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All results from a given calculation for C3H5ClO2 (Carbonochloridic acid, ethyl ester)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-722.805953
Energy at 298.15K-722.812033
HF Energy-722.145311
Nuclear repulsion energy286.145744
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 MP2/3-21G*
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 3205 3049 19.37      
2 A 3183 3028 0.55      
3 A 3183 3028 10.55      
4 A 3132 2979 5.09      
5 A 3107 2956 6.63      
6 A 1803 1715 333.16      
7 A 1608 1530 4.38      
8 A 1598 1520 12.10      
9 A 1589 1511 6.83      
10 A 1501 1428 9.82      
11 A 1436 1366 28.26      
12 A 1348 1282 0.00      
13 A 1212 1153 4.90      
14 A 1165 1109 11.33      
15 A 1126 1071 419.49      
16 A 1009 960 28.27      
17 A 890 847 190.14      
18 A 871 828 1.19      
19 A 646 614 20.53      
20 A 592 563 116.50      
21 A 507 483 2.60      
22 A 378 360 60.54      
23 A 317 301 11.02      
24 A 264 251 0.77      
25 A 191 182 0.46      
26 A 92 87 1.87      
27 A 81 77 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 18015.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 17138.2 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 MP2/3-21G*
ABC
0.15899 0.05951 0.04403

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.568 0.714 -0.000
H2 1.182 -1.112 -0.891
H3 1.182 -1.112 0.891
C4 1.412 -0.526 0.000
H5 3.024 0.607 -0.889
H6 3.547 -0.847 0.000
H7 3.024 0.607 0.889
C8 2.850 -0.003 0.000
O9 -1.526 1.642 0.000
Cl10 -1.479 -1.053 0.000
C11 -0.787 0.681 -0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.12282.12281.49992.61453.36342.61452.39232.29022.70401.3550
H22.12281.78301.09142.51912.54073.08492.19223.96402.80702.8087
H32.12281.78301.09143.08492.54072.51912.19223.96402.80702.8086
C41.49991.09141.09142.16132.15862.16131.52993.65122.93872.5086
H52.61452.51913.08492.16131.78301.77841.09224.75034.88083.9140
H63.36342.54072.54072.15861.78301.78301.09475.65065.02974.5954
H72.61453.08492.51912.16131.77841.78301.09224.75024.88083.9140
C82.39232.19222.19221.52991.09221.09471.09224.67514.45443.7008
O92.29023.96403.96403.65124.75035.65064.75024.67512.69561.2119
Cl102.70402.80702.80702.93874.88085.02974.88084.45442.69561.8676
C111.35502.80872.80862.50863.91404.59543.91403.70081.21191.8676

picture of Carbonochloridic acid, ethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C4 H2 108.985 O1 C4 H3 108.986
O1 C4 C8 104.287 O1 C11 O9 126.207
O1 C11 Cl10 113.120 H2 C4 H3 109.531
H2 C4 C8 112.422 H3 C4 C8 112.422
C4 O1 C11 122.886 C4 C8 H5 109.904
C4 C8 H6 109.547 C4 C8 H7 109.904
H5 C8 H6 109.233 H5 C8 H7 109.001
H6 C8 H7 109.233 O9 C11 Cl10 120.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability