return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HCS (Thioformyl radical)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

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

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-436.223943
Energy at 298.15K-436.223748
HF Energy-435.926622
Nuclear repulsion energy40.281345
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 MP2/Def2TZVPP
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' 3176 3022 33.48      
2 A' 1725 1641 264.57      
3 A' 787 749 172.69      

Unscaled Zero Point Vibrational Energy (zpe) 2843.6 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 2705.7 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 MP2/Def2TZVPP
ABC
32.91139 0.72838 0.71260

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.034 1.009 0.000
H2 -0.755 1.757 0.000
S3 0.034 -0.488 0.000

Atom - Atom Distances (Å)
  C1 H2 S3
C11.08681.4978
H21.08682.3796
S31.49782.3796

picture of Thioformyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 S3 133.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-436.213720
Energy at 298.15K 
HF Energy-435.915475
Nuclear repulsion energy40.309040
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 MP2/Def2TZVPP
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 3511 3341 5.92      
2 Σ 1715 1632 298.11      
3 Π 1129 1074 30.42      
3 Π 807i 768i 156.24      

Unscaled Zero Point Vibrational Energy (zpe) 2773.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 2639.3 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 MP2/Def2TZVPP
B
0.70191

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.010
H2 0.000 0.000 -1.991
S3 0.000 0.000 0.503

Atom - Atom Distances (Å)
  C1 H2 S3
C10.98151.5127
H20.98152.4942
S31.51272.4942

picture of Thioformyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 S3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability