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: B3LYPultrafine/aug-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 B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-93.996929
Energy at 298.15K-93.998290
HF Energy-93.996929
Nuclear repulsion energy27.439632
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 B3LYPultrafine/aug-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 2965 2878 0.15      
2 A1 1715 1665 0.77      
3 A1 1362 1322 17.55      
4 B1 989 959 35.47      
5 B2 3032 2942 8.68      
6 B2 923 896 8.16      

Unscaled Zero Point Vibrational Energy (zpe) 5493.3 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 5330.7 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 B3LYPultrafine/aug-cc-pVDZ
ABC
9.38088 1.29909 1.14107

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.506
N2 0.000 0.000 0.742
H3 0.000 0.944 -1.081
H4 0.000 -0.944 -1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24811.10561.1056
N21.24812.05332.0533
H31.10562.05331.8884
H41.10562.05331.8884

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 121.350 N2 C1 H4 121.350
H3 C1 H4 117.301
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.819      
2 N -0.344      
3 H -0.237      
4 H -0.237      


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 -2.514 2.514
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.992 0.000 0.000
y 0.000 -11.214 0.000
z 0.000 0.000 -13.168
Traceless
 xyz
x -0.801 0.000 0.000
y 0.000 1.866 0.000
z 0.000 0.000 -1.065
Polar
3z2-r2-2.129
x2-y2-1.778
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.312 0.000 0.000
y 0.000 2.833 0.000
z 0.000 0.000 3.950


<r2> (average value of r2) Å2
<r2> 17.293
(<r2>)1/2 4.158