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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-93.948036
Energy at 298.15K-93.949396
HF Energy-93.948036
Nuclear repulsion energy27.547125
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 B3PW91/6-31G(2df,p)
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 2994 2878 0.01      
2 A1 1739 1672 0.67      
3 A1 1375 1322 14.78      
4 B1 991 953 28.76      
5 B2 3055 2937 10.75      
6 B2 926 890 5.86      

Unscaled Zero Point Vibrational Energy (zpe) 5539.7 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 5325.9 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 B3PW91/6-31G(2df,p)
ABC
9.55183 1.30631 1.14915

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.503
N2 0.000 0.000 0.740
H3 0.000 0.936 -1.081
H4 0.000 -0.936 -1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.24351.09981.0998
N21.24352.04772.0477
H31.09982.04771.8714
H41.09982.04771.8714

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 121.700 N2 C1 H4 121.700
H3 C1 H4 116.601
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 N -0.146      
3 H 0.173      
4 H 0.173      


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 -2.357 2.357
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.443 0.000 0.000
y 0.000 -10.776 0.000
z 0.000 0.000 -12.445
Traceless
 xyz
x -0.832 0.000 0.000
y 0.000 1.668 0.000
z 0.000 0.000 -0.836
Polar
3z2-r2-1.672
x2-y2-1.667
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.489 0.000 0.000
y 0.000 2.298 0.000
z 0.000 0.000 3.272


<r2> (average value of r2) Å2
<r2> 16.870
(<r2>)1/2 4.107