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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: M06-2X/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-153.821036
Energy at 298.15K-153.824957
HF Energy-153.821036
Nuclear repulsion energy70.012774
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/daug-cc-pVTZ
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' 3179 3179 5.17 38.97 0.70 0.82
2 A' 3063 3063 1.26 180.89 0.01 0.01
3 A' 2944 2944 93.88 139.61 0.28 0.44
4 A' 1866 1866 203.87 12.13 0.44 0.61
5 A' 1466 1466 21.65 8.90 0.55 0.71
6 A' 1430 1430 12.82 3.42 0.30 0.46
7 A' 1380 1380 21.99 1.70 0.75 0.86
8 A' 1138 1138 25.09 3.00 0.20 0.33
9 A' 901 901 6.70 5.79 0.27 0.43
10 A' 513 513 14.90 1.39 0.31 0.47
11 A" 3125 3125 3.35 53.51 0.75 0.86
12 A" 1474 1474 9.97 3.71 0.75 0.86
13 A" 1145 1145 0.14 0.98 0.75 0.86
14 A" 775 775 1.55 2.57 0.75 0.86
15 A" 158 158 1.58 0.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12278.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12278.7 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/daug-cc-pVTZ
ABC
1.91256 0.34211 0.30656

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.461 0.000
C2 -0.928 -0.715 0.000
O3 1.197 0.380 0.000
H4 -0.488 1.455 0.000
H5 -0.366 -1.645 0.000
H6 -1.576 -0.664 0.877
H7 -1.576 -0.664 -0.877

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.49881.19981.10712.13782.12612.1261
C21.49882.39102.21471.08631.09141.0914
O31.19982.39101.99882.55813.09043.0904
H41.10712.21471.99883.10242.53882.5388
H52.13781.08632.55813.10241.78721.7872
H62.12611.09143.09042.53881.78721.7536
H72.12611.09143.09042.53881.78721.7536

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.565 C1 C2 H6 109.332
C1 C2 H7 109.332 C2 C1 O3 124.384
C2 C1 H4 115.581 O3 C1 H4 120.034
H5 C2 H6 110.312 H5 C2 H7 110.312
H6 C2 H7 106.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.058      
2 C -1.008      
3 O -1.184      
4 H 0.667      
5 H 0.543      
6 H 0.462      
7 H 0.462      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.897 -0.288 0.000 2.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.256 -0.818 0.000
y -0.818 -17.857 0.000
z 0.000 0.000 -18.006
Traceless
 xyz
x -3.325 -0.818 0.000
y -0.818 1.774 0.000
z 0.000 0.000 1.551
Polar
3z2-r23.102
x2-y2-3.399
xy-0.818
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.211 0.209 0.000
y 0.209 4.495 0.000
z 0.000 0.000 3.500


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