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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-168.553801
Energy at 298.15K 
HF Energy-168.553801
Nuclear repulsion energy59.556901
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 3463 3436 219.56 33.56 0.23 0.37
2 Σ 2276 2258 249.72 16.06 0.18 0.30
3 Σ 1256 1246 76.56 19.75 0.28 0.44
4 Π 540 536 0.82 0.79 0.75 0.86
4 Π 540 536 0.82 0.79 0.75 0.86
5 Π 237i 236i 85.52 1.59 0.75 0.86
5 Π 237i 236i 85.52 1.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3799.7 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 3770.5 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 BLYP/6-31G**
B
0.37152

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 1.200
N2 0.000 0.000 -0.020
C3 0.000 0.000 -1.199
H4 0.000 0.000 -2.267

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.22072.39973.4672
N21.22071.17892.2465
C32.39971.17891.0676
H43.46722.24651.0676

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 -0.438      
2 N 0.178      
3 C 0.060      
4 H 0.200      


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 -2.835 2.835
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.414 0.000 0.000
y 0.000 -16.414 0.000
z 0.000 0.000 -13.593
Traceless
 xyz
x -1.410 0.000 0.000
y 0.000 -1.410 0.000
z 0.000 0.000 2.820
Polar
3z2-r25.641
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 1.366 0.000 0.000
y 0.000 1.366 0.000
z 0.000 0.000 5.570


<r2> (average value of r2) Å2
<r2> 34.963
(<r2>)1/2 5.913

Conformer 2 (CS)

Jump to S1C1
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-168.554196
Energy at 298.15K-168.554846
HF Energy-168.554196
Nuclear repulsion energy59.518393
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' 3398 3372 145.85      
2 A' 2234 2217 271.20      
3 A' 1261 1252 57.77      
4 A' 535 530 5.20      
5 A' 355 352 144.39      
6 A" 538 534 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 4160.4 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 4128.4 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**
ABC
88.40527 0.37431 0.37273

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 -0.922 -0.762 0.000
N2 0.000 0.034 0.000
C3 0.982 0.702 0.000
H4 1.488 1.647 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.21802.40143.4075
N21.21801.18732.1946
C32.40141.18731.0722
H43.40752.19461.0722

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 173.446 N2 C3 H4 152.422
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 -0.417      
2 N 0.248      
3 C -0.011      
4 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.562 2.024 0.000 2.556
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.247 1.209 0.000
y 1.209 -14.329 0.000
z 0.000 0.000 -16.448
Traceless
 xyz
x -0.858 1.209 0.000
y 1.209 2.018 0.000
z 0.000 0.000 -1.160
Polar
3z2-r2-2.321
x2-y2-1.918
xy1.209
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.096 2.026 0.000
y 2.026 3.014 0.000
z 0.000 0.000 1.368


<r2> (average value of r2) Å2
<r2> 34.907
(<r2>)1/2 5.908