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

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-722.151780
Energy at 298.15K-722.158141
Nuclear repulsion energy291.554462
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/3-21G*
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 3325 3001 26.09      
2 A 3294 2973 1.43      
3 A 3288 2968 19.90      
4 A 3262 2945 5.63      
5 A 3221 2907 11.82      
6 A 2003 1808 578.10      
7 A 1684 1520 5.85      
8 A 1669 1507 7.02      
9 A 1655 1494 7.08      
10 A 1583 1429 10.45      
11 A 1542 1391 19.19      
12 A 1433 1293 0.28      
13 A 1285 1160 8.38      
14 A 1277 1153 564.72      
15 A 1239 1118 38.15      
16 A 1070 965 87.60      
17 A 980 885 162.16      
18 A 913 824 0.78      
19 A 738 666 46.15      
20 A 660 596 129.93      
21 A 548 494 4.94      
22 A 472 426 16.63      
23 A 337 304 8.49      
24 A 261 236 1.02      
25 A 191 173 0.11      
26 A 90 81 0.97      
27 A 74 66 2.37      

Unscaled Zero Point Vibrational Energy (zpe) 19046.0 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 17190.9 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 HF/3-21G*
ABC
0.17276 0.05975 0.04514

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.553 0.633 0.000
H2 -1.215 -1.133 0.882
H3 -1.214 -1.134 -0.880
C4 -1.422 -0.548 0.000
H5 -2.997 0.614 0.878
H6 -3.551 -0.813 -0.000
H7 -2.997 0.613 -0.879
C8 -2.839 0.004 -0.000
O9 1.443 1.614 -0.000
Cl10 1.518 -0.984 -0.000
C11 0.769 0.644 0.000

Atom - Atom Distances (Å)
  O1 H2 H3 C4 H5 H6 H7 C8 O9 Cl10 C11
O12.08252.08251.46602.59733.32832.59722.37092.22442.62731.3220
H22.08251.76221.07832.49562.51713.05372.16963.92362.87532.8057
H32.08251.76221.07833.05372.51712.49572.16953.92342.87432.8053
C41.46601.07831.07832.14502.14542.14501.52043.58922.97152.4936
H52.59732.49563.05372.14501.76411.75731.08114.63614.86903.8674
H63.32832.51712.51712.14541.76411.76411.08325.55275.07114.5586
H72.59723.05372.49572.14501.75731.76411.08114.63584.86843.8671
C82.37092.16962.16951.52041.08111.08321.08114.57514.46683.6640
O92.22443.92363.92343.58924.63615.55274.63584.57512.59921.1819
Cl102.62732.87532.87432.97154.86905.07114.86844.46682.59921.7914
C111.32202.80572.80532.49363.86744.55863.86713.66401.18191.7914

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 108.915 O1 C4 H3 108.914
O1 C4 C8 105.086 O1 C11 O9 125.244
O1 C11 Cl10 114.252 H2 C4 H3 109.595
H2 C4 C8 112.081 H3 C4 C8 112.078
C4 O1 C11 126.787 C4 C8 H5 109.931
C4 C8 H6 109.839 C4 C8 H7 109.933
H5 C8 H6 109.192 H5 C8 H7 108.729
H6 C8 H7 109.192 O9 C11 Cl10 120.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.696 -0.533    
2 H 0.243 -0.006    
3 H 0.243 -0.006    
4 C -0.102 0.439    
5 H 0.238 0.115    
6 H 0.213 0.097    
7 H 0.238 0.115    
8 C -0.606 -0.367    
9 O -0.537 -0.549    
10 Cl -0.067 -0.226    
11 C 0.834 0.922    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.509 -2.879 0.000 4.539
CHELPG -3.516 -2.763 0.000 4.472
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.577 -0.956 -0.000
y -0.956 -47.022 -0.001
z -0.000 -0.001 -41.190
Traceless
 xyz
x 1.529 -0.956 -0.000
y -0.956 -5.139 -0.001
z -0.000 -0.001 3.610
Polar
3z2-r27.220
x2-y24.445
xy-0.956
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.416 0.011 -0.000
y 0.011 6.894 0.000
z -0.000 0.000 4.171


<r2> (average value of r2) Å2
<r2> 234.920
(<r2>)1/2 15.327