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All results from a given calculation for CH3CSNH2 (Ethanethioamide)

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-528.418634
Energy at 298.15K 
HF Energy-528.030085
Nuclear repulsion energy154.493853
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 CISD/3-21G*
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 3726 3482 42.97      
2 A 3601 3365 86.66      
3 A 3247 3034 1.13      
4 A 3165 2958 11.15      
5 A 3110 2906 10.68      
6 A 1758 1643 138.80      
7 A 1602 1497 10.96      
8 A 1596 1491 9.47      
9 A 1500 1402 11.98      
10 A 1445 1350 379.71      
11 A 1379 1289 37.19      
12 A 1120 1046 2.93      
13 A 1089 1017 28.40      
14 A 1017 950 40.19      
15 A 737 689 9.80      
16 A 708 662 160.18      
17 A 552 516 119.39      
18 A 529 494 45.98      
19 A 447 418 1.10      
20 A 395 369 2.51      
21 A 67 62 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 16395.0 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 15319.5 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 CISD/3-21G*
ABC
0.32105 0.16443 0.11102

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.275 0.067 -0.000
S2 -1.369 -0.115 0.000
C3 1.238 -1.119 0.000
N4 0.884 1.270 0.000
H5 0.673 -2.046 -0.001
H6 1.876 -1.080 -0.888
H7 1.874 -1.081 0.890
H8 1.889 1.360 -0.000
H9 0.322 2.109 -0.000

Atom - Atom Distances (Å)
  C1 S2 C3 N4 H5 H6 H7 H8 H9
C11.65361.52841.34852.15052.16072.16072.06862.0424
S21.65362.79372.64482.81013.49953.49873.57662.7941
C31.52842.79372.41541.08591.09411.09412.56363.3556
N41.34852.64482.41543.32302.70122.70191.00911.0097
H52.15052.81011.08593.32301.77971.77973.61724.1699
H62.16073.49951.09412.70121.77971.77802.59733.6570
H72.16073.49871.09412.70191.77971.77802.59873.6575
H82.06863.57662.56361.00913.61722.59732.59871.7365
H92.04242.79413.35561.00974.16993.65703.65751.7365

picture of Ethanethioamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.530 C1 C3 H6 109.853
C1 C3 H7 109.848 C1 N4 H8 122.003
C1 N4 H9 119.317 S2 C1 C3 122.752
S2 C1 N4 123.203 C3 C1 N4 114.045
H5 C3 H6 109.451 H5 C3 H7 109.449
H6 C3 H7 108.693 H8 N4 H9 118.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability