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

using model chemistry: PBE1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31G**
 hartrees
Energy at 0K-491.368175
Energy at 298.15K-491.368926
HF Energy-491.368175
Nuclear repulsion energy79.714301
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 PBE1PBE/6-31G**
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' 3735 3560 248.99      
2 A' 2108 2009 684.59      
3 A' 897 855 3.86      
4 A' 648 618 372.04      
5 A' 456 434 81.19      
6 A" 487 464 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 4165.1 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 3969.8 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 PBE1PBE/6-31G**
ABC
36.40643 0.19547 0.19442

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.155 1.689 0.000
C2 0.000 0.496 0.000
S3 0.037 -1.078 0.000
H4 0.497 2.456 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20402.77461.0063
C21.20401.57442.0223
S32.77461.57443.5640
H41.00632.02233.5640

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 173.930 C2 N1 H4 132.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.605      
2 C 0.268      
3 S -0.057      
4 H 0.393      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.234 1.978 0.000 2.331
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.199 3.200 0.000
y 3.200 -19.042 0.000
z 0.000 0.000 -25.002
Traceless
 xyz
x -2.177 3.200 0.000
y 3.200 5.559 0.000
z 0.000 0.000 -3.382
Polar
3z2-r2-6.763
x2-y2-5.158
xy3.200
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.475 -0.224 0.000
y -0.224 8.715 0.000
z 0.000 0.000 2.298


<r2> (average value of r2) Å2
<r2> 60.738
(<r2>)1/2 7.793