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 NHCHSH (Methanimidothioic acid)

using model chemistry: CCSD(T)/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31G**
 hartrees
Energy at 0K-492.029441
Energy at 298.15K-492.033129
HF Energy-491.552832
Nuclear repulsion energy93.725223
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 CCSD(T)/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' 3503 3323        
2 A' 3134 2973        
3 A' 2765 2623        
4 A' 1659 1573        
5 A' 1420 1346        
6 A' 1233 1170        
7 A' 966 916        
8 A' 733 695        
9 A' 435 413        
10 A" 1070 1015        
11 A" 736 698        
12 A" 361 342        

Unscaled Zero Point Vibrational Energy (zpe) 9007.2 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 8543.3 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 CCSD(T)/6-31G**
ABC
1.89901 0.20042 0.18129

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.255 1.039 0.000
C2 0.000 0.777 0.000
S3 -0.622 -0.879 0.000
H4 1.384 2.054 0.000
H5 -0.807 1.513 0.000
H6 0.593 -1.437 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.28202.68391.02252.11572.5632
C21.28201.76881.88331.09242.2917
S32.68391.76883.55342.39891.3371
H41.02251.88333.55342.25743.5791
H52.11571.09242.39892.25743.2651
H62.56322.29171.33713.57913.2651

picture of Methanimidothioic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 S3 122.419 N1 C2 H5 125.823
C2 N1 H4 109.104 C2 S3 H6 94.063
S3 C2 H5 111.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability