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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: B3PW91/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-552.936132
Energy at 298.15K-552.940514
Nuclear repulsion energy201.880751
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/aug-cc-pVDZ
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 3266 3151 1.40      
2 A1 3231 3117 2.88      
3 A1 1467 1415 10.08      
4 A1 1391 1342 0.37      
5 A1 1088 1050 2.95      
6 A1 1059 1021 2.89      
7 A1 850 820 23.22      
8 A1 613 591 0.09      
9 A2 903 871 0.00      
10 A2 683 659 0.00      
11 A2 574 553 0.00      
12 B1 867 837 0.00      
13 B1 720 694 131.47      
14 B1 456 440 0.60      
15 B2 3264 3148 0.00      
16 B2 3218 3104 3.24      
17 B2 1559 1504 0.24      
18 B2 1261 1216 10.19      
19 B2 1092 1053 3.97      
20 B2 875 844 1.21      
21 B2 758 731 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 14596.9 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 14080.2 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/aug-cc-pVDZ
ABC
0.26658 0.17899 0.10709

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.196
C2 0.000 1.241 -0.008
C3 0.000 -1.241 -0.008
C4 0.000 0.713 -1.273
C5 0.000 -0.713 -1.273
H6 0.000 2.286 0.291
H7 0.000 -2.286 0.291
H8 0.000 1.323 -2.175
H9 0.000 -1.323 -2.175

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.72931.72932.57012.57012.45872.45873.62193.6219
C21.72932.48201.37052.32791.08683.53952.16883.3575
C31.72932.48202.32791.37053.53951.08683.35752.1688
C42.57011.37052.32791.42672.21763.38231.08922.2277
C52.57012.32791.37051.42673.38232.21762.22771.0892
H62.45871.08683.53952.21763.38234.57172.64724.3712
H72.45873.53951.08683.38232.21764.57174.37122.6472
H83.62192.16883.35751.08922.22772.64724.37122.6467
H93.62193.35752.16882.22771.08924.37122.64722.6467

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.495 S1 C2 H6 119.900
S1 C3 C5 111.495 S1 C3 H7 119.900
C2 S1 C3 91.719 C2 C4 C5 112.646
C2 C4 H8 123.295 C3 C5 C4 112.646
C3 C5 H9 123.295 C4 C2 H6 128.605
C4 C5 H9 124.060 C5 C3 H7 128.605
C5 C4 H8 124.060
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.432      
2 C -0.046      
3 C -0.046      
4 C 0.703      
5 C 0.703      
6 H -0.458      
7 H -0.458      
8 H -0.415      
9 H -0.415      


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 -0.563 0.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.413 0.000 0.000
y 0.000 -31.383 0.000
z 0.000 0.000 -34.741
Traceless
 xyz
x -7.351 0.000 0.000
y 0.000 6.194 0.000
z 0.000 0.000 1.157
Polar
3z2-r22.315
x2-y2-9.030
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.512 0.000 0.000
y 0.000 10.500 0.000
z 0.000 0.000 11.406


<r2> (average value of r2) Å2
<r2> 112.693
(<r2>)1/2 10.616