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All results from a given calculation for HCNO (fulminic acid)

using model chemistry: wB97X-D/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at wB97X-D/CEP-121G*
 hartrees
Energy at 0K-32.019862
Energy at 298.15K 
HF Energy-32.019862
Nuclear repulsion energy31.523184
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 wB97X-D/CEP-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3493 3493 224.90 20.52 0.24 0.38
2 Σ 2290 2290 421.98 48.56 0.13 0.23
3 Σ 1264 1264 150.16 17.35 0.27 0.43
4 Π 550 550 2.66 0.44 0.75 0.86
4 Π 550 550 2.66 0.44 0.75 0.86
5 Π 285 285 99.89 7.98 0.75 0.86
5 Π 285 285 99.89 7.98 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4358.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4358.7 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 wB97X-D/CEP-121G*
B
0.37612

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.195
N2 0.000 0.000 -0.025
C3 0.000 0.000 -1.188
H4 0.000 0.000 -2.256

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.22062.38363.4512
N21.22061.16302.2306
C32.38361.16301.0676
H43.45122.23061.0676

picture of fulminic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C3 180.000 N2 C3 H4 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.349      
2 N 0.386      
3 C -0.351      
4 H 0.314      


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 -3.525 3.525
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.614 0.000 0.000
y 0.000 -16.614 0.000
z 0.000 0.000 -13.450
Traceless
 xyz
x -1.582 0.000 0.000
y 0.000 -1.582 0.000
z 0.000 0.000 3.164
Polar
3z2-r26.328
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.561 0.000 0.000
y 0.000 1.561 0.000
z 0.000 0.000 6.097


<r2> (average value of r2) Å2
<r2> 29.031
(<r2>)1/2 5.388