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

using model chemistry: wB97X-D/aug-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 wB97X-D/aug-cc-pVQZ
 hartrees
Energy at 0K-168.591306
Energy at 298.15K 
HF Energy-168.591306
Nuclear repulsion energy60.928180
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 wB97X-D/aug-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 3504 3504 274.68 27.98 0.21 0.35
2 Σ 2357 2357 461.72 56.23 0.07 0.13
3 Σ 1321 1321 160.99 23.41 0.18 0.31
4 Π 579 579 1.87 0.29 0.75 0.86
4 Π 579 579 1.87 0.29 0.75 0.86
5 Π 314 314 72.91 4.59 0.75 0.86
5 Π 314 314 72.91 4.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4483.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4483.5 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 wB97X-D/aug-cc-pVQZ
B
0.38903

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVQZ

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 -0.020
C3 0.000 0.000 -1.170
H4 0.000 0.000 -2.230

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19272.34283.4028
N21.19271.15012.2102
C32.34281.15011.0600
H43.40282.21021.0600

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 wB97X-D/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.401      
2 N 0.036      
3 C 0.087      
4 H 0.278      


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 -3.300 3.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.743 0.000 0.000
y 0.000 -16.743 0.000
z 0.000 0.000 -13.903
Traceless
 xyz
x -1.420 0.000 0.000
y 0.000 -1.420 0.000
z 0.000 0.000 2.840
Polar
3z2-r25.680
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 2.520 0.000 0.000
y 0.000 2.520 0.000
z 0.000 0.000 6.306


<r2> (average value of r2) Å2
<r2> 34.059
(<r2>)1/2 5.836