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

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-592.129929
Energy at 298.15K-592.135897
Nuclear repulsion energy265.144910
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 BLYP/6-31G
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 3221 3197 2.00      
2 A 3155 3131 12.29      
3 A 3137 3113 11.76      
4 A 3043 3020 16.87      
5 A 2961 2938 38.63      
6 A 1573 1561 3.20      
7 A 1502 1491 2.30      
8 A 1476 1465 16.03      
9 A 1426 1415 0.41      
10 A 1345 1335 1.49      
11 A 1253 1244 14.28      
12 A 1147 1138 13.93      
13 A 1097 1089 2.47      
14 A 1053 1045 3.81      
15 A 980 973 2.52      
16 A 812 806 8.15      
17 A 670 665 4.31      
18 A 586 582 4.65      
19 A 526 522 1.03      
20 A 296 294 1.11      
21 A 3012 2989 22.78      
22 A 1485 1474 9.16      
23 A 1063 1055 2.07      
24 A 892 885 0.39      
25 A 819 813 9.02      
26 A 685 680 69.78      
27 A 556 552 1.00      
28 A 445 441 4.37      
29 A 221 219 3.13      
30 A 115 114 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 20275.4 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 20121.3 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 BLYP/6-31G
ABC
0.16308 0.09925 0.06243

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.477 -1.477 0.000
C2 -1.495 -1.001 0.000
H3 -2.146 1.140 0.000
C4 -1.313 0.434 0.000
C5 0.000 0.855 0.000
H6 -0.160 -2.788 0.000
C7 -0.321 -1.714 0.000
S8 1.129 -0.606 0.000
H9 -0.262 2.984 0.000
H10 1.187 2.448 0.890
H11 1.187 2.448 -0.890
C12 0.563 2.251 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.09112.63822.23813.40182.66212.16853.70994.98065.44275.44274.8099
C21.09112.23771.44682.38292.23091.37372.65414.17114.45874.45873.8480
H32.63822.23771.09182.16464.40173.38773.71152.63593.68933.68932.9270
C42.23811.44681.09181.37843.42252.36642.65452.75753.33103.33102.6107
C53.40182.38292.16461.37843.64622.58901.84642.14512.17702.17701.5052
H62.66212.23094.40173.42253.64621.08582.53445.77275.47905.47905.0904
C72.16851.37373.38772.36642.58901.08581.82564.69844.51554.51554.0624
S83.70992.65413.71152.65451.84642.53441.82563.84993.18123.18122.9126
H94.98064.17112.63592.75752.14515.77274.69843.84991.78291.78291.1029
H105.44274.45873.68933.33102.17705.47904.51553.18121.78291.77931.1049
H115.44274.45873.68933.33102.17705.47904.51553.18121.78291.77931.1049
C124.80993.84802.92702.61071.50525.09044.06242.91261.10291.10491.1049

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 123.129 H1 C2 C7 122.824
C2 C4 H3 123.033 C2 C4 C5 114.997
C2 C7 H6 129.842 C2 C7 S8 111.332
H3 C4 C5 121.970 C4 C2 C7 114.047
C4 C5 S8 109.957 C4 C5 C12 129.696
C5 S8 C7 89.668 C5 C12 H9 109.703
C5 C12 H10 112.124 C5 C12 H11 112.124
H6 C7 S8 118.826 S8 C5 C12 120.348
H9 C12 H10 107.717 H9 C12 H11 107.717
H10 C12 H11 107.253
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.110      
2 C -0.022      
3 H 0.105      
4 C -0.027      
5 C -0.238      
6 H 0.137      
7 C -0.416      
8 S 0.340      
9 H 0.142      
10 H 0.148      
11 H 0.148      
12 C -0.428      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.784 0.691 0.000 1.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.678 1.207 0.000
y 1.207 -37.040 0.000
z 0.000 0.000 -46.192
Traceless
 xyz
x -0.062 1.207 0.000
y 1.207 6.895 0.000
z 0.000 0.000 -6.833
Polar
3z2-r2-13.665
x2-y2-4.638
xy1.207
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 185.492
(<r2>)1/2 13.620