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

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-491.644037
Energy at 298.15K-491.644800
HF Energy-491.644037
Nuclear repulsion energy80.152809
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 B1B95/6-31G(2df,p)
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' 3754 3595 277.52      
2 A' 2110 2021 693.85      
3 A' 895 857 4.80      
4 A' 619 593 301.72      
5 A' 465 445 130.29      
6 A" 507 486 1.21      

Unscaled Zero Point Vibrational Energy (zpe) 4175.3 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 3998.6 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 B1B95/6-31G(2df,p)
ABC
38.06217 0.19754 0.19652

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.141 1.681 0.000
C2 0.000 0.492 0.000
S3 0.030 -1.073 0.000
H4 0.504 2.448 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19742.75931.0015
C21.19741.56512.0195
S32.75931.56513.5522
H41.00152.01953.5522

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 174.348 C2 N1 H4 133.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.519      
2 C 0.402      
3 S -0.210      
4 H 0.326      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.086 1.860 0.000 2.153
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.979 2.922 0.000
y 2.922 -18.760 0.000
z 0.000 0.000 -24.767
Traceless
 xyz
x -2.215 2.922 0.000
y 2.922 5.613 0.000
z 0.000 0.000 -3.398
Polar
3z2-r2-6.797
x2-y2-5.219
xy2.922
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.072 -0.131 0.000
y -0.131 8.758 0.000
z 0.000 0.000 2.962


<r2> (average value of r2) Å2
<r2> 60.104
(<r2>)1/2 7.753