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

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-491.657266
Energy at 298.15K-491.658023
HF Energy-491.657266
Nuclear repulsion energy79.629071
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/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' 3693 3550 238.63      
2 A' 2089 2008 666.57      
3 A' 896 861 1.89      
4 A' 657 631 313.22      
5 A' 449 432 82.48      
6 A" 487 468 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 4134.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 3974.3 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/cc-pVDZ
ABC
32.73835 0.19531 0.19416

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.146 1.694 0.000
C2 0.000 0.497 0.000
S3 0.029 -1.079 0.000
H4 0.554 2.423 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20622.77861.0107
C21.20621.57612.0044
S32.77861.57613.5412
H41.01072.00443.5412

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 174.109 C2 N1 H4 129.206
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.182      
2 C 0.101      
3 S -0.076      
4 H 0.156      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.191 1.737 0.000 2.106
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.909 3.065 0.000
y 3.065 -19.117 0.000
z 0.000 0.000 -24.800
Traceless
 xyz
x -1.950 3.065 0.000
y 3.065 5.237 0.000
z 0.000 0.000 -3.287
Polar
3z2-r2-6.574
x2-y2-4.792
xy3.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.417 -0.112 0.000
y -0.112 8.559 0.000
z 0.000 0.000 2.229


<r2> (average value of r2) Å2
<r2> 60.660
(<r2>)1/2 7.788