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

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G
 hartrees
Energy at 0K-490.173419
Energy at 298.15K-490.177168
HF Energy-490.173419
Nuclear repulsion energy94.065656
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 PBE1PBE/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' 3356 3223 0.06 221.70 0.32 0.48
2 A' 3069 2947 30.95 104.53 0.46 0.63
3 A' 2722 2615 0.54 92.67 0.34 0.50
4 A' 1662 1596 106.32 10.32 0.25 0.40
5 A' 1395 1340 25.95 9.63 0.20 0.33
6 A' 1204 1157 62.90 16.87 0.75 0.85
7 A' 961 923 57.37 5.88 0.69 0.81
8 A' 706 678 81.97 5.65 0.32 0.48
9 A' 435 418 16.22 3.41 0.50 0.66
10 A" 1093 1049 1.31 0.40 0.75 0.86
11 A" 755 725 100.02 5.43 0.75 0.86
12 A" 422 405 46.69 3.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8889.6 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 8537.6 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 PBE1PBE/3-21G
ABC
1.89000 0.20320 0.18347

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.251 1.019 0.000
C2 0.000 0.776 0.000
S3 -0.625 -0.868 0.000
H4 1.471 2.029 0.000
H5 -0.820 1.502 0.000
H6 0.601 -1.425 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27402.66111.03392.12642.5284
C21.27401.75941.93221.09552.2812
S32.66111.75943.57632.37891.3466
H41.03391.93223.57632.35073.5615
H52.12641.09552.37892.35073.2537
H62.52842.28121.34663.56153.2537

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 121.813 N1 C2 H5 127.476
C2 N1 H4 113.290 C2 S3 H6 93.572
S3 C2 H5 110.711
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.553      
2 C -0.154      
3 S 0.014      
4 H 0.287      
5 H 0.233      
6 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.419 1.465 0.000 1.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.669 -0.946 0.000
y -0.946 -19.141 0.000
z 0.000 0.000 -27.585
Traceless
 xyz
x -4.306 -0.946 0.000
y -0.946 8.486 0.000
z 0.000 0.000 -4.180
Polar
3z2-r2-8.360
x2-y2-8.528
xy-0.946
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.415 1.235 0.000
y 1.235 5.971 0.000
z 0.000 0.000 2.060


<r2> (average value of r2) Å2
<r2> 67.244
(<r2>)1/2 8.200