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All results from a given calculation for HNCO (Isocyanic acid)

using model chemistry: SVWN/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at SVWN/6-311G**
 hartrees
Energy at 0K-167.848061
Energy at 298.15K-167.849047
Nuclear repulsion energy59.261814
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 SVWN/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' 3651 3613 194.91      
2 A' 2390 2365 566.64      
3 A' 1340 1326 0.84      
4 A' 710 703 164.60      
5 A' 554 549 109.48      
6 A" 622 616 2.22      

Unscaled Zero Point Vibrational Energy (zpe) 4633.9 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4585.7 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 SVWN/6-311G**
ABC
32.54903 0.36896 0.36483

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.348 -1.435 0.000
N2 0.397 -1.091 0.000
C3 0.000 0.049 0.000
O4 -0.516 1.097 0.000

Atom - Atom Distances (Å)
  H1 N2 C3 O4
H11.01182.00543.1440
N21.01181.20722.3702
C32.00541.20721.1674
O43.14402.37021.1674

picture of Isocyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N2 C3 129.088 N2 C3 O4 172.971
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.266      
2 N -0.438      
3 C 0.403      
4 O -0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.054 -1.058 0.000 2.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.593 -1.551 0.000
y -1.551 -18.101 0.000
z 0.000 0.000 -16.506
Traceless
 xyz
x 3.710 -1.551 0.000
y -1.551 -3.051 0.000
z 0.000 0.000 -0.659
Polar
3z2-r2-1.318
x2-y24.508
xy-1.551
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.143 -1.121 0.000
y -1.121 4.058 0.000
z 0.000 0.000 1.463


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000