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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: M06-2X/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-311G**
 hartrees
Energy at 0K-153.800151
Energy at 298.15K-153.804079
HF Energy-153.800151
Nuclear repulsion energy69.927853
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 M06-2X/6-311G**
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' 3183 3183 5.70 47.99 0.72 0.84
2 A' 3063 3063 1.12 140.29 0.01 0.02
3 A' 2939 2939 111.40 139.42 0.33 0.49
4 A' 1883 1883 188.87 8.75 0.67 0.80
5 A' 1468 1468 22.23 14.81 0.65 0.79
6 A' 1436 1436 15.56 5.24 0.50 0.67
7 A' 1379 1379 26.15 3.35 0.64 0.78
8 A' 1136 1136 26.12 2.65 0.34 0.50
9 A' 899 899 6.07 5.60 0.37 0.55
10 A' 513 513 15.00 1.48 0.49 0.66
11 A" 3130 3130 5.02 63.31 0.75 0.86
12 A" 1476 1476 12.94 8.55 0.75 0.86
13 A" 1145 1145 0.57 1.01 0.75 0.86
14 A" 777 777 1.25 5.01 0.75 0.86
15 A" 158 158 0.71 0.92 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12293.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12293.5 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 M06-2X/6-311G**
ABC
1.90393 0.34133 0.30580

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.464 0.000
C2 -0.928 -0.719 0.000
O3 1.196 0.383 0.000
H4 -0.494 1.458 0.000
H5 -0.354 -1.643 0.000
H6 -1.577 -0.677 0.879
H7 -1.577 -0.677 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.50361.19911.10962.13652.13562.1356
C21.50362.39342.21941.08841.09331.0933
O31.19912.39342.00282.55103.09633.0963
H41.10962.21942.00283.10392.54972.5497
H52.13651.08842.55103.10391.78981.7898
H62.13561.09333.09632.54971.78981.7584
H72.13561.09333.09632.54971.78981.7584

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 109.998 C1 C2 H6 109.627
C1 C2 H7 109.627 C2 C1 O3 124.259
C2 C1 H4 115.446 O3 C1 H4 120.295
H5 C2 H6 110.245 H5 C2 H7 110.245
H6 C2 H7 107.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.173      
2 C -0.435      
3 O -0.303      
4 H 0.090      
5 H 0.162      
6 H 0.157      
7 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.715 -0.241 0.000 2.726
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.906 -0.892 0.000
y -0.892 -17.885 0.000
z 0.000 0.000 -17.875
Traceless
 xyz
x -3.026 -0.892 0.000
y -0.892 1.505 0.000
z 0.000 0.000 1.521
Polar
3z2-r23.041
x2-y2-3.021
xy-0.892
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.537 0.125 0.000
y 0.125 3.825 0.000
z 0.000 0.000 2.786


<r2> (average value of r2) Å2
<r2> 46.613
(<r2>)1/2 6.827