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

using model chemistry: B2PLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/3-21G*
 hartrees
Energy at 0K-490.150805
Energy at 298.15K-490.154523
HF Energy-490.039881
Nuclear repulsion energy93.648295
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 B2PLYP/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' 3324 3324 1.57 227.14 0.31 0.48
2 A' 3078 3078 34.97 104.62 0.47 0.64
3 A' 2732 2732 0.39 91.59 0.34 0.51
4 A' 1622 1622 86.02 5.44 0.26 0.41
5 A' 1397 1397 25.53 11.63 0.19 0.32
6 A' 1215 1215 67.74 18.18 0.75 0.86
7 A' 967 967 55.93 5.95 0.69 0.81
8 A' 690 690 81.80 6.11 0.30 0.46
9 A' 434 434 13.93 3.68 0.49 0.66
10 A" 1094 1094 1.87 0.52 0.75 0.86
11 A" 754 754 91.12 5.67 0.75 0.86
12 A" 404 404 43.40 3.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8854.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8854.5 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 B2PLYP/3-21G*
ABC
1.87717 0.20099 0.18155

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.257 1.025 0.000
C2 0.000 0.782 0.000
S3 -0.628 -0.873 0.000
H4 1.477 2.035 0.000
H5 -0.818 1.507 0.000
H6 0.594 -1.430 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.28052.67551.03402.13022.5428
C21.28051.77081.93651.09242.2908
S32.67551.77083.59032.38761.3434
H41.03401.93653.59032.35433.5758
H52.13021.09242.38762.35433.2586
H62.54282.29081.34343.57583.2586

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 121.697 N1 C2 H5 127.543
C2 N1 H4 113.157 C2 S3 H6 93.701
S3 C2 H5 110.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.526      
2 C -0.110      
3 S 0.004      
4 H 0.270      
5 H 0.205      
6 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.379 1.505 0.000 1.552
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.830 -0.916 0.002
y -0.916 -19.462 0.002
z 0.002 0.002 -27.597
Traceless
 xyz
x -4.301 -0.916 0.002
y -0.916 8.251 0.002
z 0.002 0.002 -3.950
Polar
3z2-r2-7.901
x2-y2-8.368
xy-0.916
xz0.002
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.356 1.211 -0.000
y 1.211 5.936 -0.000
z -0.000 -0.000 2.023


<r2> (average value of r2) Å2
<r2> 67.860
(<r2>)1/2 8.238