return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H6OS (2,5-dihydrothiophene-3-ol)

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-629.213977
Energy at 298.15K-629.221262
HF Energy-628.864618
Nuclear repulsion energy288.219227
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 B2PLYP/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 A 3818 3663 49.36      
2 A 3188 3058 13.70      
3 A 3107 2981 6.03      
4 A 3089 2964 10.99      
5 A 3067 2943 32.13      
6 A 3056 2932 40.51      
7 A 1730 1660 95.03      
8 A 1511 1449 1.94      
9 A 1502 1441 3.77      
10 A 1428 1370 3.42      
11 A 1287 1234 9.90      
12 A 1278 1226 50.92      
13 A 1229 1179 1.06      
14 A 1169 1121 186.40      
15 A 1158 1111 0.00      
16 A 1138 1092 5.18      
17 A 1027 985 14.04      
18 A 976 937 0.27      
19 A 906 869 0.08      
20 A 896 860 0.29      
21 A 783 751 44.46      
22 A 781 749 11.46      
23 A 724 694 1.45      
24 A 607 582 0.46      
25 A 491 471 0.11      
26 A 478 459 0.34      
27 A 397 381 93.95      
28 A 382 367 11.75      
29 A 235 226 4.63      
30 A 82 79 2.80      

Unscaled Zero Point Vibrational Energy (zpe) 20758.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19916.1 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 B2PLYP/cc-pVTZ
ABC
0.20102 0.07932 0.05811

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 1.548 -0.516 -0.000
C2 -0.159 -1.180 0.000
C3 -1.049 0.021 -0.000
C4 -0.478 1.225 -0.000
C5 1.015 1.252 0.000
O6 -2.376 -0.280 -0.000
H7 -0.333 -1.793 -0.883
H8 -1.041 2.148 -0.000
H9 1.425 1.744 0.882
H10 -0.333 -1.793 0.884
H11 1.425 1.744 -0.882
H12 -2.882 0.540 -0.001

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.83092.65172.67121.84663.93162.43863.71562.42942.43862.42934.5541
C21.83091.49462.42562.69982.39351.08933.44303.43951.08933.43973.2209
C32.65171.49461.33242.40301.36152.14092.12733.14062.14093.14071.9053
C42.67122.42561.33241.49332.42273.14791.08192.16023.14772.16022.4998
C51.84662.69982.40301.49333.72163.44502.24371.08993.44481.08993.9617
O63.93162.39351.36152.42273.72162.69202.77094.39562.69214.39570.9632
H72.43861.08932.14093.14793.44502.69204.10094.32591.76633.94963.5666
H83.71563.44302.12731.08192.24372.77094.10092.65024.10072.65022.4440
H92.42943.43953.14062.16021.08994.39564.32592.65023.94911.76434.5579
H102.43861.08932.14093.14773.44482.69211.76634.10073.94914.32593.5670
H112.42933.43973.14072.16021.08994.39573.94962.65021.76434.32594.5577
H124.55413.22091.90532.49983.96170.96323.56662.44404.55793.56704.5577

picture of 2,5-dihydrothiophene-3-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 105.314 S1 C2 H7 110.669
S1 C2 H10 110.672 S1 C5 C4 105.736
S1 C5 H9 108.906 S1 C5 H11 108.901
C2 S1 C5 94.472 C2 C3 C4 118.076
C2 C3 O6 113.786 C3 C2 H7 110.928
C3 C2 H10 110.926 C3 C4 C5 116.401
C3 C4 H8 123.223 C3 O6 H12 108.883
C4 C3 O6 128.138 C4 C5 H9 112.556
C4 C5 H11 112.560 C5 C4 H8 120.375
H7 C2 H10 108.338 H9 C5 H11 108.070
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.133      
2 C -0.124      
3 C 0.181      
4 C -0.290      
5 C -0.123      
6 O -0.308      
7 H 0.115      
8 H 0.127      
9 H 0.107      
10 H 0.115      
11 H 0.107      
12 H 0.223      


Electric dipole moments


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 11.043 0.507 0.000
y 0.507 11.007 -0.000
z 0.000 -0.000 6.414


<r2> (average value of r2) Å2
<r2> 190.266
(<r2>)1/2 13.794