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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: HF/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 HF/cc-pVTZ
 hartrees
Energy at 0K-551.380536
Energy at 298.15K-551.385224
Nuclear repulsion energy203.877281
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 HF/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 3396 3091 2.95      
2 A1 3359 3057 6.33      
3 A1 1561 1420 19.70      
4 A1 1518 1382 0.00      
5 A1 1195 1088 4.41      
6 A1 1098 999 1.49      
7 A1 884 805 33.40      
8 A1 654 595 0.85      
9 A2 1051 957 0.00      
10 A2 801 729 0.00      
11 A2 617 562 0.00      
12 B1 1027 935 0.45      
13 B1 808 736 139.30      
14 B1 488 444 0.03      
15 B2 3393 3088 1.89      
16 B2 3344 3044 5.82      
17 B2 1710 1556 0.13      
18 B2 1400 1274 8.88      
19 B2 1199 1091 2.43      
20 B2 944 859 1.38      
21 B2 806 734 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15627.5 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 14222.6 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 HF/cc-pVTZ
ABC
0.26985 0.18331 0.10916

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.186
C2 0.000 1.231 -0.014
C3 0.000 -1.231 -0.014
C4 0.000 0.716 -1.254
C5 0.000 -0.716 -1.254
H6 0.000 2.262 0.266
H7 0.000 -2.262 0.266
H8 0.000 1.312 -2.145
H9 0.000 -1.312 -2.145

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.71871.71872.54282.54282.44212.44213.57953.5795
C21.71872.46241.34352.30891.06863.50482.13273.3181
C31.71872.46242.30891.34353.50481.06863.31812.1327
C42.54281.34352.30891.43202.16893.34421.07152.2149
C52.54282.30891.34351.43203.34422.16892.21491.0715
H62.44211.06863.50482.16893.34424.52492.59174.3117
H72.44213.50481.06863.34422.16894.52494.31172.5917
H83.57952.13273.31811.07152.21492.59174.31172.6241
H93.57953.31812.13272.21491.07154.31172.59172.6241

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.697 S1 C2 H6 120.570
S1 C3 C5 111.697 S1 C3 H7 120.570
C2 S1 C3 91.509 C2 C4 C5 112.549
C2 C4 H8 123.653 C3 C5 C4 112.549
C3 C5 H9 123.653 C4 C2 H6 127.733
C4 C5 H9 123.799 C5 C3 H7 127.733
C5 C4 H8 123.799
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.050 0.000 0.257 0.016
2 C -0.190 -0.224 -0.318 -0.239
3 C -0.190 -0.224 -0.318 -0.239
4 C -0.187 -0.056 0.125 -0.127
5 C -0.187 -0.056 0.125 -0.127
6 H 0.178 0.187 0.049 0.213
7 H 0.178 0.187 0.049 0.213
8 H 0.174 0.093 0.011 0.145
9 H 0.174 0.093 0.011 0.145


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 -0.813 0.813
CHELPG        
AIM 0.000 0.000 -0.271 0.271
ESP 0.000 0.000 -0.787 0.787


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 4.873 0.000 0.000
y 0.000 9.120 0.000
z 0.000 0.000 10.423


<r2> (average value of r2) Å2
<r2> 111.049
(<r2>)1/2 10.538