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/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-492.184080
Energy at 298.15K-492.187782
HF Energy-491.618372
Nuclear repulsion energy94.328832
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/6-311+G(3df,2p)
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' 3523 3323 4.99      
2 A' 3105 2928 19.11      
3 A' 2719 2565 2.08      
4 A' 1679 1583 143.92      
5 A' 1406 1326 21.26      
6 A' 1220 1150 23.67      
7 A' 951 897 53.10      
8 A' 733 691 61.99      
9 A' 430 405 19.95      
10 A" 1079 1018 2.84      
11 A" 739 697 73.67      
12 A" 369 348 27.94      

Unscaled Zero Point Vibrational Energy (zpe) 8975.9 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 8465.2 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/6-311+G(3df,2p)
ABC
1.94270 0.20269 0.18354

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.237 1.044 0.000
C2 0.000 0.768 0.000
S3 -0.614 -0.876 0.000
H4 1.374 2.052 0.000
H5 -0.804 1.505 0.000
H6 0.597 -1.447 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26792.66751.01752.09312.5714
C21.26791.75511.88081.09112.2937
S32.66751.75513.53962.38921.3393
H41.01751.88083.53962.24583.5839
H52.09311.09112.38922.24583.2679
H62.57142.29371.33933.58393.2679

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 123.057 N1 C2 H5 124.900
C2 N1 H4 110.290 C2 S3 H6 94.722
S3 C2 H5 112.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability