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: B3PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-727.884870
Energy at 298.15K-727.891118
Nuclear repulsion energy291.949289
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 B3PW91/aug-cc-pVDZ
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 3159 3047 23.34      
2 A 3144 3032 13.70      
3 A 3135 3024 0.13      
4 A 3081 2972 10.88      
5 A 3058 2950 11.37      
6 A 1882 1816 532.73      
7 A 1487 1434 4.73      
8 A 1469 1417 3.59      
9 A 1454 1403 7.66      
10 A 1405 1356 12.78      
11 A 1368 1320 7.90      
12 A 1290 1244 1.52      
13 A 1204 1161 489.07      
14 A 1160 1119 2.97      
15 A 1130 1090 19.97      
16 A 1049 1012 68.88      
17 A 923 890 82.73      
18 A 814 785 1.40      
19 A 671 647 13.05      
20 A 648 625 84.61      
21 A 526 507 4.56      
22 A 449 433 10.40      
23 A 326 315 4.87      
24 A 251 242 0.34      
25 A 191 184 0.05      
26 A 116 112 0.41      
27 A 77 74 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 17732.8 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 17105.0 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 B3PW91/aug-cc-pVDZ
ABC
0.16968 0.06090 0.04559

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.550 0.688 -0.000
H2 -1.155 -1.090 0.893
H3 -1.155 -1.090 -0.893
C4 -1.389 -0.497 -0.000
H5 -3.036 0.584 0.892
H6 -3.489 -0.889 -0.000
H7 -3.036 0.584 -0.892
C8 -2.821 -0.018 0.000
O9 1.476 1.602 -0.000
Cl10 1.476 -1.011 -0.000
C11 0.771 0.644 0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.07932.07921.45162.64343.33562.64322.37802.22222.64411.3218
H22.07931.78511.09692.51842.50763.08652.17333.86822.77912.7411
H32.07921.78511.09693.08652.50742.51842.17333.86822.77912.7413
C41.45161.09691.09692.16292.13692.16291.51033.55102.91042.4429
H52.64342.51843.08652.16291.78071.78381.09724.71024.86823.9107
H63.33562.50762.50742.13691.78071.78071.09825.55474.96684.5280
H72.64323.08652.51842.16291.78381.78071.09724.71014.86813.9107
C82.37802.17332.17331.51031.09721.09821.09724.59164.41033.6526
O92.22223.86823.86823.55104.71025.55474.71014.59162.61351.1889
Cl102.64412.77912.77912.91044.86824.96684.86814.41032.61351.7995
C111.32182.74112.74132.44293.91074.52803.91073.65261.18891.7995

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 108.548 O1 C4 H3 108.545
O1 C4 C8 106.791 O1 C11 O9 124.448
O1 C11 Cl10 114.939 H2 C4 H3 108.922
H2 C4 C8 111.955 H3 C4 C8 111.955
C4 O1 C11 123.416 C4 C8 H5 111.102
C4 C8 H6 108.986 C4 C8 H7 111.098
H5 C8 H6 108.412 H5 C8 H7 108.759
H6 C8 H7 108.406 O9 C11 Cl10 120.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.386      
2 H -0.302      
3 H -0.302      
4 C 1.066      
5 H -0.113      
6 H -0.093      
7 H -0.113      
8 C 0.373      
9 O -0.396      
10 Cl -0.100      
11 C 0.365      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.392 -2.300 0.000 4.098
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.587 -1.345 0.000
y -1.345 -45.839 0.001
z 0.000 0.001 -40.931
Traceless
 xyz
x 1.798 -1.345 0.000
y -1.345 -4.580 0.001
z 0.000 0.001 2.782
Polar
3z2-r25.565
x2-y24.252
xy-1.345
xz0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.836 0.032 0.000
y 0.032 9.547 0.000
z 0.000 0.000 6.695


<r2> (average value of r2) Å2
<r2> 232.470
(<r2>)1/2 15.247