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All results from a given calculation for NHCHSH (Methanimidothioic acid)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-491.985874
Energy at 298.15K-491.989568
HF Energy-491.543479
Nuclear repulsion energy93.758241
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3457 3292 0.26      
2 A' 3112 2964 30.48      
3 A' 2728 2598 2.66      
4 A' 1691 1610 111.19      
5 A' 1432 1364 23.11      
6 A' 1245 1185 31.06      
7 A' 968 922 49.46      
8 A' 740 705 62.25      
9 A' 439 418 19.06      
10 A" 1081 1030 4.97      
11 A" 745 709 77.12      
12 A" 363 346 42.15      

Unscaled Zero Point Vibrational Energy (zpe) 9000.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 8570.8 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/6-31G*
ABC
1.89931 0.20086 0.18165

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.250 1.040 0.000
C2 0.000 0.776 0.000
S3 -0.620 -0.879 0.000
H4 1.390 2.057 0.000
H5 -0.812 1.514 0.000
H6 0.602 -1.446 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27732.67961.02592.11502.5691
C21.27731.76701.89001.09712.3017
S32.67961.76703.55772.40021.3475
H41.02591.89003.55772.26743.5900
H52.11501.09712.40022.26743.2799
H62.56912.30171.34753.59003.2799

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 122.510 N1 C2 H5 125.769
C2 N1 H4 109.804 C2 S3 H6 94.331
S3 C2 H5 111.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability