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

using model chemistry: QCISD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-490.885329
Energy at 298.15K-490.886067
HF Energy-490.417411
Nuclear repulsion energy78.669486
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 QCISD(T)=FULL/cc-pVDZ
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' 3659 3509        
2 A' 1998 1916        
3 A' 867 831        
4 A' 698 669        
5 A' 435 417        
6 A" 465 445        

Unscaled Zero Point Vibrational Energy (zpe) 4060.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 3893.7 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 QCISD(T)=FULL/cc-pVDZ
ABC
29.13678 0.19084 0.18960

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.180 1.715 0.000
C2 0.000 0.502 0.000
S3 0.045 -1.091 0.000
H4 0.549 2.425 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.22632.81501.0172
C21.22631.59361.9993
S32.81501.59363.5515
H41.01721.99933.5515

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 173.153 C2 N1 H4 125.779
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability