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

using model chemistry: TPSSh/cc-pVQZ

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 TPSSh/cc-pVQZ
 hartrees
Energy at 0K-168.658308
Energy at 298.15K 
HF Energy-168.658308
Nuclear repulsion energy60.563269
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 TPSSh/cc-pVQZ
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 3497 3497 250.42 30.36 0.23 0.38
2 Σ 2313 2313 395.27 38.43 0.07 0.13
3 Σ 1291 1291 119.15 22.15 0.24 0.38
4 Π 565 565 3.40 0.19 0.75 0.86
4 Π 565 565 3.40 0.19 0.75 0.86
5 Π 61i 61i 77.28 4.56 0.75 0.86
5 Π 61i 61i 77.28 4.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4054.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4054.0 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 TPSSh/cc-pVQZ
B
0.38429

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVQZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.180
N2 0.000 0.000 -0.019
C3 0.000 0.000 -1.178
H4 0.000 0.000 -2.238

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19962.35813.4179
N21.19961.15852.2183
C32.35811.15851.0598
H43.41792.21831.0598

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 TPSSh/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.289      
2 N 0.232      
3 C -0.205      
4 H 0.262      


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 -3.032 3.032
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.193 0.000 0.000
y 0.000 2.193 0.000
z 0.000 0.000 6.127


<r2> (average value of r2) Å2
<r2> 34.322
(<r2>)1/2 5.858