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

using model chemistry: B1B95/6-311G**

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 B1B95/6-311G**
 hartrees
Energy at 0K-168.560735
Energy at 298.15K 
HF Energy-168.560735
Nuclear repulsion energy60.880805
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 B1B95/6-311G**
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 3538 3397 263.07 23.19 0.24 0.39
2 Σ 2378 2283 390.06 29.53 0.13 0.23
3 Σ 1342 1289 127.83 18.98 0.29 0.45
4 Π 586 563 0.22 0.60 0.75 0.86
4 Π 586 563 0.22 0.60 0.75 0.86
5 Π 277 266 88.50 4.33 0.75 0.86
5 Π 277 266 88.50 4.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4492.5 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 4313.3 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 B1B95/6-311G**
B
0.38828

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.173
N2 0.000 0.000 -0.017
C3 0.000 0.000 -1.173
H4 0.000 0.000 -2.231

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.18982.34563.4041
N21.18981.15592.2143
C32.34561.15591.0584
H43.40412.21431.0584

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 B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.352      
2 N 0.098      
3 C 0.045      
4 H 0.209      


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 -3.104 3.104
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.550 0.000 0.000
y 0.000 -16.550 0.000
z 0.000 0.000 -13.920
Traceless
 xyz
x -1.315 0.000 0.000
y 0.000 -1.315 0.000
z 0.000 0.000 2.630
Polar
3z2-r25.261
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 1.449 0.000 0.000
y 0.000 1.449 0.000
z 0.000 0.000 5.621


<r2> (average value of r2) Å2
<r2> 34.027
(<r2>)1/2 5.833

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-168.560737
Energy at 298.15K-168.561372
HF Energy-168.560737
Nuclear repulsion energy60.877435
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 B1B95/6-311G**
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' 3539 3398 262.83      
2 A' 2379 2284 390.02      
3 A' 1343 1289 127.76      
4 A' 587 563 0.21      
5 A' 276 265 88.51      
6 A" 583 560 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 4352.6 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 4179.0 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 B1B95/6-311G**
B
0.38824

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.007 -1.173 0.000
N2 0.000 0.017 0.000
C3 0.007 1.173 0.000
H4 0.012 2.231 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.18982.34583.4042
N21.18981.15602.2144
C32.34581.15601.0585
H43.40422.21441.0585

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 179.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.352      
2 N 0.098      
3 C 0.045      
4 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.016 3.105 0.000 3.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.551 0.011 0.000
y 0.011 -13.919 0.000
z 0.000 0.000 -16.551
Traceless
 xyz
x -1.316 0.011 0.000
y 0.011 2.631 0.000
z 0.000 0.000 -1.316
Polar
3z2-r2-2.632
x2-y2-2.631
xy0.011
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.449 0.025 0.000
y 0.025 5.621 0.000
z 0.000 0.000 1.449


<r2> (average value of r2) Å2
<r2> 34.030
(<r2>)1/2 5.833