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

using model chemistry: BLYP/daug-cc-pVTZ

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 BLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-168.628248
Energy at 298.15K 
HF Energy-168.628248
Nuclear repulsion energy59.964386
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 BLYP/daug-cc-pVTZ
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 3424 3424 237.23 39.69 0.22 0.36
2 Σ 2231 2231 371.66 38.01 0.04 0.08
3 Σ 1231 1231 106.81 27.33 0.19 0.32
4 Π 531 531 4.26 0.14 0.75 0.86
4 Π 531 531 4.26 0.14 0.75 0.86
5 Π 186i 186i 70.17 4.53 0.75 0.86
5 Π 186i 186i 70.17 4.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3787.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3787.0 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 BLYP/daug-cc-pVTZ
B
0.37671

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/daug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.193
N2 0.000 0.000 -0.021
C3 0.000 0.000 -1.190
H4 0.000 0.000 -2.254

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.21372.38243.4469
N21.21371.16882.2332
C32.38241.16881.0645
H43.44692.23321.0645

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 BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.998      
2 N 0.068      
3 C -0.695      
4 H 1.625      


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 -2.978 2.978
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.074 0.000 0.000
y 0.000 -17.074 0.000
z 0.000 0.000 -14.427
Traceless
 xyz
x -1.324 0.000 0.000
y 0.000 -1.324 0.000
z 0.000 0.000 2.647
Polar
3z2-r25.294
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 2.713 0.000 0.000
y 0.000 2.713 0.000
z 0.000 0.000 6.732


<r2> (average value of r2) Å2
<r2> 35.071
(<r2>)1/2 5.922