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

using model chemistry: HSEh1PBE/6-31G

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 HSEh1PBE/6-31G
 hartrees
Energy at 0K-491.334794
Energy at 298.15K-491.335114
HF Energy-491.334794
Nuclear repulsion energy78.414138
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 HSEh1PBE/6-31G
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' 3932 3761 591.80      
2 A' 2182 2087 570.66      
3 A' 804 769 19.56      
4 A' 440 421 1.64      
5 A' 250 239 319.67      
6 A" 441 422 2.95      

Unscaled Zero Point Vibrational Energy (zpe) 4024.3 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 3849.7 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 HSEh1PBE/6-31G
ABC
212.35651 0.18666 0.18650

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.074 1.706 0.000
C2 0.000 0.520 0.000
S3 0.021 -1.108 0.000
H4 0.186 2.664 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.18822.81520.9926
C21.18821.62782.1522
S32.81521.62783.7755
H40.99262.15223.7755

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 177.170 C2 N1 H4 161.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.568      
2 C 0.075      
3 S 0.095      
4 H 0.398      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.600 3.483 0.000 3.534
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.133 1.608 0.000
y 1.608 -16.903 0.000
z 0.000 0.000 -25.231
Traceless
 xyz
x -4.066 1.608 0.000
y 1.608 8.280 0.000
z 0.000 0.000 -4.213
Polar
3z2-r2-8.427
x2-y2-8.231
xy1.608
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.977 -0.216 0.000
y -0.216 8.674 0.000
z 0.000 0.000 1.938


<r2> (average value of r2) Å2
<r2> 62.808
(<r2>)1/2 7.925

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-491.334714
Energy at 298.15K 
HF Energy-491.334714
Nuclear repulsion energy78.419142
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 HSEh1PBE/6-31G
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 3969 3796 692.41      
2 Σ 2200 2105 566.61      
3 Σ 799 764 25.21      
4 Π 440 421 2.80      
4 Π 440 421 2.80      
5 Π 177i 170i 251.07      
5 Π 177i 170i 251.07      

Unscaled Zero Point Vibrational Energy (zpe) 3746.5 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 3583.9 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 HSEh1PBE/6-31G
B
0.18625

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.705
C2 0.000 0.000 -0.521
S3 0.000 0.000 1.110
H4 0.000 0.000 -2.695

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.18422.81430.9899
C21.18421.63022.1741
S32.81431.63023.8043
H40.98992.17413.8043

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 HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.573      
2 C 0.082      
3 S 0.088      
4 H 0.403      


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 -3.698 3.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.225 0.000 0.000
y 0.000 -25.225 0.000
z 0.000 0.000 -16.363
Traceless
 xyz
x -4.431 0.000 0.000
y 0.000 -4.431 0.000
z 0.000 0.000 8.861
Polar
3z2-r217.723
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.937 0.000 0.000
y 0.000 1.937 0.000
z 0.000 0.000 8.606


<r2> (average value of r2) Å2
<r2> 62.839
(<r2>)1/2 7.927