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

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-491.417802
Energy at 298.15K-491.418545
HF Energy-491.417802
Nuclear repulsion energy79.405094
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-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' 3587 3546 190.85      
2 A' 1997 1975 628.61      
3 A' 866 857 1.08      
4 A' 664 656 309.05      
5 A' 449 444 51.34      
6 A" 472 467 6.06      

Unscaled Zero Point Vibrational Energy (zpe) 4016.9 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 3971.9 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-pVTZ
ABC
34.09006 0.19414 0.19304

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.168 1.696 0.000
C2 0.000 0.496 0.000
S3 0.042 -1.082 0.000
H4 0.502 2.456 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21242.78591.0126
C21.21241.57782.0231
S32.78591.57783.5669
H41.01262.02313.5669

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 173.560 C2 N1 H4 130.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.120      
2 C -0.114      
3 S 0.037      
4 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.042 1.481 0.000 1.811
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.611 2.917 0.000
y 2.917 -19.620 0.000
z 0.000 0.000 -25.414
Traceless
 xyz
x -2.094 2.917 0.000
y 2.917 5.392 0.000
z 0.000 0.000 -3.298
Polar
3z2-r2-6.597
x2-y2-4.991
xy2.917
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.512 -0.239 0.000
y -0.239 10.111 0.000
z 0.000 0.000 4.471


<r2> (average value of r2) Å2
<r2> 61.342
(<r2>)1/2 7.832