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

using model chemistry: B2PLYP=FULLultrafine/Def2TZVPP

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 B2PLYP=FULLultrafine/Def2TZVPP
 hartrees
Energy at 0K-168.547140
Energy at 298.15K 
HF Energy-168.328074
Nuclear repulsion energy60.470229
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 B2PLYP=FULLultrafine/Def2TZVPP
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 3519 3519 261.30 31.15 0.22 0.36
2 Σ 2282 2282 429.72 25.57 0.06 0.11
3 Σ 1286 1286 97.39 28.92 0.25 0.40
4 Π 560 560 2.81 0.14 0.75 0.86
4 Π 560 560 2.81 0.14 0.75 0.86
5 Π 11i 11i 78.54 5.75 0.75 0.86
5 Π 11i 11i 78.54 5.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4092.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4092.1 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 B2PLYP=FULLultrafine/Def2TZVPP
B
0.38302

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/Def2TZVPP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.182
N2 0.000 0.000 -0.018
C3 0.000 0.000 -1.181
H4 0.000 0.000 -2.239

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19982.36263.4205
N21.19981.16282.2207
C32.36261.16281.0578
H43.42052.22071.0578

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 B2PLYP=FULLultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.317      
2 N 0.347      
3 C -0.265      
4 H 0.235      


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 -3.084 3.084
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.892 0.000 0.000
y 0.000 -16.892 0.000
z 0.000 0.000 -14.095
Traceless
 xyz
x -1.399 0.000 0.000
y 0.000 -1.399 0.000
z 0.000 0.000 2.797
Polar
3z2-r25.595
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 1.966 0.000 0.000
y 0.000 1.966 0.000
z 0.000 0.000 6.240


<r2> (average value of r2) Å2
<r2> 34.517
(<r2>)1/2 5.875