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

using model chemistry: QCISD/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-492.109527
Energy at 298.15K-492.113215
HF Energy-491.567261
Nuclear repulsion energy94.007515
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(2df,p)
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' 3525 3339 2.18      
2 A' 3126 2962 22.52      
3 A' 2743 2599 1.28      
4 A' 1688 1599 121.24      
5 A' 1405 1331 24.73      
6 A' 1221 1157 31.26      
7 A' 943 894 46.23      
8 A' 724 686 61.86      
9 A' 425 403 19.21      
10 A" 1086 1029 4.96      
11 A" 743 704 64.22      
12 A" 368 349 33.91      

Unscaled Zero Point Vibrational Energy (zpe) 8998.5 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 8525.1 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(2df,p)
ABC
1.91684 0.20153 0.18236

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.242 1.044 0.000
C2 0.000 0.776 0.000
S3 -0.616 -0.880 0.000
H4 1.374 2.055 0.000
H5 -0.813 1.507 0.000
H6 0.600 -1.445 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27022.67421.01932.10562.5707
C21.27021.76671.87711.09282.3011
S32.67421.76673.54572.39461.3412
H41.01931.87713.54572.25443.5846
H52.10561.09282.39462.25443.2727
H62.57072.30111.34123.58463.2727

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 122.582 N1 C2 H5 125.857
C2 N1 H4 109.656 C2 S3 H6 94.539
S3 C2 H5 111.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability