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

using model chemistry: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-491.397315
Energy at 298.15K-491.398040
HF Energy-491.252854
Nuclear repulsion energy79.395328
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 B2PLYP/6-31+G**
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' 3732 3554 259.95      
2 A' 2034 1937 711.90      
3 A' 878 836 2.37      
4 A' 651 620 385.89      
5 A' 447 426 61.84      
6 A" 466 443 6.38      

Unscaled Zero Point Vibrational Energy (zpe) 4104.0 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 3908.6 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 B2PLYP/6-31+G**
ABC
36.56190 0.19388 0.19286

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.181 1.695 0.000
C2 0.000 0.495 0.000
S3 0.051 -1.082 0.000
H4 0.452 2.476 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21342.78631.0062
C21.21341.57772.0325
S32.78631.57773.5809
H41.00622.03253.5809

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 173.264 C2 N1 H4 132.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.418      
2 C 0.063      
3 S 0.021      
4 H 0.334      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.215 1.694 0.000 2.085
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.960 3.240 0.000
y 3.240 -19.761 0.000
z 0.000 0.000 -25.651
Traceless
 xyz
x -2.253 3.240 0.000
y 3.240 5.544 0.000
z 0.000 0.000 -3.291
Polar
3z2-r2-6.582
x2-y2-5.198
xy3.240
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.086 -0.478 0.000
y -0.478 10.015 0.000
z 0.000 0.000 3.014


<r2> (average value of r2) Å2
<r2> 61.563
(<r2>)1/2 7.846