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All results from a given calculation for C4H6S (Thiophene, 2,5-dihydro-)

using model chemistry: LSDA/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-31G*
 hartrees
Energy at 0K-552.266569
Energy at 298.15K-552.273231
Nuclear repulsion energy216.448970
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 LSDA/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 A1 3142 3083 10.38      
2 A1 2974 2918 0.52      
3 A1 1710 1678 5.76      
4 A1 1446 1419 9.20      
5 A1 1262 1238 0.00      
6 A1 1101 1081 0.28      
7 A1 979 960 0.11      
8 A1 726 713 2.48      
9 A1 514 504 0.04      
10 A2 3008 2952 0.00      
11 A2 1110 1089 0.00      
12 A2 946 928 0.00      
13 A2 915 898 0.00      
14 A2 369 362 0.00      
15 B1 3010 2954 12.49      
16 B1 1093 1073 9.63      
17 B1 876 859 0.25      
18 B1 658 645 48.69      
19 B1 93 91 5.37      
20 B2 3120 3062 1.14      
21 B2 2974 2918 52.76      
22 B2 1442 1415 0.56      
23 B2 1331 1306 1.09      
24 B2 1218 1195 8.01      
25 B2 979 961 9.51      
26 B2 808 793 0.11      
27 B2 648 636 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19225.2 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 18865.7 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 LSDA/6-31G*
ABC
0.22190 0.16109 0.09675

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.242
C2 0.000 1.339 -0.001
C3 0.000 -1.339 -0.001
C4 0.000 0.666 -1.325
C5 0.000 -0.666 -1.325
H6 -0.890 1.984 0.133
H7 0.890 1.984 0.133
H8 0.890 -1.984 0.133
H9 -0.890 -1.984 0.133
H10 0.000 1.268 -2.242
H11 0.000 -1.268 -2.242

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.82671.82672.65182.65182.44062.44062.44062.44063.70723.7072
C21.82672.67761.48512.40281.10701.10703.44223.44222.24203.4376
C31.82672.67762.40281.48513.44223.44221.10701.10703.43762.2420
C42.65181.48512.40281.33262.15702.15703.15273.15271.09672.1406
C52.65182.40281.48511.33263.15273.15272.15702.15702.14061.0967
H62.44061.10703.44222.15703.15271.77964.34823.96742.63494.1236
H72.44061.10703.44222.15703.15271.77963.96744.34822.63494.1236
H82.44063.44221.10703.15272.15704.34823.96741.77964.12362.6349
H92.44063.44221.10703.15272.15703.96744.34821.77964.12362.6349
H103.70722.24203.43761.09672.14062.63492.63494.12364.12362.5361
H113.70723.43762.24202.14061.09674.12364.12362.63492.63492.5361

picture of Thiophene, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 105.940 S1 C2 H6 110.169
S1 C2 H7 110.169 S1 C3 C5 105.940
S1 C3 H8 110.169 S1 C3 H9 110.169
C2 S1 C3 94.265 C2 C4 C5 116.928
C2 C4 H10 119.794 C3 C5 C4 116.928
C3 C5 H11 119.794 C4 C2 H6 111.810
C4 C2 H7 111.810 C4 C5 H11 123.278
C5 C3 H8 111.810 C5 C3 H9 111.810
C5 C4 H10 123.278 H6 C2 H7 106.982
H8 C3 H9 106.982
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.095      
2 C -0.535      
3 C -0.535      
4 C -0.104      
5 C -0.104      
6 H 0.212      
7 H 0.212      
8 H 0.212      
9 H 0.212      
10 H 0.166      
11 H 0.166      


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 -1.995 1.995
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.295 0.000 0.000
y 0.000 -32.003 0.000
z 0.000 0.000 -38.699
Traceless
 xyz
x -3.944 0.000 0.000
y 0.000 6.994 0.000
z 0.000 0.000 -3.050
Polar
3z2-r2-6.100
x2-y2-7.292
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.284 0.000 0.000
y 0.000 10.122 0.000
z 0.000 0.000 8.716


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000