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

using model chemistry: TPSSh/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 TPSSh/6-31G
 hartrees
Energy at 0K-491.582554
Energy at 298.15K-491.583047
HF Energy-491.582554
Nuclear repulsion energy78.074183
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/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' 3826 3681 410.64      
2 A' 2112 2032 531.17      
3 A' 797 767 10.18      
4 A' 435 419 32.36      
5 A' 413 398 352.39      
6 A" 436 419 7.31      

Unscaled Zero Point Vibrational Energy (zpe) 4010.0 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 3858.0 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/6-31G
ABC
85.49617 0.18568 0.18528

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.137 1.713 0.000
C2 0.000 0.521 0.000
S3 0.044 -1.110 0.000
H4 0.256 2.632 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20012.82870.9992
C21.20011.63132.1261
S32.82871.63133.7473
H40.99922.12613.7473

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 174.974 C2 N1 H4 150.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.556      
2 C 0.069      
3 S 0.105      
4 H 0.382      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.868 3.147 0.000 3.265
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 2.053 -0.374 0.000
y -0.374 8.820 0.000
z 0.000 0.000 1.944


<r2> (average value of r2) Å2
<r2> 63.124
(<r2>)1/2 7.945

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at TPSSh/6-31G
 hartrees
Energy at 0K-491.581939
Energy at 298.15K 
HF Energy-491.581939
Nuclear repulsion energy78.095951
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/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 3928 3779 641.56      
2 Σ 2159 2077 538.26      
3 Σ 786 756 21.41      
4 Π 433 417 6.30      
4 Π 433 417 6.30      
5 Π 297i 286i 240.30      
5 Π 297i 286i 240.30      

Unscaled Zero Point Vibrational Energy (zpe) 3572.3 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 3436.9 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 TPSSh/6-31G
B
0.18470

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.712
C2 0.000 0.000 -0.523
S3 0.000 0.000 1.114
H4 0.000 0.000 -2.704

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.18972.82640.9921
C21.18971.63672.1819
S32.82641.63673.8185
H40.99212.18193.8185

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/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.571      
2 C 0.089      
3 S 0.087      
4 H 0.395      


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 -3.666 3.666
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 1.941 0.000 0.000
y 0.000 1.941 0.000
z 0.000 0.000 8.671


<r2> (average value of r2) Å2
<r2> 63.193
(<r2>)1/2 7.949