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

using model chemistry: wB97X-D/3-21G*

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 wB97X-D/3-21G*
 hartrees
Energy at 0K-167.568892
Energy at 298.15K 
HF Energy-167.568892
Nuclear repulsion energy59.369761
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 wB97X-D/3-21G*
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 3561 3375 233.56 25.52 0.21 0.35
2 Σ 2293 2174 180.66 21.54 0.23 0.37
3 Σ 1137 1078 90.40 12.14 0.35 0.52
4 Π 650 616 120.78 2.62 0.75 0.86
4 Π 650 616 120.78 2.62 0.75 0.86
5 Π 552 523 3.33 0.51 0.75 0.86
5 Π 552 523 3.33 0.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4698.0 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 4452.7 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 wB97X-D/3-21G*
B
0.36933

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.209
N2 0.000 0.000 -0.033
C3 0.000 0.000 -1.198
H4 0.000 0.000 -2.257

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.24272.40713.4665
N21.24271.16442.2238
C32.40711.16441.0594
H43.46652.22381.0594

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 wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.395      
2 N -0.142      
3 C 0.167      
4 H 0.369      


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 -3.274 3.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.493 0.000 0.000
y 0.000 -16.493 0.000
z 0.000 0.000 -13.865
Traceless
 xyz
x -1.314 0.000 0.000
y 0.000 -1.314 0.000
z 0.000 0.000 2.627
Polar
3z2-r25.255
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 0.916 0.000 0.000
y 0.000 0.916 0.000
z 0.000 0.000 5.199


<r2> (average value of r2) Å2
<r2> 35.165
(<r2>)1/2 5.930

Conformer 2 (CS)

Jump to S1C1
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-167.568886
Energy at 298.15K 
HF Energy-167.568886
Nuclear repulsion energy59.368046
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 wB97X-D/3-21G*
Rotational Constants (cm-1) from geometry optimized at wB97X-D/3-21G*
B
0.36933

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.033 0.612 0.000
N2 0.000 -0.046 0.000
C3 1.069 -0.549 0.000
H4 1.852 -1.274 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.22512.40153.4471
N21.22511.18142.2222
C32.40151.18141.0672
H43.44712.22221.0672

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 172.694 N2 C3 H4 162.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.397      
2 N -0.062      
3 C 0.110      
4 H 0.349      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.898 0.035 0.000 2.898
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.967 -1.059 0.000
y -1.059 -16.835 0.000
z 0.000 0.000 -16.608
Traceless
 xyz
x 2.754 -1.059 0.000
y -1.059 -1.548 0.000
z 0.000 0.000 -1.206
Polar
3z2-r2-2.413
x2-y22.868
xy-1.059
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.916 0.000 0.000
y 0.000 0.916 0.000
z 0.000 0.000 5.199


<r2> (average value of r2) Å2
<r2> 35.213
(<r2>)1/2 5.934