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All results from a given calculation for C5H6S (Thiophene, 2-methyl-)

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-592.430046
Energy at 298.15K-592.436225
Nuclear repulsion energy272.821621
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/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 3248 3139 0.92      
2 A 3205 3098 6.66      
3 A 3188 3081 7.63      
4 A 3101 2997 12.80      
5 A 3025 2924 32.13      
6 A 1588 1535 2.42      
7 A 1498 1448 2.18      
8 A 1484 1434 14.27      
9 A 1421 1373 0.05      
10 A 1385 1339 0.74      
11 A 1268 1225 10.06      
12 A 1173 1134 9.29      
13 A 1104 1067 1.55      
14 A 1067 1031 3.69      
15 A 994 961 1.91      
16 A 854 825 12.01      
17 A 747 722 0.57      
18 A 664 641 1.76      
19 A 553 534 0.57      
20 A 304 294 0.80      
21 A 3070 2968 14.64      
22 A 1481 1432 7.77      
23 A 1064 1029 0.63      
24 A 916 886 0.21      
25 A 837 809 13.31      
26 A 705 681 66.17      
27 A 580 560 0.19      
28 A 480 464 4.82      
29 A 233 225 2.81      
30 A 93 90 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 20663.2 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 19973.0 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/cc-pVTZ
ABC
0.17638 0.10366 0.06609

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.383 -1.544 0.000
C2 -1.432 -1.031 0.000
H3 -2.134 1.068 0.000
C4 -1.296 0.386 0.000
C5 0.000 0.814 0.000
H6 -0.040 -2.734 0.000
C7 -0.234 -1.675 0.000
S8 1.080 -0.551 0.000
H9 -0.317 2.918 0.000
H10 1.129 2.426 0.880
H11 1.129 2.426 -0.880
C12 0.517 2.217 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08012.62382.21513.35232.62822.15313.60284.91665.37285.37284.7494
C21.08012.21381.42392.33592.19971.36042.55804.10354.39174.39173.7886
H32.62382.21381.08102.14934.34103.33733.59952.59273.64233.64232.8897
C42.21511.42391.08101.36453.36352.31872.55422.71423.28853.28852.5768
C53.35232.33592.14931.36453.54842.50021.74112.12762.15572.15571.4955
H62.62822.19974.34103.36353.54841.07662.45355.65885.36355.36354.9826
C72.15311.36043.33732.31872.50021.07661.72934.59384.41034.41033.9642
S83.60282.55803.59952.55421.74112.45351.72933.74013.10493.10492.8252
H94.91664.10352.59272.71422.12765.65884.59383.74011.76301.76301.0896
H105.37284.39173.64233.28852.15575.36354.41033.10491.76301.75981.0918
H115.37284.39173.64233.28852.15575.36354.41033.10491.76301.75981.0918
C124.74943.78862.88972.57681.49554.98263.96422.82521.08961.09181.0918

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 123.828 H1 C2 C7 123.425
C2 C4 H3 123.624 C2 C4 C5 113.782
C2 C7 H6 128.638 C2 C7 S8 111.214
H3 C4 C5 122.593 C4 C2 C7 112.747
C4 C5 S8 110.075 C4 C5 C12 128.514
C5 S8 C7 92.181 C5 C12 H9 109.780
C5 C12 H10 111.911 C5 C12 H11 111.911
H6 C7 S8 120.148 S8 C5 C12 121.411
H9 C12 H10 107.835 H9 C12 H11 107.835
H10 C12 H11 107.391
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.118     0.155
2 C -0.138     -0.169
3 H 0.113     0.153
4 C -0.159     -0.217
5 C 0.019     0.136
6 H 0.126     0.209
7 C -0.178     -0.255
8 S 0.079     -0.021
9 H 0.102     0.087
10 H 0.108     0.106
11 H 0.108     0.106
12 C -0.298     -0.291


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.401 0.545 0.000 0.677
CHELPG        
AIM        
ESP -0.408 0.544 0.000 0.680


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.718 0.652 0.000
y 0.652 -37.915 0.000
z 0.000 0.000 -46.284
Traceless
 xyz
x 0.381 0.652 0.000
y 0.652 6.086 0.000
z 0.000 0.000 -6.467
Polar
3z2-r2-12.935
x2-y2-3.803
xy0.652
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.266 0.492 0.000
y 0.492 12.949 0.000
z 0.000 0.000 6.327


<r2> (average value of r2) Å2
<r2> 177.371
(<r2>)1/2 13.318