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

using model chemistry: B3LYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-554.291903
Energy at 298.15K-554.298683
Nuclear repulsion energy215.853954
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 B3LYP/6-311+G(3df,2p)
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 3178 3073 15.23      
2 A1 3024 2924 0.48      
3 A1 1700 1644 9.18      
4 A1 1489 1440 6.67      
5 A1 1288 1246 0.06      
6 A1 1146 1108 0.64      
7 A1 955 924 0.17      
8 A1 709 685 2.31      
9 A1 513 496 0.00      
10 A2 3052 2952 0.00      
11 A2 1152 1114 0.00      
12 A2 980 947 0.00      
13 A2 951 919 0.00      
14 A2 385 372 0.00      
15 B1 3054 2953 12.65      
16 B1 1135 1097 11.11      
17 B1 903 873 0.98      
18 B1 684 662 46.93      
19 B1 100 97 3.92      
20 B2 3155 3051 3.73      
21 B2 3025 2925 66.63      
22 B2 1485 1436 0.27      
23 B2 1367 1322 3.08      
24 B2 1251 1209 4.09      
25 B2 969 937 9.90      
26 B2 824 797 0.64      
27 B2 634 613 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 19552.7 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 18907.5 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 B3LYP/6-311+G(3df,2p)
ABC
0.22097 0.15937 0.09589

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.249
C2 0.000 1.349 -0.002
C3 0.000 -1.349 -0.002
C4 0.000 0.663 -1.334
C5 0.000 -0.663 -1.334
H6 -0.882 1.978 0.133
H7 0.882 1.978 0.133
H8 0.882 -1.978 0.133
H9 -0.882 -1.978 0.133
H10 0.000 1.255 -2.241
H11 0.000 -1.255 -2.241

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83971.83972.66712.66712.43672.43672.43672.43673.70913.7091
C21.83972.69771.49872.41281.09171.09173.44463.44462.24143.4342
C31.83972.69772.41281.49873.44463.44461.09171.09173.43422.2414
C42.66711.49872.41281.32542.15872.15873.14713.14711.08312.1211
C52.66712.41281.49871.32543.14713.14712.15872.15872.12111.0831
H62.43671.09173.44462.15873.14711.76354.33183.95652.63374.1067
H72.43671.09173.44462.15873.14711.76353.95654.33182.63374.1067
H82.43673.44461.09173.14712.15874.33183.95651.76354.10672.6337
H92.43673.44461.09173.14712.15873.95654.33181.76354.10672.6337
H103.70912.24143.43421.08312.12112.63372.63374.10674.10672.5095
H113.70913.43422.24142.12111.08314.10674.10672.63372.63372.5095

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 105.600 S1 C2 H6 109.813
S1 C2 H7 109.813 S1 C3 C5 105.600
S1 C3 H8 109.813 S1 C3 H9 109.813
C2 S1 C3 94.309 C2 C4 C5 117.246
C2 C4 H10 119.619 C3 C5 C4 117.246
C3 C5 H11 119.619 C4 C2 H6 111.931
C4 C2 H7 111.931 C4 C5 H11 123.136
C5 C3 H8 111.931 C5 C3 H9 111.931
C5 C4 H10 123.136 H6 C2 H7 107.745
H8 C3 H9 107.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.556      
2 C -0.062      
3 C -0.062      
4 C -0.110      
5 C -0.110      
6 H 0.156      
7 H 0.156      
8 H 0.156      
9 H 0.156      
10 H 0.139      
11 H 0.139      


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 -1.774 1.774
CHELPG        
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 7.553 0.000 0.000
y 0.000 11.255 0.000
z 0.000 0.000 10.380


<r2> (average value of r2) Å2
<r2> 129.017
(<r2>)1/2 11.359