return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-492.367461
Energy at 298.15K-492.371182
HF Energy-491.617946
Nuclear repulsion energy94.660183
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 MP2=FULL/6-311+G(3df,2p)
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' 3524 3322 10.08 165.38 0.29 0.44
2 A' 3116 2938 17.83 109.39 0.34 0.50
3 A' 2748 2591 6.29 94.64 0.17 0.28
4 A' 1632 1538 141.87 22.93 0.20 0.34
5 A' 1381 1302 16.37 4.98 0.07 0.14
6 A' 1195 1127 24.52 12.43 0.45 0.62
7 A' 939 885 58.16 4.09 0.17 0.30
8 A' 740 698 67.41 3.54 0.05 0.09
9 A' 430 405 20.55 2.77 0.30 0.46
10 A" 1062 1001 1.67 0.39 0.75 0.86
11 A" 739 697 78.19 1.13 0.75 0.86
12 A" 394 372 27.88 0.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8950.3 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 8437.4 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 MP2=FULL/6-311+G(3df,2p)
ABC
1.94038 0.20478 0.18523

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.244 1.028 0.000
C2 0.000 0.761 0.000
S3 -0.618 -0.867 0.000
H4 1.386 2.036 0.000
H5 -0.800 1.501 0.000
H6 0.593 -1.431 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27232.65651.01782.09832.5439
C21.27231.74131.88311.09012.2713
S32.65651.74133.52722.37511.3363
H41.01781.88313.52722.25073.5566
H52.09831.09012.37512.25073.2469
H62.54392.27131.33633.55663.2469

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 122.893 N1 C2 H5 125.124
C2 N1 H4 110.133 C2 S3 H6 94.203
S3 C2 H5 111.982
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability