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

using model chemistry: TPSSh/aug-cc-pVTZ

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 TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-168.647525
Energy at 298.15K 
HF Energy-168.647525
Nuclear repulsion energy60.506801
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 TPSSh/aug-cc-pVTZ
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 3498 3376 255.83 34.69 0.23 0.38
2 Σ 2309 2229 409.11 44.59 0.05 0.09
3 Σ 1283 1239 125.51 25.53 0.19 0.33
4 Π 562 543 4.19 0.11 0.75 0.86
4 Π 562 543 4.19 0.11 0.75 0.86
5 Π 51i 50i 73.50 4.74 0.75 0.86
5 Π 51i 50i 73.50 4.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4056.2 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 3915.0 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 TPSSh/aug-cc-pVTZ
B
0.38359

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.181
N2 0.000 0.000 -0.020
C3 0.000 0.000 -1.179
H4 0.000 0.000 -2.239

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20132.36033.4208
N21.20131.15902.2195
C32.36031.15901.0604
H43.42082.21951.0604

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 TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.615      
2 N 0.477      
3 C -0.355      
4 H 0.493      


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 -3.092 3.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.530 0.000 0.000
y 0.000 2.530 0.000
z 0.000 0.000 6.435


<r2> (average value of r2) Å2
<r2> 34.444
(<r2>)1/2 5.869

Conformer 2 (CS)

Jump to S1C1
Energy calculated at TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-168.647526
Energy at 298.15K-168.647898
HF Energy-168.647526
Nuclear repulsion energy60.506010
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 TPSSh/aug-cc-pVTZ
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' 3492 3371 248.01      
2 A' 2306 2226 412.30      
3 A' 1285 1240 122.44      
4 A' 563 543 4.50      
5 A' 119 115 84.26      
6 A" 562 543 4.37      

Unscaled Zero Point Vibrational Energy (zpe) 4163.9 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 4019.0 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 TPSSh/aug-cc-pVTZ
ABC
975.40496 0.38389 0.38374

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.411 -1.107 0.000
N2 0.000 0.021 0.000
C3 0.434 1.097 0.000
H4 0.686 2.127 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.20092.36043.4153
N21.20091.15982.2149
C32.36041.15981.0608
H43.41532.21491.0608

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 178.049 N2 C3 H4 171.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.610      
2 N 0.473      
3 C -0.346      
4 H 0.483      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.911 2.922 0.000 3.061
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.057 1.330 0.000
y 1.330 5.919 0.000
z 0.000 0.000 2.532


<r2> (average value of r2) Å2
<r2> 34.436
(<r2>)1/2 5.868