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

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

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 HSEh1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-168.466064
Energy at 298.15K 
HF Energy-168.466064
Nuclear repulsion energy60.920302
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 HSEh1PBE/6-311+G(3df,2p)
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 3510 3510 272.68 27.71 0.23 0.37
2 Σ 2365 2365 451.81 50.38 0.06 0.11
3 Σ 1337 1337 139.31 23.66 0.20 0.33
4 Π 584 584 1.89 0.30 0.75 0.86
4 Π 584 584 1.89 0.30 0.75 0.86
5 Π 283 283 73.83 5.15 0.75 0.86
5 Π 283 283 73.83 5.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4472.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4472.5 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 HSEh1PBE/6-311+G(3df,2p)
B
0.38886

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.173
N2 0.000 0.000 -0.018
C3 0.000 0.000 -1.171
H4 0.000 0.000 -2.232

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19022.34333.4044
N21.19021.15312.2142
C32.34331.15311.0611
H43.40442.21421.0611

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 HSEh1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.653      
2 N -0.055      
3 C 0.431      
4 H 0.277      


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 -3.164 3.164
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.838 0.000 0.000
y 0.000 -16.838 0.000
z 0.000 0.000 -14.013
Traceless
 xyz
x -1.412 0.000 0.000
y 0.000 -1.412 0.000
z 0.000 0.000 2.825
Polar
3z2-r25.649
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 2.390 0.000 0.000
y 0.000 2.390 0.000
z 0.000 0.000 6.276


<r2> (average value of r2) Å2
<r2> 34.136
(<r2>)1/2 5.843