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 C3H5ClO2 (Carbonochloridic acid, ethyl ester)

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-726.886601
Energy at 298.15K-726.893002
HF Energy-725.806392
Nuclear repulsion energy292.939024
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=FULL/6-311G*
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 3209 3039 23.69      
2 A 3192 3023 13.11      
3 A 3187 3019 0.90      
4 A 3126 2961 11.70      
5 A 3100 2936 10.34      
6 A 1891 1791 470.51      
7 A 1559 1477 6.40      
8 A 1538 1456 5.51      
9 A 1524 1444 9.74      
10 A 1465 1387 24.71      
11 A 1433 1357 8.26      
12 A 1349 1277 0.45      
13 A 1217 1152 517.07      
14 A 1208 1144 4.09      
15 A 1168 1106 28.03      
16 A 1074 1018 85.05      
17 A 949 899 103.57      
18 A 848 803 0.45      
19 A 678 642 16.68      
20 A 660 625 90.85      
21 A 538 510 2.79      
22 A 462 438 12.07      
23 A 340 322 5.03      
24 A 274 260 0.54      
25 A 204 194 0.08      
26 A 110 105 0.52      
27 A 106 100 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 18203.9 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 17240.9 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=FULL/6-311G*
ABC
0.17031 0.06156 0.04600

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.552 0.691 -0.000
H2 -1.150 -1.088 0.888
H3 -1.150 -1.088 -0.888
C4 -1.377 -0.497 -0.000
H5 -3.009 0.589 0.886
H6 -3.483 -0.870 0.000
H7 -3.009 0.590 -0.886
C8 -2.807 -0.013 0.000
O9 1.481 1.595 0.000
Cl10 1.460 -1.012 0.000
C11 0.775 0.640 0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.07652.07651.44622.61353.32042.61342.36162.22532.63671.3281
H22.07651.77571.09052.50392.50543.06872.16553.86152.75842.7350
H32.07651.77571.09053.06872.50542.50402.16553.86182.75882.7352
C41.44621.09051.09052.15162.13882.15161.50973.54182.88382.4336
H52.61352.50393.06872.15161.77231.77231.09034.68554.82953.8862
H63.32042.50542.50542.13881.77231.77231.09215.54244.94544.5175
H72.61343.06872.50402.15161.77231.77231.09034.68584.82993.8864
C82.36162.16552.16551.50971.09031.09211.09034.57924.38273.6405
O92.22533.86153.86183.54184.68555.54244.68584.57922.60731.1879
Cl102.63672.75842.75882.88384.82954.94544.82994.38272.60731.7888
C111.32812.73502.73522.43363.88624.51753.88643.64051.18791.7888

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 109.083 O1 C4 H3 109.078
O1 C4 C8 106.045 O1 C11 O9 124.279
O1 C11 Cl10 114.745 H2 C4 H3 109.006
H2 C4 C8 111.766 H3 C4 C8 111.770
C4 O1 C11 122.559 C4 C8 H5 110.659
C4 C8 H6 109.535 C4 C8 H7 110.661
H5 C8 H6 108.600 H5 C8 H7 108.733
H6 C8 H7 108.599 O9 C11 Cl10 120.976
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability