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

using model chemistry: HF/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 HF/CEP-31G*
 hartrees
Energy at 0K-65.455485
Energy at 298.15K-65.461994
Nuclear repulsion energy129.672452
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 HF/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 3360 3017 66.27      
2 A 3319 2981 17.52      
3 A 3313 2975 66.71      
4 A 3292 2957 14.47      
5 A 3239 2908 31.94      
6 A 2046 1838 809.24      
7 A 1651 1483 3.72      
8 A 1625 1459 1.01      
9 A 1611 1447 4.56      
10 A 1575 1415 23.24      
11 A 1522 1367 7.35      
12 A 1419 1274 1.38      
13 A 1335 1198 690.45      
14 A 1278 1148 5.97      
15 A 1236 1110 51.88      
16 A 1133 1018 123.30      
17 A 1011 908 82.87      
18 A 876 787 0.00      
19 A 748 672 34.95      
20 A 715 642 84.14      
21 A 559 502 5.28      
22 A 509 457 8.55      
23 A 347 312 5.57      
24 A 276 248 0.68      
25 A 201 181 0.15      
26 A 101 91 0.03      
27 A 90 81 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 19193.8 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 17236.0 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 HF/CEP-31G*
ABC
0.17505 0.06031 0.04563

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.207 -0.541 -0.000
H2 1.059 1.124 0.886
H3 1.059 1.124 -0.886
C4 1.196 0.511 0.000
H5 2.670 -0.806 0.886
H6 3.344 0.575 0.000
H7 2.670 -0.805 -0.886
C8 2.558 -0.181 0.000
O9 -1.892 -1.218 0.000
Cl10 -1.620 1.347 -0.000
C11 -1.092 -0.351 -0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.06932.06931.44382.63133.32972.63132.37822.20502.62681.3124
H22.06931.77151.08602.51392.51143.07542.17603.86912.82992.7535
H32.06931.77151.08603.07542.51132.51402.17603.86932.82992.7536
C41.44381.08601.08602.16572.14862.16571.52733.53852.93742.4445
H52.63132.51393.07542.16571.77341.77161.08944.66564.88083.8916
H63.32972.51142.51132.14861.77341.77341.09125.53405.02314.5310
H72.63133.07542.51402.16571.77161.77341.08944.66574.88083.8917
C82.37822.17602.17601.52731.08941.09121.08944.56854.44813.6532
O92.20503.86913.86933.53854.66565.53404.66574.56852.57851.1797
Cl102.62682.82992.82992.93744.88085.02314.88084.44812.57851.7776
C111.31242.75352.75362.44453.89164.53103.89173.65321.17971.7776

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 108.939 O1 C4 H3 108.939
O1 C4 C8 106.309 O1 C11 O9 124.368
O1 C11 Cl10 115.626 H2 C4 H3 109.292
H2 C4 C8 111.630 H3 C4 C8 111.630
C4 O1 C11 124.906 C4 C8 H5 110.599
C4 C8 H6 109.148 C4 C8 H7 110.599
H5 C8 H6 108.830 H5 C8 H7 108.794
H6 C8 H7 108.830 O9 C11 Cl10 120.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.199      
2 H 0.145      
3 H 0.145      
4 C -0.111      
5 H 0.123      
6 H 0.118      
7 H 0.123      
8 C -0.224      
9 O -0.144      
10 Cl -0.118      
11 C 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.875 2.400 0.000 4.558
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.065 -1.844 0.001
y -1.844 -44.575 0.000
z 0.001 0.000 -39.986
Traceless
 xyz
x -1.785 -1.844 0.001
y -1.844 -2.549 0.000
z 0.001 0.000 4.334
Polar
3z2-r28.668
x2-y20.510
xy-1.844
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.861 -0.143 0.000
y -0.143 7.354 0.000
z 0.000 0.000 4.563


<r2> (average value of r2) Å2
<r2> 163.518
(<r2>)1/2 12.787