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: B3LYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-727.984150
Energy at 298.15K-727.990347
Nuclear repulsion energy290.620429
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 B3LYP/6-31G**
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 3153 3030 27.30      
2 A 3139 3016 15.93      
3 A 3129 3007 1.72      
4 A 3079 2959 11.12      
5 A 3063 2943 11.04      
6 A 1919 1844 487.12      
7 A 1529 1469 3.66      
8 A 1511 1452 5.29      
9 A 1499 1440 6.19      
10 A 1438 1382 12.38      
11 A 1404 1349 7.81      
12 A 1307 1256 0.75      
13 A 1205 1158 514.81      
14 A 1178 1132 4.17      
15 A 1139 1094 22.71      
16 A 1036 995 62.08      
17 A 925 889 102.45      
18 A 825 793 0.90      
19 A 663 637 19.56      
20 A 638 613 93.52      
21 A 525 504 3.90      
22 A 437 419 14.54      
23 A 326 313 6.00      
24 A 259 249 0.52      
25 A 191 183 0.17      
26 A 110 106 0.66      
27 A 74 71 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 17850.0 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 17150.3 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 B3LYP/6-31G**
ABC
0.16797 0.06023 0.04509

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.559 0.679 -0.000
H2 -1.166 -1.103 0.889
H3 -1.166 -1.105 -0.887
C4 -1.397 -0.510 0.000
H5 -3.042 0.578 0.887
H6 -3.506 -0.887 0.000
H7 -3.041 0.577 -0.888
C8 -2.833 -0.025 -0.000
O9 1.459 1.621 0.000
Cl10 1.500 -1.010 -0.000
C11 0.766 0.655 0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.08232.08221.45492.63873.33792.63872.38062.22652.66301.3246
H22.08231.77591.09282.51882.51233.08172.17493.88622.81252.7592
H32.08221.77591.09283.08172.51232.51882.17503.88642.81142.7593
C41.45491.09281.09282.16242.14282.16231.51563.56332.94002.4565
H52.63872.51883.08172.16241.77471.77511.09294.70404.89283.9101
H63.33792.51232.51232.14281.77471.77461.09415.56265.00814.5418
H72.63873.08172.51882.16231.77511.77461.09294.70434.89223.9102
C82.38062.17492.17501.51561.09291.09411.09294.59644.44363.6622
O92.22653.88623.88643.56334.70405.56264.70434.59642.63141.1890
Cl102.66302.81252.81142.94004.89285.00814.89224.44362.63141.8197
C111.32462.75922.75932.45653.91014.54183.91023.66221.18901.8197

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 108.806 O1 C4 H3 108.804
O1 C4 C8 106.513 O1 C11 O9 124.608
O1 C11 Cl10 114.849 H2 C4 H3 108.692
H2 C4 C8 111.958 H3 C4 C8 111.966
C4 O1 C11 124.142 C4 C8 H5 110.944
C4 C8 H6 109.323 C4 C8 H7 110.939
H5 C8 H6 108.485 H5 C8 H7 108.605
H6 C8 H7 108.475 O9 C11 Cl10 120.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.405      
2 H 0.139      
3 H 0.139      
4 C 0.033      
5 H 0.135      
6 H 0.121      
7 H 0.135      
8 C -0.339      
9 O -0.367      
10 Cl -0.072      
11 C 0.482      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.463 -2.059 0.001 4.029
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.356 -0.729 -0.001
y -0.729 -45.195 0.001
z -0.001 0.001 -40.563
Traceless
 xyz
x 1.523 -0.729 -0.001
y -0.729 -4.236 0.001
z -0.001 0.001 2.713
Polar
3z2-r25.426
x2-y23.839
xy-0.729
xz-0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.809 -0.053 -0.001
y -0.053 7.906 0.001
z -0.001 0.001 4.894


<r2> (average value of r2) Å2
<r2> 234.373
(<r2>)1/2 15.309