return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: M06-2X/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 M06-2X/6-311G**
 hartrees
Energy at 0K-168.547817
Energy at 298.15K 
HF Energy-168.547817
Nuclear repulsion energy60.807695
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 M06-2X/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 3528 3528 284.72 20.42 0.25 0.40
2 Σ 2381 2381 409.05 39.94 0.15 0.26
3 Σ 1331 1331 167.23 15.88 0.30 0.47
4 Π 595 595 0.00 0.81 0.75 0.86
4 Π 595 595 0.00 0.81 0.75 0.86
5 Π 399 399 87.48 4.03 0.75 0.86
5 Π 399 399 87.48 4.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4613.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4613.3 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 M06-2X/6-311G**
B
0.38747

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.175
N2 0.000 0.000 -0.019
C3 0.000 0.000 -1.172
H4 0.000 0.000 -2.234

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19462.34773.4089
N21.19461.15312.2143
C32.34771.15311.0612
H43.40892.21431.0612

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 M06-2X/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.375      
2 N 0.086      
3 C 0.070      
4 H 0.218      


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 -3.396 3.396
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.704 0.000 0.000
y 0.000 -16.704 0.000
z 0.000 0.000 -13.982
Traceless
 xyz
x -1.361 0.000 0.000
y 0.000 -1.361 0.000
z 0.000 0.000 2.722
Polar
3z2-r25.443
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 1.439 0.000 0.000
y 0.000 1.439 0.000
z 0.000 0.000 5.643


<r2> (average value of r2) Å2
<r2> 34.155
(<r2>)1/2 5.844

Conformer 2 (CS)

Jump to S1C1
Energy calculated at M06-2X/6-311G**
 hartrees
Energy at 0K-168.547820
Energy at 298.15K-168.548623
HF Energy-168.547820
Nuclear repulsion energy60.811703
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 M06-2X/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' 3534 3534 287.77      
2 A' 2381 2381 409.93      
3 A' 1332 1332 165.89      
4 A' 599 599 0.03      
5 A' 414 414 86.82      
6 A" 597 597 1.31      

Unscaled Zero Point Vibrational Energy (zpe) 4428.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4428.5 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 M06-2X/6-311G**
B
0.38752

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.012 -1.175 0.000
N2 0.000 0.019 0.000
C3 0.012 1.172 0.000
H4 0.020 2.233 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19462.34753.4086
N21.19461.15292.2139
C32.34751.15291.0611
H43.40862.21391.0611

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 179.951 N2 C3 H4 179.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.375      
2 N 0.086      
3 C 0.071      
4 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.030 3.396 0.000 3.396
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.703 0.019 0.000
y 0.019 -13.984 0.000
z 0.000 0.000 -16.703
Traceless
 xyz
x -1.359 0.019 0.000
y 0.019 2.718 0.000
z 0.000 0.000 -1.359
Polar
3z2-r2-2.719
x2-y2-2.718
xy0.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.436 0.044 0.000
y 0.044 5.638 0.000
z 0.000 0.000 1.435


<r2> (average value of r2) Å2
<r2> 34.152
(<r2>)1/2 5.844