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

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 C1 1A
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-66.295316
Energy at 298.15K-66.301607
HF Energy-65.450424
Nuclear repulsion energy127.995689
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 A 3228 3065 40.81      
2 A 3208 3046 0.00      
3 A 3204 3042 22.29      
4 A 3137 2978 18.62      
5 A 3105 2948 16.57      
6 A 1852 1759 496.89      
7 A 1537 1459 3.49      
8 A 1523 1446 3.17      
9 A 1512 1435 7.19      
10 A 1461 1387 23.38      
11 A 1411 1340 11.28      
12 A 1320 1254 0.09      
13 A 1199 1138 514.12      
14 A 1192 1132 5.41      
15 A 1156 1098 41.74      
16 A 1059 1006 82.79      
17 A 937 890 99.07      
18 A 836 794 0.84      
19 A 658 625 14.87      
20 A 653 620 78.99      
21 A 524 498 3.54      
22 A 458 434 9.48      
23 A 329 313 5.00      
24 A 271 257 0.50      
25 A 199 189 0.09      
26 A 107 101 0.33      
27 A 103 98 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 18089.2 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 17173.9 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
0.16641 0.06020 0.04498

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.212 -0.585 -0.001
H2 1.050 1.119 0.899
H3 1.052 1.117 -0.902
C4 1.202 0.502 -0.001
H5 2.678 -0.822 0.899
H6 3.361 0.574 0.001
H7 2.680 -0.824 -0.896
C8 2.567 -0.193 0.001
O9 -1.957 -1.214 0.001
Cl10 -1.569 1.396 0.000
C11 -1.111 -0.344 -0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.10122.10111.47012.63583.35562.63582.38692.25822.66381.3446
H22.10121.80041.10142.53332.53843.10632.19693.91012.78282.7600
H32.10111.80041.10133.10622.53822.53302.19683.91202.78642.7620
C41.47011.10141.10132.17762.16042.17751.53133.59472.91182.4628
H52.63582.53333.10622.17761.79501.79511.10224.73724.87493.9232
H63.35562.53842.53822.16041.79501.79501.10445.61044.99844.5653
H72.63583.10632.53302.17751.79511.79501.10224.73874.87683.9245
C82.38692.19692.19681.53131.10221.10441.10224.63714.43053.6805
O92.25823.91013.91203.59474.73725.61044.73874.63712.63811.2132
Cl102.66382.78282.78642.91184.87494.99844.87684.43052.63811.7993
C111.34462.76002.76202.46283.92324.56533.92453.68051.21321.7993

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 108.750 O1 C4 H3 108.751
O1 C4 C8 105.341 O1 C11 O9 123.899
O1 C11 Cl10 115.073 H2 C4 H3 109.645
H2 C4 C8 112.091 H3 C4 C8 112.083
C4 O1 C11 122.018 C4 C8 H5 110.498
C4 C8 H6 109.024 C4 C8 H7 110.490
H5 C8 H6 108.876 H5 C8 H7 109.046
H6 C8 H7 108.871 O9 C11 Cl10 121.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability