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All results from a given calculation for C2H6O3S (Sulfurous acid, dimethyl ester)

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-702.242760
Energy at 298.15K-702.250481
HF Energy-701.248061
Nuclear repulsion energy341.965251
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/cc-pVDZ
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 3222 3069 6.60      
2 A 3222 3069 10.07      
3 A 3165 3015 45.05      
4 A 3165 3014 3.67      
5 A 3067 2921 13.22      
6 A 3066 2920 88.01      
7 A 1512 1440 5.94      
8 A 1510 1439 23.84      
9 A 1489 1418 12.18      
10 A 1489 1418 0.27      
11 A 1465 1395 0.07      
12 A 1460 1390 6.71      
13 A 1238 1179 134.39      
14 A 1191 1135 2.32      
15 A 1183 1127 8.05      
16 A 1176 1120 3.64      
17 A 1174 1118 0.62      
18 A 1082 1031 0.12      
19 A 1042 993 325.44      
20 A 740 705 113.02      
21 A 672 640 230.43      
22 A 493 470 26.77      
23 A 431 411 0.82      
24 A 386 368 0.03      
25 A 275 262 6.21      
26 A 187 178 2.83      
27 A 141 135 0.61      
28 A 141 134 0.63      
29 A 59 56 8.71      
30 A 56 53 2.75      

Unscaled Zero Point Vibrational Energy (zpe) 19749.6 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 18811.5 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 MP2/cc-pVDZ
ABC
0.22353 0.06675 0.05575

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.251 0.446
O2 -0.000 1.501 -0.353
O3 1.167 -0.800 -0.171
O4 -1.167 -0.800 -0.171
C5 2.479 -0.222 -0.091
C6 -2.479 -0.222 -0.091
H7 3.157 -0.978 -0.509
H8 -3.157 -0.977 -0.510
H9 2.544 0.704 -0.686
H10 2.773 -0.010 0.954
H11 -2.774 -0.011 0.954
H12 -2.544 0.705 -0.685

Atom - Atom Distances (Å)
  S1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12
S11.48341.68751.68762.58052.58053.52003.52002.82132.83152.83202.8207
O21.48342.58632.58643.03053.03054.01704.01662.68693.41813.41882.6862
O31.68752.58632.33421.43613.69282.02644.34102.10332.11394.17344.0374
O41.68762.58642.33423.69281.43614.34112.02644.03764.17322.11392.1034
C52.58053.03051.43613.69284.95861.09815.70221.10261.10575.36005.1425
C62.58053.03053.69281.43614.95865.70221.09805.14285.35971.10571.1026
H73.52004.01702.02644.34111.09815.70226.31411.79901.79536.18465.9469
H83.52004.01664.34102.02645.70221.09806.31415.94686.18441.79541.7990
H92.82132.68692.10334.03761.10265.14281.79905.94681.80305.61095.0884
H102.83153.41812.11394.17321.10575.35971.79536.18441.80305.54705.6098
H112.83203.41884.17342.11395.36001.10576.18461.79545.61095.54701.8030
H122.82072.68624.03742.10345.14251.10265.94691.79905.08845.60981.8030

picture of Sulfurous acid, dimethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 O3 C5 111.156 S1 O4 C6 111.148
O2 S1 O3 109.133 O2 S1 O4 109.133
O3 S1 O4 87.515 O3 C5 H7 105.409
O3 C5 H9 111.217 O3 C5 H10 111.880
O4 C6 H8 105.409 O4 C6 H11 111.879
O4 C6 H12 111.218 H7 C5 H9 109.667
H7 C5 H10 109.104 H8 C6 H11 109.110
H8 C6 H12 109.666 H9 C5 H10 109.464
H11 C6 H12 109.461
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability