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

using model chemistry: B3LYPultrafine/6-31G(2df,p)

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 B3LYPultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-168.586686
Energy at 298.15K 
HF Energy-168.586686
Nuclear repulsion energy60.532089
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 B3LYPultrafine/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 Σ 3523 3400 248.18 25.49 0.24 0.39
2 Σ 2360 2277 307.48 20.86 0.18 0.30
3 Σ 1308 1263 106.72 19.49 0.24 0.39
4 Π 580 559 0.91 0.78 0.75 0.86
4 Π 580 559 0.91 0.78 0.75 0.86
5 Π 100 96 73.09 1.44 0.75 0.86
5 Π 100 96 73.09 1.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4275.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 4125.5 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 B3LYPultrafine/6-31G(2df,p)
B
0.38389

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.181
N2 0.000 0.000 -0.020
C3 0.000 0.000 -1.179
H4 0.000 0.000 -2.238

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20042.35943.4192
N21.20041.15902.2187
C32.35941.15901.0597
H43.41922.21871.0597

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 B3LYPultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.430      
2 N 0.434      
3 C -0.264      
4 H 0.260      


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
Primitive
 xyz
x -16.401 0.000 0.000
y 0.000 -16.401 0.000
z 0.000 0.000 -13.439
Traceless
 xyz
x -1.481 0.000 0.000
y 0.000 -1.481 0.000
z 0.000 0.000 2.962
Polar
3z2-r25.924
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 1.712 0.000 0.000
y 0.000 1.712 0.000
z 0.000 0.000 5.436


<r2> (average value of r2) Å2
<r2> 34.129
(<r2>)1/2 5.842