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

using model chemistry: B1B95/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-168.530312
Energy at 298.15K 
HF Energy-168.530312
Nuclear repulsion energy60.628688
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/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 3548 3411 272.76 24.67 0.27 0.42
2 Σ 2388 2296 362.28 26.36 0.14 0.24
3 Σ 1353 1300 116.32 18.63 0.29 0.45
4 Π 586 563 0.23 0.66 0.75 0.86
4 Π 586 563 0.23 0.66 0.75 0.86
5 Π 169 162 86.07 2.29 0.75 0.86
5 Π 169 162 86.07 2.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4399.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 4228.8 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 B1B95/cc-pVDZ
B
0.38503

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

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 -0.015
C3 0.000 0.000 -1.178
H4 0.000 0.000 -2.245

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19182.35513.4224
N21.19181.16322.2306
C32.35511.16321.0673
H43.42242.23061.0673

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/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.292      
2 N 0.213      
3 C -0.032      
4 H 0.110      


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 -2.955 2.955
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.423 0.000 0.000
y 0.000 -16.423 0.000
z 0.000 0.000 -13.729
Traceless
 xyz
x -1.347 0.000 0.000
y 0.000 -1.347 0.000
z 0.000 0.000 2.694
Polar
3z2-r25.388
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 1.392 0.000 0.000
y 0.000 1.392 0.000
z 0.000 0.000 5.521


<r2> (average value of r2) Å2
<r2> 34.150
(<r2>)1/2 5.844

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-168.530316
Energy at 298.15K-168.530811
HF Energy-168.530316
Nuclear repulsion energy60.634556
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/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' 3551 3414 272.38      
2 A' 2391 2298 362.51      
3 A' 1354 1302 116.34      
4 A' 586 563 0.25      
5 A' 176 169 86.07      
6 A" 586 563 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 4322.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 4154.5 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/cc-pVDZ
B
0.38511

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.018 -1.177 0.000
N2 0.000 0.015 0.000
C3 0.019 1.178 0.000
H4 0.030 2.245 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19162.35483.4223
N21.19161.16322.2307
C32.35481.16321.0675
H43.42232.23071.0675

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 179.937 N2 C3 H4 179.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.292      
2 N 0.214      
3 C -0.033      
4 H 0.110      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.039 2.953 0.000 2.954
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.423 0.028 0.000
y 0.028 -13.729 0.000
z 0.000 0.000 -16.423
Traceless
 xyz
x -1.346 0.028 0.000
y 0.028 2.693 0.000
z 0.000 0.000 -1.347
Polar
3z2-r2-2.693
x2-y2-2.693
xy0.028
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.393 0.064 0.000
y 0.064 5.520 0.000
z 0.000 0.000 1.392


<r2> (average value of r2) Å2
<r2> 34.145
(<r2>)1/2 5.843