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

using model chemistry: TPSSh/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 TPSSh/6-311+G(3df,2p)
 hartrees
Energy at 0K-168.643152
Energy at 298.15K 
HF Energy-168.643152
Nuclear repulsion energy60.542288
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 TPSSh/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 3493 3493 254.19 32.51 0.24 0.38
2 Σ 2312 2312 414.60 45.79 0.05 0.10
3 Σ 1291 1291 123.32 24.23 0.20 0.34
4 Π 566 566 4.04 0.17 0.75 0.86
4 Π 566 566 4.04 0.17 0.75 0.86
5 Π 77 77 74.25 5.67 0.75 0.86
5 Π 77 77 74.25 5.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4191.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4191.1 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 TPSSh/6-311+G(3df,2p)
B
0.38403

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.181
N2 0.000 0.000 -0.020
C3 0.000 0.000 -1.178
H4 0.000 0.000 -2.239

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20012.35883.4195
N21.20011.15872.2194
C32.35881.15871.0607
H43.41952.21941.0607

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 TPSSh/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.624      
2 N -0.115      
3 C 0.491      
4 H 0.247      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.426 0.000 0.000
y 0.000 2.426 0.000
z 0.000 0.000 6.386


<r2> (average value of r2) Å2
<r2> 34.411
(<r2>)1/2 5.866