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All results from a given calculation for CH2ClCHO (chloroacetaldehyde)

using model chemistry: ROHF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 bisecting, trans 1A
Energy calculated at ROHF/3-21G
 hartrees
Energy at 0K-608.766046
Energy at 298.15K-608.769468
HF Energy-608.766046
Nuclear repulsion energy141.394322
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 ROHF/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 3393 3077 0.66      
2 A 3303 2996 4.88      
3 A 3231 2931 43.99      
4 A 1923 1744 120.58      
5 A 1605 1456 16.17      
6 A 1553 1409 7.93      
7 A 1382 1254 22.40      
8 A 1298 1177 10.06      
9 A 1126 1021 13.73      
10 A 1085 984 26.63      
11 A 879 797 8.21      
12 A 706 641 49.65      
13 A 480 435 17.74      
14 A 317 287 11.34      
15 A 81 73 17.77      

Unscaled Zero Point Vibrational Energy (zpe) 11180.3 cm-1
Scaled (by 0.907) Zero Point Vibrational Energy (zpe) 10140.5 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 ROHF/3-21G
ABC
0.85160 0.09103 0.08689

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.062 0.761 0.107
C2 1.176 -0.233 0.310
Cl3 -1.544 -0.204 -0.082
O4 2.219 -0.179 -0.291
H5 -0.087 1.388 0.969
H6 0.197 1.333 -0.792
H7 0.966 -0.995 1.048

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7
C11.50771.88322.38661.07681.07352.1887
C21.50772.74861.20482.15842.15121.0816
Cl31.88322.74863.76912.40132.42862.8644
O42.38661.20483.76913.05922.57412.0076
H51.07682.15842.40133.05921.78472.6068
H61.07352.15122.42862.57411.78473.0659
H72.18871.08162.86442.00762.60683.0659

picture of chloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.854 C1 C2 H7 114.411
C2 C1 Cl3 107.793 C2 C1 H5 112.190
C2 C1 H6 111.801 Cl3 C1 H5 105.156
Cl3 C1 H6 107.256 O4 C2 H7 122.732
H5 C1 H6 112.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.671      
2 C 0.368      
3 Cl -0.052      
4 O -0.492      
5 H 0.305      
6 H 0.315      
7 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.156 1.342 1.547 2.053
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.146 0.107 2.121
y 0.107 -28.702 -0.266
z 2.121 -0.266 -29.668
Traceless
 xyz
x -11.961 0.107 2.121
y 0.107 6.705 -0.266
z 2.121 -0.266 5.256
Polar
3z2-r210.512
x2-y2-12.444
xy0.107
xz2.121
yz-0.266


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


<r2> (average value of r2) Å2
<r2> 123.516
(<r2>)1/2 11.114