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

using model chemistry: B3LYP/cc-pVDZ

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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-168.586640
Energy at 298.15K 
HF Energy-168.586640
Nuclear repulsion energy60.273271
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/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 3518 3413 264.76 26.31 0.27 0.43
2 Σ 2344 2274 329.58 24.47 0.14 0.24
3 Σ 1312 1273 108.55 18.33 0.30 0.46
4 Π 570 553 0.58 0.59 0.75 0.86
4 Π 570 553 0.58 0.59 0.75 0.86
5 Π 100 97 84.69 2.22 0.75 0.86
5 Π 100 97 84.69 2.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4257.5 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 4129.8 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/cc-pVDZ
B
0.38057

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.185
N2 0.000 0.000 -0.017
C3 0.000 0.000 -1.184
H4 0.000 0.000 -2.254

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20162.36923.4388
N21.20161.16762.2372
C32.36921.16761.0696
H43.43882.23721.0696

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/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.279      
2 N 0.216      
3 C -0.037      
4 H 0.100      


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 -2.918 2.918
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.468 0.000 0.000
y 0.000 -16.468 0.000
z 0.000 0.000 -13.839
Traceless
 xyz
x -1.314 0.000 0.000
y 0.000 -1.314 0.000
z 0.000 0.000 2.629
Polar
3z2-r25.257
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 1.395 0.000 0.000
y 0.000 1.395 0.000
z 0.000 0.000 5.558


<r2> (average value of r2) Å2
<r2> 34.468
(<r2>)1/2 5.871

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B3LYP/cc-pVDZ
 hartrees
Energy at 0K-168.586641
Energy at 298.15K-168.586989
HF Energy-168.586641
Nuclear repulsion energy60.276333
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/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 A' 3519 3413 264.67      
2 A' 2344 2274 330.24      
3 A' 1313 1274 108.30      
4 A' 570 553 0.59      
5 A' 100 97 84.75      
6 A" 570 553 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 4207.8 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 4081.6 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/cc-pVDZ
B
0.38061

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.028 -1.184 0.000
N2 0.000 0.017 0.000
C3 0.029 1.184 0.000
H4 0.048 2.253 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20142.36913.4387
N21.20141.16772.2372
C32.36911.16771.0696
H43.43872.23721.0696

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 179.902 N2 C3 H4 179.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.279      
2 N 0.216      
3 C -0.037      
4 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.060 2.915 0.000 2.916
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.467 0.045 0.000
y 0.045 -13.840 0.000
z 0.000 0.000 -16.468
Traceless
 xyz
x -1.313 0.045 0.000
y 0.045 2.627 0.000
z 0.000 0.000 -1.314
Polar
3z2-r2-2.628
x2-y2-2.627
xy0.045
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.398 0.100 0.000
y 0.100 5.555 0.000
z 0.000 0.000 1.395


<r2> (average value of r2) Å2
<r2> 34.466
(<r2>)1/2 5.871