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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
1 2 no CS 1A'

Conformer 1 (C*V)

Jump to S1C2
Energy calculated at G3B3
 hartrees
Energy at 0K-168.489846
Energy at 298.15K-168.485025
HF Energy-168.571616
Nuclear repulsion energy60.194790
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 B3LYP/6-31G*
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 3541 3400 237.70 27.45 0.24 0.38
2 Σ 2363 2269 297.48 22.36 0.19 0.31
3 Σ 1308 1256 107.94 17.87 0.28 0.44
4 Π 569 547 0.25 0.84 0.75 0.86
4 Π 569 547 0.25 0.84 0.75 0.86
5 Π 207 199 88.59 2.14 0.75 0.86
5 Π 207 199 88.59 2.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4381.8 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 4207.8 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 B3LYP/6-31G*
B
0.37965

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.188
N2 0.000 0.000 -0.021
C3 0.000 0.000 -1.185
H4 0.000 0.000 -2.248

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20872.37283.4363
N21.20871.16412.2276
C32.37281.16411.0635
H43.43632.22761.0635

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 B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.469      
2 N 0.197      
3 C 0.004      
4 H 0.268      


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 -3.152 3.152
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 34.422
(<r2>)1/2 5.867

Conformer 2 (CS)

Jump to S1C1
Energy calculated at G3B3
 hartrees
Energy at 0K-168.490700
Energy at 298.15K-168.485817
HF Energy-168.571616
Nuclear repulsion energy60.197381
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 B3LYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3541 3400 237.66      
2 A' 2363 2269 297.87      
3 A' 1308 1257 107.78      
4 A' 569 547 0.25      
5 A' 207 198 88.63      
6 A" 569 547 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 4278.5 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 4108.7 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 B3LYP/6-31G*
B
0.37967

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.022 -1.188 0.000
N2 0.000 0.021 0.000
C3 0.023 1.185 0.000
H4 0.036 2.248 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20852.37273.4362
N21.20851.16422.2276
C32.37271.16421.0635
H43.43622.22761.0635

picture of fulminic acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C3 179.742 N2 C3 H4 162.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.469      
2 N 0.197      
3 C 0.004      
4 H 0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.048 3.151 0.000 3.151
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 34.420
(<r2>)1/2 5.867