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

using model chemistry: LSDA/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 LSDA/cc-pVDZ
 hartrees
Energy at 0K-167.706328
Energy at 298.15K 
HF Energy-167.706328
Nuclear repulsion energy60.332532
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 LSDA/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 3460 3422 269.42      
2 Σ 2361 2335 294.08      
3 Σ 1353 1338 70.30      
4 Π 571 564 0.24      
4 Π 571 564 0.24      
5 Π 145i 144i 88.37      
5 Π 145i 144i 88.37      

Unscaled Zero Point Vibrational Energy (zpe) 4012.3 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 3968.2 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 LSDA/cc-pVDZ
B
0.38110

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

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 -0.010
C3 0.000 0.000 -1.186
H4 0.000 0.000 -2.264

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.19082.36683.4453
N21.19081.17602.2545
C32.36681.17601.0785
H43.44532.25451.0785

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 LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.224      
2 N 0.204      
3 C -0.109      
4 H 0.130      


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 -2.534 2.534
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.534 0.000 0.000
y 0.000 -16.534 0.000
z 0.000 0.000 -13.750
Traceless
 xyz
x -1.392 0.000 0.000
y 0.000 -1.392 0.000
z 0.000 0.000 2.784
Polar
3z2-r25.568
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 1.420 0.000 0.000
y 0.000 1.420 0.000
z 0.000 0.000 5.593


<r2> (average value of r2) Å2
<r2> 34.470
(<r2>)1/2 5.871

Conformer 2 (CS)

Jump to S1C1
Energy calculated at LSDA/cc-pVDZ
 hartrees
Energy at 0K-167.706377
Energy at 298.15K-167.706901
HF Energy-167.706377
Nuclear repulsion energy60.327449
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 LSDA/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' 3435 3397 240.53      
2 A' 2350 2324 304.33      
3 A' 1355 1340 63.30      
4 A' 569 562 0.73      
5 A' 208 206 111.57      
6 A" 570 564 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 4243.3 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 4196.6 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 LSDA/cc-pVDZ
ABC
236.17212 0.38226 0.38164

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.878 -0.787 0.000
N2 0.000 0.015 0.000
C3 0.916 0.757 0.000
H4 1.526 1.649 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4
O11.18962.36733.4226
N21.18961.17882.2353
C32.36731.17881.0803
H43.42262.23531.0803

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 176.548 N2 C3 H4 163.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.220      
2 N 0.210      
3 C -0.122      
4 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.549 1.886 0.000 2.441
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.884 1.316 0.000
y 1.316 -14.594 0.000
z 0.000 0.000 -16.548
Traceless
 xyz
x -0.313 1.316 0.000
y 1.316 1.621 0.000
z 0.000 0.000 -1.309
Polar
3z2-r2-2.618
x2-y2-1.289
xy1.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.846 2.057 0.000
y 2.057 3.220 0.000
z 0.000 0.000 1.420


<r2> (average value of r2) Å2
<r2> 34.441
(<r2>)1/2 5.869