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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: M06-2X/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-153.820792
Energy at 298.15K-153.824724
HF Energy-153.820792
Nuclear repulsion energy70.014077
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/aug-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 3038 5.17 38.85 0.70 0.83
2 A' 3062 2927 1.26 180.84 0.01 0.01
3 A' 2945 2815 93.48 139.48 0.28 0.44
4 A' 1866 1783 204.28 12.12 0.45 0.62
5 A' 1466 1401 21.74 8.93 0.55 0.71
6 A' 1431 1368 12.81 3.40 0.29 0.45
7 A' 1380 1319 22.05 1.70 0.75 0.86
8 A' 1138 1088 25.02 3.00 0.19 0.32
9 A' 901 861 6.66 5.75 0.27 0.43
10 A' 514 491 14.95 1.37 0.31 0.48
11 A" 3125 2987 3.37 53.61 0.75 0.86
12 A" 1474 1409 9.98 3.74 0.75 0.86
13 A" 1145 1095 0.15 1.00 0.75 0.86
14 A" 775 741 1.56 2.49 0.75 0.86
15 A" 158 151 1.61 0.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12279.9 cm-1
Scaled (by 0.9557) Zero Point Vibrational Energy (zpe) 11735.9 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 M06-2X/aug-cc-pVTZ
ABC
1.91234 0.34216 0.30659

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-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
C11.49871.19991.10702.13762.12612.1261
C21.49872.39092.21461.08631.09141.0914
O31.19992.39091.99882.55773.09033.0903
H41.10702.21461.99883.10222.53882.5388
H52.13761.08632.55773.10221.78731.7873
H62.12611.09143.09032.53881.78731.7537
H72.12611.09143.09032.53881.78731.7537

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.559 C1 C2 H6 109.335
C1 C2 H7 109.335 C2 C1 O3 124.375
C2 C1 H4 115.585 O3 C1 H4 120.040
H5 C2 H6 110.311 H5 C2 H7 110.311
H6 C2 H7 106.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.083      
2 C -0.684      
3 O -0.626      
4 H 0.423      
5 H 0.268      
6 H 0.267      
7 H 0.267      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.902 -0.287 0.000 2.916
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.268 -0.819 0.000
y -0.819 -17.857 0.000
z 0.000 0.000 -18.001
Traceless
 xyz
x -3.339 -0.819 0.000
y -0.819 1.778 0.000
z 0.000 0.000 1.561
Polar
3z2-r23.122
x2-y2-3.412
xy-0.819
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.208 0.210 0.000
y 0.210 4.482 0.000
z 0.000 0.000 3.484


<r2> (average value of r2) Å2
<r2> 46.611
(<r2>)1/2 6.827