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 C4H4S (Thiophene)

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-552.987288
Energy at 298.15K-552.991716
Nuclear repulsion energy203.238676
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 B3PW91/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 A1 3256 3131 1.45      
2 A1 3219 3095 3.34      
3 A1 1457 1401 9.33      
4 A1 1400 1346 0.30      
5 A1 1100 1058 3.40      
6 A1 1062 1022 2.94      
7 A1 856 823 22.43      
8 A1 618 594 0.04      
9 A2 930 894 0.00      
10 A2 695 668 0.00      
11 A2 582 559 0.00      
12 B1 888 854 0.05      
13 B1 729 701 125.95      
14 B1 464 447 0.73      
15 B2 3254 3129 0.02      
16 B2 3205 3082 3.49      
17 B2 1561 1501 0.00      
18 B2 1278 1229 9.69      
19 B2 1103 1060 4.35      
20 B2 884 850 1.26      
21 B2 765 736 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 14652.3 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 14089.6 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 B3PW91/cc-pVTZ
ABC
0.26976 0.18162 0.10854

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.187
C2 0.000 1.234 -0.006
C3 0.000 -1.234 -0.006
C4 0.000 0.710 -1.264
C5 0.000 -0.710 -1.264
H6 0.000 2.271 0.288
H7 0.000 -2.271 0.288
H8 0.000 1.314 -2.161
H9 0.000 -1.314 -2.161

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.71621.71622.55192.55192.44212.44213.59643.5964
C21.71622.46731.36292.31511.07813.51682.15613.3369
C31.71622.46732.31511.36293.51681.07813.33692.1561
C42.55191.36292.31511.41942.20173.36071.08132.2137
C52.55192.31511.36291.41943.36072.20172.21371.0813
H62.44211.07813.51682.20173.36074.54162.62924.3418
H72.44213.51681.07813.36072.20174.54164.34182.6292
H83.59642.15613.33691.08132.21372.62924.34182.6287
H93.59643.33692.15612.21371.08134.34182.62922.6287

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.431 S1 C2 H6 120.110
S1 C3 C5 111.431 S1 C3 H7 120.110
C2 S1 C3 91.921 C2 C4 C5 112.609
C2 C4 H8 123.389 C3 C5 C4 112.609
C3 C5 H9 123.389 C4 C2 H6 128.459
C4 C5 H9 124.002 C5 C3 H7 128.459
C5 C4 H8 124.002
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.104 0.000    
2 C -0.165 0.000    
3 C -0.165 0.000    
4 C -0.129 0.000    
5 C -0.129 0.000    
6 H 0.123 0.000    
7 H 0.123 0.000    
8 H 0.119 0.000    
9 H 0.119 0.000    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.520 0.520
CHELPG 0.000 0.000 0.000 0.000
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 111.257
(<r2>)1/2 10.548