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All results from a given calculation for HNCS (Isothiocyanic acid)

using model chemistry: PBEPBEultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-491.381635
Energy at 298.15K-491.382371
HF Energy-491.381635
Nuclear repulsion energy78.845961
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 PBEPBEultrafine/aug-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' 3570 3548 173.12      
2 A' 1990 1978 615.53      
3 A' 865 859 0.62      
4 A' 691 687 304.17      
5 A' 436 434 43.93      
6 A" 460 457 7.60      

Unscaled Zero Point Vibrational Energy (zpe) 4005.6 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 3981.2 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
31.44990 0.19160 0.19044

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.195 1.707 0.000
C2 0.000 0.500 0.000
S3 0.055 -1.088 0.000
H4 0.491 2.460 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.22302.80631.0183
C21.22301.58872.0207
S32.80631.58873.5747
H41.01832.02073.5747

picture of Isothiocyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 S3 172.797 C2 N1 H4 128.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.003      
2 C -0.159      
3 S 0.155      
4 H 0.007      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.064 1.432 0.000 1.783
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.713 2.968 0.000
y 2.968 -19.800 0.000
z 0.000 0.000 -25.524
Traceless
 xyz
x -2.051 2.968 0.000
y 2.968 5.318 0.000
z 0.000 0.000 -3.267
Polar
3z2-r2-6.534
x2-y2-4.913
xy2.968
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.353 -0.306 0.000
y -0.306 10.182 0.000
z 0.000 0.000 4.299


<r2> (average value of r2) Å2
<r2> 62.027
(<r2>)1/2 7.876