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All results from a given calculation for C4H6OS (2,3-dihydrothiophene-2-ol)

using model chemistry: B1B95/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/CEP-31G
 hartrees
Energy at 0K-52.131055
Energy at 298.15K-52.138311
Nuclear repulsion energy120.773508
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 B1B95/CEP-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 A 3755 3596 23.16      
2 A 3279 3139 12.68      
3 A 3229 3091 2.60      
4 A 3156 3022 17.00      
5 A 3120 2987 61.07      
6 A 3076 2945 21.98      
7 A 1663 1592 12.69      
8 A 1469 1406 10.20      
9 A 1378 1320 4.59      
10 A 1351 1294 5.09      
11 A 1314 1258 14.58      
12 A 1270 1216 55.95      
13 A 1224 1172 38.33      
14 A 1168 1118 27.50      
15 A 1117 1070 0.86      
16 A 1053 1009 95.17      
17 A 1035 991 4.52      
18 A 944 904 5.34      
19 A 941 901 27.45      
20 A 889 851 48.92      
21 A 801 767 32.89      
22 A 746 715 31.67      
23 A 704 674 74.39      
24 A 626 599 14.22      
25 A 534 511 1.50      
26 A 412 395 10.83      
27 A 363 348 8.34      
28 A 348 333 78.67      
29 A 281 269 155.92      
30 A 130 125 2.01      

Unscaled Zero Point Vibrational Energy (zpe) 20687.6 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 19808.3 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 B1B95/CEP-31G
ABC
0.12671 0.10886 0.07084

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.530 -1.270 0.217
C2 0.958 -0.072 0.426
C3 0.353 1.342 0.538
C4 -0.962 1.351 -0.233
C5 -1.522 0.126 -0.439
O6 1.819 -0.076 -0.728
H7 1.492 -0.397 1.333
H8 1.084 2.056 0.130
H9 -1.427 2.281 -0.563
H10 -2.462 -0.102 -0.936
H11 0.175 1.598 1.597
H12 2.102 -0.983 -0.965

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.92132.77622.69491.83412.79942.46943.69843.74512.53573.26002.8991
C21.92131.54212.47892.63311.43961.10172.15263.49343.68152.18512.0180
C32.77621.54211.52472.43902.39982.22521.10052.29473.49131.10423.2745
C42.69492.47891.52471.36273.16403.39572.19431.09082.20442.16883.9206
C51.83412.63312.43901.36273.35863.53503.29222.16051.08853.03173.8256
O62.79941.43962.39983.16403.35862.11102.41214.01434.28623.30280.9800
H72.46941.10172.22523.39573.53502.11102.76214.39194.56912.40482.4482
H83.69842.15261.10052.19433.29222.41212.76212.61514.28651.78633.3868
H93.74513.49342.29471.09082.16054.01434.39192.61512.62492.77544.8239
H102.53573.68153.49132.20441.08854.28624.56914.28652.62494.03324.6485
H113.26002.18511.10422.16883.03173.30282.40481.78632.77544.03324.1156
H122.89912.01803.27453.92063.82560.98002.44823.38684.82394.64854.1156

picture of 2,3-dihydrothiophene-2-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 106.045 S1 C2 O6 112.006
S1 C2 H7 106.363 S1 C5 C4 114.106
S1 C5 H10 118.110 C2 S1 C5 89.010
C2 C3 C4 107.863 C2 C3 H8 107.928
C2 C3 H11 110.227 C2 O6 H12 111.613
C3 C2 O6 107.141 C3 C2 H7 113.585
C3 C4 C5 115.165 C3 C4 H9 121.765
C4 C3 H8 112.408 C4 C3 H11 110.152
C4 C5 H10 127.784 C5 C4 H9 123.043
O6 C2 H7 111.644 H8 C3 H11 108.237
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.149      
2 C -0.433      
3 C -0.140      
4 C -0.165      
5 C -0.492      
6 O -0.394      
7 H 0.220      
8 H 0.174      
9 H 0.282      
10 H 0.290      
11 H 0.157      
12 H 0.354      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.202 0.485 0.765 0.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.900 -4.636 3.683
y -4.636 -40.403 2.202
z 3.683 2.202 -43.316
Traceless
 xyz
x 1.960 -4.636 3.683
y -4.636 1.205 2.202
z 3.683 2.202 -3.165
Polar
3z2-r2-6.329
x2-y20.503
xy-4.636
xz3.683
yz2.202


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.184 0.421 0.844
y 0.421 10.557 -0.163
z 0.844 -0.163 5.790


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