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All results from a given calculation for CH2ClCHO (chloroacetaldehyde)

using model chemistry: ROHF/6-31G*

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/6-31G*
 hartrees
Energy at 0K-611.811686
Energy at 298.15K-611.815067
HF Energy-611.811686
Nuclear repulsion energy143.606439
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/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 3359 2991 1.11      
2 A 3282 2922 12.50      
3 A 3214 2862 54.30      
4 A 2036 1813 211.88      
5 A 1599 1424 10.47      
6 A 1546 1377 14.63      
7 A 1417 1261 37.20      
8 A 1322 1177 3.34      
9 A 1150 1024 3.83      
10 A 1132 1008 32.63      
11 A 879 783 44.40      
12 A 774 689 17.69      
13 A 495 440 14.64      
14 A 305 272 15.52      
15 A 47 42 24.07      

Unscaled Zero Point Vibrational Energy (zpe) 11277.3 cm-1
Scaled (by 0.8904) Zero Point Vibrational Energy (zpe) 10041.3 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 ROHF/6-31G*
ABC
1.10456 0.09044 0.08592

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.028 0.651 0.110
C2 1.165 -0.351 0.141
Cl3 -1.553 -0.156 -0.060
O4 2.268 -0.042 -0.161
H5 0.015 1.208 1.037
H6 0.163 1.333 -0.714
H7 0.915 -1.357 0.478

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7
C11.51571.78272.36031.08111.07792.2259
C21.51572.73231.18412.13412.13751.0910
Cl31.78272.73233.82362.34922.36352.7964
O42.36031.18413.82362.84132.57451.9924
H51.08112.13412.34922.84131.76112.7752
H61.07792.13752.36352.57451.76113.0368
H72.22591.09102.79641.99242.77523.0368

picture of chloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.436 C1 C2 H7 116.332
C2 C1 Cl3 111.607 C2 C1 H5 109.400
C2 C1 H6 109.853 Cl3 C1 H5 107.701
Cl3 C1 H6 108.920 O4 C2 H7 122.215
H5 C1 H6 109.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.481      
2 C 0.327      
3 Cl -0.081      
4 O -0.451      
5 H 0.248      
6 H 0.255      
7 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.779 0.476 0.891 1.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.581 -0.581 1.197
y -0.581 -28.249 -0.034
z 1.197 -0.034 -29.290
Traceless
 xyz
x -11.811 -0.581 1.197
y -0.581 6.687 -0.034
z 1.197 -0.034 5.125
Polar
3z2-r210.250
x2-y2-12.332
xy-0.581
xz1.197
yz-0.034


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> 122.630
(<r2>)1/2 11.074