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 C2H5SC2H5 (Diethyl sulfide)

using model chemistry: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-38.327060
Energy at 298.15K-38.337621
HF Energy-37.706962
Nuclear repulsion energy99.896325
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 MP2/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 A1 3185 3024 46.12      
2 A1 3093 2937 46.97      
3 A1 3089 2933 27.77      
4 A1 1528 1451 5.73      
5 A1 1518 1441 0.36      
6 A1 1446 1373 1.73      
7 A1 1354 1285 15.55      
8 A1 1124 1067 0.18      
9 A1 1023 972 3.09      
10 A1 728 691 0.01      
11 A1 335 318 0.75      
12 A1 140 132 0.37      
13 A2 3199 3037 0.00      
14 A2 3164 3004 0.00      
15 A2 1517 1440 0.00      
16 A2 1285 1220 0.00      
17 A2 1061 1007 0.00      
18 A2 796 756 0.00      
19 A2 255 242 0.00      
20 A2 72 68 0.00      
21 B1 3199 3037 79.83      
22 B1 3159 2999 31.41      
23 B1 1517 1440 16.77      
24 B1 1292 1226 0.43      
25 B1 1083 1028 0.28      
26 B1 814 773 11.24      
27 B1 254 241 0.24      
28 B1 60 57 1.05      
29 B2 3186 3024 14.32      
30 B2 3095 2938 16.98      
31 B2 3089 2933 50.17      
32 B2 1527 1450 0.22      
33 B2 1511 1435 7.10      
34 B2 1442 1369 6.17      
35 B2 1320 1253 46.42      
36 B2 1078 1024 3.70      
37 B2 1016 965 5.24      
38 B2 731 694 1.12      
39 B2 340 323 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 29811.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 28303.4 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 MP2/CEP-31G*
ABC
0.46703 0.05677 0.05266

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.565
C2 0.000 1.391 -0.628
C3 0.000 -1.391 -0.628
C4 0.000 2.733 0.137
C5 0.000 -2.733 0.137
H6 0.897 1.317 -1.270
H7 -0.897 1.317 -1.270
H8 0.897 -1.317 -1.270
H9 -0.897 -1.317 -1.270
H10 0.000 3.574 -0.580
H11 0.000 -3.574 -0.580
H12 -0.895 2.820 0.776
H13 0.895 2.820 0.776
H14 0.895 -2.820 0.776
H15 -0.895 -2.820 0.776

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
S11.83271.83272.76612.76612.42972.42972.42972.42973.75263.75262.96672.96672.96672.9667
C21.83272.78251.54454.19451.10531.10532.92392.92392.18304.96522.19482.19484.52914.5291
C31.83272.78254.19451.54452.92392.92391.10531.10534.96522.18304.52914.52912.19482.1948
C42.76611.54454.19455.46562.18842.18844.37974.37971.10526.34721.10361.10365.66125.6612
C52.76614.19451.54455.46564.37974.37972.18842.18846.34721.10525.66125.66121.10361.1036
H62.42971.10532.92392.18844.37971.79422.63343.18652.52485.01963.10812.53924.61544.9512
H72.42971.10532.92392.18844.37971.79423.18652.63342.52485.01962.53923.10814.95124.6154
H82.42972.92391.10534.37972.18842.63343.18651.79425.01962.52484.95124.61542.53923.1081
H92.42972.92391.10534.37972.18843.18652.63341.79425.01962.52484.61544.95123.10812.5392
H103.75262.18304.96521.10526.34722.52482.52485.01965.01967.14751.79141.79146.59756.5975
H113.75264.96522.18306.34721.10525.01965.01962.52482.52487.14756.59756.59751.79141.7914
H122.96672.19484.52911.10365.66123.10812.53924.95124.61541.79146.59751.79065.91835.6409
H132.96672.19484.52911.10365.66122.53923.10814.61544.95121.79146.59751.79065.64095.9183
H142.96674.52912.19485.66121.10364.61544.95122.53923.10816.59751.79145.91835.64091.7906
H152.96674.52912.19485.66121.10364.95124.61543.10812.53926.59751.79145.64095.91831.7906

picture of Diethyl sulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 109.685 S1 C2 H6 109.058
S1 C2 H7 109.058 S1 C3 C5 109.685
S1 C3 H8 109.058 S1 C3 H9 109.058
C2 S1 C3 98.775 C2 C4 H10 109.841
C2 C4 H12 110.857 C2 C4 H13 110.857
C3 C5 H11 109.841 C3 C5 H14 110.857
C3 C5 H15 110.857 C4 C2 H6 110.252
C4 C2 H7 110.252 C5 C3 H8 110.252
C5 C3 H9 110.252 H6 C2 H7 108.505
H8 C3 H9 108.505 H10 C4 H12 108.389
H10 C4 H13 108.389 H11 C5 H14 108.389
H11 C5 H15 108.389 H12 C4 H13 108.432
H14 C5 H15 108.432
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability