0.000
z 0.000 0.000 -13.075
Traceless
 xyz
x -0.875 0.000 0.000
y 0.000 1.879 0.000
z 0.000 0.000 -1.004
Polar
3z2-r2-2.009
x2-y2-1.836
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.807 0.000 0.000
y 0.000 2.471 0.000
z 0.000 0.000 3.909


<r2> (average value of r2) Å2
<r2> 17.348
(<r2>)1/2 4.165