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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: B97D3/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 B97D3/daug-cc-pVTZ
 hartrees
Energy at 0K-153.802039
Energy at 298.15K-153.805904
HF Energy-153.802039
Nuclear repulsion energy69.494942
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 B97D3/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' 3093 3093 11.90 47.00 0.67 0.80
2 A' 2972 2972 3.13 203.97 0.01 0.02
3 A' 2784 2784 149.76 193.93 0.30 0.46
4 A' 1753 1753 188.29 13.36 0.51 0.68
5 A' 1430 1430 22.00 10.17 0.51 0.68
6 A' 1390 1390 8.42 3.45 0.41 0.58
7 A' 1343 1343 26.57 3.23 0.71 0.83
8 A' 1103 1103 25.37 2.64 0.19 0.32
9 A' 862 862 11.82 6.51 0.41 0.58
10 A' 500 500 11.34 1.42 0.29 0.45
11 A" 3028 3028 7.64 64.63 0.75 0.86
12 A" 1438 1438 9.47 3.95 0.75 0.86
13 A" 1103 1103 0.07 1.49 0.75 0.86
14 A" 751 751 1.19 3.94 0.75 0.86
15 A" 152 152 0.81 1.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11851.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11851.1 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 B97D3/daug-cc-pVTZ
ABC
1.90379 0.33606 0.30154

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.459 0.000
C2 -0.934 -0.721 0.000
O3 1.209 0.388 0.000
H4 -0.506 1.456 0.000
H5 -0.382 -1.662 0.000
H6 -1.589 -0.665 0.879
H7 -1.589 -0.665 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.50511.21081.11782.15582.13622.1362
C21.50512.41272.21891.09141.09771.0977
O31.21082.41272.01992.59503.11643.1164
H41.11782.21892.01993.12102.53922.5392
H52.15581.09142.59503.12101.79581.7958
H62.13621.09773.11642.53921.79581.7574
H72.13621.09773.11642.53921.79581.7574

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.253 C1 C2 H6 109.318
C1 C2 H7 109.318 C2 C1 O3 124.981
C2 C1 H4 114.750 O3 C1 H4 120.269
H5 C2 H6 110.234 H5 C2 H7 110.234
H6 C2 H7 106.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.312      
2 C -0.246      
3 O -1.078      
4 H 0.424      
5 H 0.215      
6 H 0.187      
7 H 0.187      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.755 -0.376 0.000 2.781
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.216 -0.706 0.000
y -0.706 -18.098 0.000
z 0.000 0.000 -17.977
Traceless
 xyz
x -3.178 -0.706 0.000
y -0.706 1.498 0.000
z 0.000 0.000 1.680
Polar
3z2-r23.360
x2-y2-3.117
xy-0.706
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.694 0.243 0.000
y 0.243 4.961 0.000
z 0.000 0.000 3.704


<r2> (average value of r2) Å2
<r2> 47.207
(<r2>)1/2 6.871