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

using model chemistry: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
1 2 no C*V 1Σ

Conformer 1 (CS)

Jump to S1C2
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-491.710457
Energy at 298.15K-491.711229
HF Energy-491.710457
Nuclear repulsion energy79.772868
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 TPSSh/cc-pVTZ
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' 3658 3542 207.70      
2 A' 2037 1973 656.25      
3 A' 877 849 1.59      
4 A' 670 649 342.81      
5 A' 461 446 64.05      
6 A" 487 472 3.03      

Unscaled Zero Point Vibrational Energy (zpe) 4095.1 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 3965.3 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 TPSSh/cc-pVTZ
ABC
34.62201 0.19588 0.19478

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.157 1.689 0.000
C2 0.000 0.495 0.000
S3 0.037 -1.077 0.000
H4 0.514 2.439 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20392.77311.0064
C21.20391.57312.0105
S32.77311.57313.5487
H41.00642.01053.5487

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 173.830 C2 N1 H4 130.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.148      
2 C 0.079      
3 S -0.133      
4 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.107 1.688 0.000 2.018
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.244 -0.193 0.000
y -0.193 9.216 0.000
z 0.000 0.000 3.099


<r2> (average value of r2) Å2
<r2> 60.690
(<r2>)1/2 7.790

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-491.705925
Energy at 298.15K 
HF Energy-491.705925
Nuclear repulsion energy79.832281
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 TPSSh/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3888 3764 678.61      
2 Σ 2154 2086 700.04      
3 Σ 859 831 24.99      
4 Π 484 469 8.28      
4 Π 484 469 8.28      
5 Π 495i 480i 144.46      
5 Π 495i 480i 144.46      

Unscaled Zero Point Vibrational Energy (zpe) 3439.0 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 3330.0 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 TPSSh/cc-pVTZ
B
0.19350

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.676
C2 0.000 0.000 -0.497
S3 0.000 0.000 1.087
H4 0.000 0.000 -2.667

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.17882.76290.9910
C21.17881.58412.1698
S32.76291.58413.7538
H40.99102.16983.7538

picture of Isothiocyanic acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 S3 180.000 C2 N1 H4 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.134      
2 C 0.090      
3 S -0.193      
4 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.081 3.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.076 0.000 0.000
y 0.000 3.076 0.000
z 0.000 0.000 9.015


<r2> (average value of r2) Å2
<r2> 60.853
(<r2>)1/2 7.801