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: wB97X-D/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 wB97X-D/6-31G*
 hartrees
Energy at 0K-727.875809
Energy at 298.15K-727.881997
HF Energy-727.875809
Nuclear repulsion energy 
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 wB97X-D/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 3186 3022 25.24      
2 A 3175 3011 15.34      
3 A 3160 2997 3.64      
4 A 3104 2944 12.02      
5 A 3091 2931 11.41      
6 A 1961 1860 527.88      
7 A 1542 1462 3.96      
8 A 1525 1447 6.32      
9 A 1524 1445 7.93      
10 A 1460 1385 15.33      
11 A 1418 1345 8.37      
12 A 1324 1256 1.09      
13 A 1257 1192 533.70      
14 A 1193 1131 4.65      
15 A 1161 1101 30.14      
16 A 1068 1013 76.71      
17 A 948 899 87.49      
18 A 825 783 0.93      
19 A 677 642 22.08      
20 A 666 631 89.81      
21 A 536 509 3.72      
22 A 462 438 8.91      
23 A 334 316 5.50      
24 A 263 249 0.58      
25 A 194 184 0.11      
26 A 107 102 0.41      
27 A 33 31 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 18095.3 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 17163.4 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 wB97X-D/6-31G*
ABC
0.17080 0.06086 0.04565

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.565 0.658 0.000
H2 1.177 -1.114 -0.890
H3 1.177 -1.114 0.890
C4 1.403 -0.522 0.000
H5 3.036 0.575 -0.888
H6 3.516 -0.886 -0.000
H7 3.036 0.575 0.888
C8 2.835 -0.029 -0.000
O9 -1.429 1.617 -0.000
Cl10 -1.525 -0.986 0.000
C11 -0.757 0.640 -0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.07532.07531.44792.62773.33072.62772.37192.21232.65881.3217
H22.07531.77941.09242.51222.51323.07772.17213.87852.84722.7585
H32.07531.77941.09243.07772.51322.51222.17213.87852.84722.7585
C41.44791.09241.09242.15852.14372.15851.51403.54952.96472.4533
H52.62772.51223.07772.15851.77551.77661.09304.67044.90203.8964
H63.33072.51322.51322.14371.77551.77551.09435.54225.04184.5373
H72.62773.07772.51222.15851.77661.77551.09304.67044.90203.8964
C82.37192.17212.17211.51401.09301.09431.09304.57064.46343.6536
O92.21233.87853.87853.54954.67045.54224.67044.57062.60541.1858
Cl102.65882.84722.84722.96474.90205.04184.90204.46342.60541.7988
C111.32172.75852.75852.45333.89644.53733.89643.65361.18581.7988

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 108.759 O1 C4 H3 108.759
O1 C4 C8 106.395 O1 C11 O9 123.755
O1 C11 Cl10 116.032 H2 C4 H3 109.064
H2 C4 C8 111.874 H3 C4 C8 111.874
C4 O1 C11 124.638 C4 C8 H5 110.747
C4 C8 H6 109.496 C4 C8 H7 110.747
H5 C8 H6 108.533 H5 C8 H7 108.725
H6 C8 H7 108.533 O9 C11 Cl10 120.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.411      
2 H 0.197      
3 H 0.197      
4 C -0.092      
5 H 0.195      
6 H 0.183      
7 H 0.195      
8 C -0.519      
9 O -0.381      
10 Cl -0.057      
11 C 0.494      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.435 -2.206 0.000 4.082
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.274 0.889 0.000
y 0.889 -45.133 0.000
z 0.000 0.000 -40.390
Traceless
 xyz
x 1.487 0.889 0.000
y 0.889 -4.301 0.000
z 0.000 0.000 2.814
Polar
3z2-r25.628
x2-y23.858
xy0.889
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.469 0.037 0.000
y 0.037 7.728 0.000
z 0.000 0.000 4.863


<r2> (average value of r2) Å2
<r2> 231.880
(<r2>)1/2 15.228