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

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-491.709117
Energy at 298.15K-491.709885
HF Energy-491.709117
Nuclear repulsion energy79.999472
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 B3LYP/Def2TZVPP
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' 3678 3541 237.32      
2 A' 2045 1968 729.33      
3 A' 882 849 2.49      
4 A' 654 629 335.07      
5 A' 464 446 79.79      
6 A" 495 476 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 4108.4 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 3954.8 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 B3LYP/Def2TZVPP
ABC
36.37199 0.19689 0.19583

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.139 1.685 0.000
C2 0.000 0.493 0.000
S3 0.028 -1.075 0.000
H4 0.524 2.440 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20022.76501.0043
C21.20021.56812.0158
S32.76501.56813.5492
H41.00432.01583.5492

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 174.369 C2 N1 H4 132.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.174      
2 C 0.136      
3 S -0.173      
4 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.133 1.564 0.000 1.931
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.432 3.044 0.000
y 3.044 -19.607 0.000
z 0.000 0.000 -25.269
Traceless
 xyz
x -1.994 3.044 0.000
y 3.044 5.243 0.000
z 0.000 0.000 -3.249
Polar
3z2-r2-6.498
x2-y2-4.825
xy3.044
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.476 -0.178 0.000
y -0.178 9.394 0.000
z 0.000 0.000 3.372


<r2> (average value of r2) Å2
<r2> 60.623
(<r2>)1/2 7.786