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

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

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

Conformer 1 (C*V)

Jump to S1C2
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-168.498908
Energy at 298.15K 
HF Energy-168.498908
Nuclear repulsion energy58.618162
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 BLYP/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 3482 3455 202.19 37.95 0.22 0.36
2 Σ 2197 2180 172.51 18.67 0.15 0.26
3 Σ 1148 1139 64.34 16.18 0.32 0.48
4 Π 490 486 3.51 0.50 0.75 0.86
4 Π 490 486 3.51 0.50 0.75 0.86
5 Π 160 159 104.35 3.25 0.75 0.86
5 Π 160 159 104.35 3.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4063.2 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 4032.4 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 BLYP/6-31G
B
0.35992

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.224
N2 0.000 0.000 -0.031
C3 0.000 0.000 -1.216
H4 0.000 0.000 -2.282

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.25442.43963.5062
N21.25441.18522.2519
C32.43961.18521.0667
H43.50622.25191.0667

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 BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.324      
2 N 0.072      
3 C 0.004      
4 H 0.249      


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 -3.191 3.191
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.594 0.000 0.000
y 0.000 -16.594 0.000
z 0.000 0.000 -14.223
Traceless
 xyz
x -1.186 0.000 0.000
y 0.000 -1.186 0.000
z 0.000 0.000 2.371
Polar
3z2-r24.743
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 1.110 0.000 0.000
y 0.000 1.110 0.000
z 0.000 0.000 5.723


<r2> (average value of r2) Å2
<r2> 35.937
(<r2>)1/2 5.995

Conformer 2 (CS)

Jump to S1C1
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-168.498909
Energy at 298.15K-168.499222
HF Energy-168.498909
Nuclear repulsion energy58.617771
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 BLYP/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' 3482 3456 202.18      
2 A' 2197 2180 172.30      
3 A' 1147 1139 64.44      
4 A' 490 486 3.50      
5 A' 160 159 104.33      
6 A" 489 485 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 3982.7 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 3952.4 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 BLYP/6-31G
B
0.35992

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.003 -1.224 0.000
N2 0.000 0.031 0.000
C3 0.004 1.216 0.000
H4 0.005 2.282 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.25452.43963.5062
N21.25451.18512.2518
C32.43961.18511.0667
H43.50622.25181.0667

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 179.977 N2 C3 H4 179.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.324      
2 N 0.072      
3 C 0.004      
4 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.006 3.192 0.000 3.192
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.594 0.001 0.000
y 0.001 -14.223 0.000
z 0.000 0.000 -16.594
Traceless
 xyz
x -1.186 0.001 0.000
y 0.001 2.372 0.000
z 0.000 0.000 -1.186
Polar
3z2-r2-2.372
x2-y2-2.372
xy0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.110 0.014 0.000
y 0.014 5.723 0.000
z 0.000 0.000 1.110


<r2> (average value of r2) Å2
<r2> 35.937
(<r2>)1/2 5.995