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 C5H6S (Thiophene, 2-methyl-)

using model chemistry: LSDA/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/cc-pVTZ
 hartrees
Energy at 0K-590.277924
Energy at 298.15K-590.283977
Nuclear repulsion energy274.771116
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 LSDA/cc-pVTZ
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 3182 3148 1.65      
2 A 3143 3108 1.07      
3 A 3124 3090 3.29      
4 A 3057 3023 4.43      
5 A 2965 2932 20.68      
6 A 1569 1551 5.02      
7 A 1486 1470 6.64      
8 A 1417 1401 8.58      
9 A 1357 1343 1.70      
10 A 1340 1325 2.04      
11 A 1210 1196 10.39      
12 A 1186 1173 8.66      
13 A 1055 1043 5.40      
14 A 1038 1026 3.80      
15 A 953 942 2.39      
16 A 857 848 11.61      
17 A 753 745 0.04      
18 A 681 674 0.67      
19 A 550 544 0.69      
20 A 292 289 0.75      
21 A 3025 2992 4.72      
22 A 1398 1382 11.36      
23 A 1008 997 1.92      
24 A 875 866 0.17      
25 A 795 786 13.54      
26 A 671 664 69.90      
27 A 574 568 0.38      
28 A 477 472 6.23      
29 A 229 227 3.30      
30 A 78 77 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 20170.4 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 19950.5 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 LSDA/cc-pVTZ
ABC
0.17897 0.10553 0.06722

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.370 -1.562 0.000
C2 -1.418 -1.031 0.000
H3 -2.139 1.063 0.000
C4 -1.294 0.372 0.000
C5 0.000 0.808 0.000
H6 -0.001 -2.729 0.000
C7 -0.212 -1.663 0.000
S8 1.071 -0.536 0.000
H9 -0.342 2.895 0.000
H10 1.119 2.414 0.885
H11 1.119 2.414 -0.885
C12 0.503 2.194 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08972.63452.21313.35122.64022.16043.59044.89625.36305.36304.7286
C21.08972.21451.40902.32232.21071.36132.53774.07104.36924.36923.7542
H32.63452.21451.09102.15374.35213.33763.58562.56593.63613.63612.8739
C42.21311.40901.09101.36523.35942.30462.53322.69623.28243.28242.5590
C53.35122.32232.15371.36523.53642.47951.71832.11502.14852.14851.4747
H62.64022.21074.35213.35943.53641.08662.44085.63395.33735.33734.9484
C72.16041.36133.33762.30462.47951.08661.70734.55944.37884.37883.9223
S83.59042.53773.58562.53321.71832.44081.70733.71063.08053.08052.7884
H94.89624.07102.56592.69622.11505.63394.55943.71061.77491.77491.0984
H105.36304.36923.63613.28242.14855.33734.37883.08051.77491.77081.1006
H115.36304.36923.63613.28242.14855.33734.37883.08051.77491.77081.1006
C124.72863.75422.87392.55901.47474.94843.92232.78841.09841.10061.1006

picture of Thiophene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 124.176 H1 C2 C7 123.249
C2 C4 H3 124.211 C2 C4 C5 113.659
C2 C7 H6 128.788 C2 C7 S8 111.082
H3 C4 C5 122.131 C4 C2 C7 112.575
C4 C5 S8 109.947 C4 C5 C12 128.562
C5 S8 C7 92.738 C5 C12 H9 109.703
C5 C12 H10 112.264 C5 C12 H11 112.264
H6 C7 S8 120.130 S8 C5 C12 121.492
H9 C12 H10 107.636 H9 C12 H11 107.636
H10 C12 H11 107.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.123      
2 C -0.144      
3 H 0.116      
4 C -0.153      
5 C -0.026      
6 H 0.132      
7 C -0.208      
8 S 0.126      
9 H 0.117      
10 H 0.129      
11 H 0.129      
12 C -0.340      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.296 0.583 0.000 0.654
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.435 0.619 0.000
y 0.619 -37.481 0.000
z 0.000 0.000 -46.213
Traceless
 xyz
x 0.412 0.619 0.000
y 0.619 6.343 0.000
z 0.000 0.000 -6.755
Polar
3z2-r2-13.510
x2-y2-3.954
xy0.619
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.402 0.547 0.000
y 0.547 13.343 0.000
z 0.000 0.000 6.415


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000