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

using model chemistry: CCSD=FULL/daug-cc-pVDZ

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 CCSD=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-168.177548
Energy at 298.15K 
HF Energy-167.655194
Nuclear repulsion energy59.903385
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 CCSD=FULL/daug-cc-pVDZ
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 3502 3502 257.86      
2 Σ 2294 2294 411.60      
3 Σ 1255 1255 166.85      
4 Xpi 543 543 4.55      
4 Xpi 543 543 4.55      
5 Xpi 221 221 61.63      
5 Xpi 221 221 61.63      

Unscaled Zero Point Vibrational Energy (zpe) 4290.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4290.2 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 CCSD=FULL/daug-cc-pVDZ
B
0.37603

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/daug-cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.194
N2 0.000 0.000 -0.022
C3 0.000 0.000 -1.190
H4 0.000 0.000 -2.261

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.21592.38383.4546
N21.21591.16792.2387
C32.38381.16791.0708
H43.45462.23871.0708

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