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

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G
 hartrees
Energy at 0K-490.575403
Energy at 298.15K-490.575769
HF Energy-490.315975
Nuclear repulsion energy77.630773
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 MP3=FULL/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' 3911 3911 589.27      
2 A' 2169 2169 675.06      
3 A' 759 759 31.30      
4 A' 401 401 10.72      
5 A' 368 368 387.41      
6 A" 397 397 14.38      

Unscaled Zero Point Vibrational Energy (zpe) 4002.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4002.0 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 MP3=FULL/6-31G
ABC
159.30583 0.18281 0.18260

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.123 1.718 0.000
C2 0.000 0.536 0.000
S3 0.045 -1.120 0.000
H4 0.144 2.678 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.18882.84350.9958
C21.18881.65672.1467
S32.84351.65673.7993
H40.99582.14673.7993

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 175.622 C2 N1 H4 158.557
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-490.575113
Energy at 298.15K 
HF Energy-490.317334
Nuclear repulsion energy77.578461
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 MP3=FULL/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 3944 3944 713.73      
2 Σ 2194 2194 644.33      
3 Σ 743 743 49.70      
4 Π 392 392 13.70      
4 Π 392 392 13.70      
5 Π 289i 289i 242.89      
5 Π 289i 289i 242.89      

Unscaled Zero Point Vibrational Energy (zpe) 3543.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3543.4 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 MP3=FULL/6-31G
B
0.18195

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.721
C2 0.000 0.000 -0.538
S3 0.000 0.000 1.124
H4 0.000 0.000 -2.714

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.18302.84500.9935
C21.18301.66202.1765
S32.84501.66203.8385
H40.99352.17653.8385

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