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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-490.328852
Energy at 298.15K-490.332446
HF Energy-490.328852
Nuclear repulsion energy91.833131
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 B3LYP/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' 3310 3194 0.72 272.34 0.31 0.47
2 A' 3084 2976 29.17 110.99 0.49 0.66
3 A' 2471 2384 7.07 109.19 0.36 0.53
4 A' 1663 1605 147.93 4.62 0.19 0.32
5 A' 1364 1316 22.67 7.99 0.18 0.31
6 A' 1155 1115 83.15 19.88 0.75 0.85
7 A' 901 870 54.89 9.98 0.67 0.81
8 A' 606 585 107.63 11.91 0.33 0.49
9 A' 406 392 5.82 6.52 0.46 0.63
10 A" 1068 1030 1.41 0.50 0.75 0.86
11 A" 733 708 97.47 4.17 0.75 0.86
12 A" 376 363 57.23 7.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8568.6 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 8267.8 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 B3LYP/3-21G
ABC
1.82959 0.19150 0.17336

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.240 1.078 0.000
C2 0.000 0.829 0.000
S3 -0.621 -0.916 0.000
H4 1.471 2.087 0.000
H5 -0.851 1.512 0.000
H6 0.638 -1.465 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26462.72691.03532.13542.6128
C21.26461.85141.93591.09152.3808
S32.72691.85143.65952.43881.3742
H41.03531.93593.65952.39213.6482
H52.13541.09152.43882.39213.3291
H62.61282.38081.37423.64823.3291

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 120.958 N1 C2 H5 129.850
C2 N1 H4 114.277 C2 S3 H6 93.971
S3 C2 H5 109.192
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.507      
2 C -0.200      
3 S 0.099      
4 H 0.276      
5 H 0.222      
6 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.015 1.828 0.000 1.828
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.898 -1.257 0.000
y -1.257 -19.476 0.000
z 0.000 0.000 -27.722
Traceless
 xyz
x -4.299 -1.257 0.000
y -1.257 8.334 0.000
z 0.000 0.000 -4.035
Polar
3z2-r2-8.070
x2-y2-8.422
xy-1.257
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.417 1.233 0.000
y 1.233 6.315 0.000
z 0.000 0.000 1.732


<r2> (average value of r2) Å2
<r2> 70.312
(<r2>)1/2 8.385