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

using model chemistry: B3PW91/6-311G*

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 B3PW91/6-311G*
 hartrees
Energy at 0K-168.549885
Energy at 298.15K 
HF Energy-168.549885
Nuclear repulsion energy60.694293
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 B3PW91/6-311G*
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 3513 3382 233.91      
2 Σ 2360 2272 372.16      
3 Σ 1329 1280 118.78      
4 Xpi 580 558 0.43      
4 Xpi 580 558 0.43      
5 Xpi 160 154 97.50      
5 Xpi 160 154 97.50      

Unscaled Zero Point Vibrational Energy (zpe) 4340.6 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 4178.7 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 B3PW91/6-311G*
B
0.38591

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.177
N2 0.000 0.000 -0.017
C3 0.000 0.000 -1.176
H4 0.000 0.000 -2.238

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19332.35273.4150
N21.19331.15942.2217
C32.35271.15941.0623
H43.41502.22171.0623

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 B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.348      
2 N 0.095      
3 C -0.076      
4 H 0.329      


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 -3.097 3.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.640 0.000 0.000
y 0.000 -16.640 0.000
z 0.000 0.000 -13.784
Traceless
 xyz
x -1.428 0.000 0.000
y 0.000 -1.428 0.000
z 0.000 0.000 2.856
Polar
3z2-r25.712
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 1.458 0.000 0.000
y 0.000 1.458 0.000
z 0.000 0.000 5.628


<r2> (average value of r2) Å2
<r2> 34.186
(<r2>)1/2 5.847

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-168.549886
Energy at 298.15K-168.550334
HF Energy-168.549886
Nuclear repulsion energy60.699691
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 B3PW91/6-311G*
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' 3513 3382 233.90      
2 A' 2361 2273 372.44      
3 A' 1330 1281 118.71      
4 A' 579 558 0.42      
5 A' 158 152 97.52      
6 A" 571 549 5.90      

Unscaled Zero Point Vibrational Energy (zpe) 4256.0 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 4097.3 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 B3PW91/6-311G*
B
0.38598

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.014 -1.176 0.000
N2 0.000 0.017 0.000
C3 0.015 1.176 0.000
H4 0.025 2.238 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19322.35253.4148
N21.19321.15932.2216
C32.35251.15931.0622
H43.41482.22161.0622

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 179.955 N2 C3 H4 179.851
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.348      
2 N 0.095      
3 C -0.076      
4 H 0.329      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.034 3.097 0.000 3.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.639 0.028 0.000
y 0.028 -13.785 0.000
z 0.000 0.000 -16.639
Traceless
 xyz
x -1.427 0.028 0.000
y 0.028 2.854 0.000
z 0.000 0.000 -1.427
Polar
3z2-r2-2.854
x2-y2-2.854
xy0.028
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.459 0.052 0.000
y 0.052 5.626 0.000
z 0.000 0.000 1.458


<r2> (average value of r2) Å2
<r2> 34.182
(<r2>)1/2 5.847