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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: wB97X-D/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/daug-cc-pVDZ
 hartrees
Energy at 0K-153.800184
Energy at 298.15K-153.804107
HF Energy-153.800184
Nuclear repulsion energy69.648128
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 wB97X-D/daug-cc-pVDZ
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' 3176 3176 9.26 41.97 0.71 0.83
2 A' 3044 3044 2.53 188.26 0.01 0.01
3 A' 2914 2914 113.09 152.83 0.29 0.44
4 A' 1841 1841 201.25 12.27 0.45 0.62
5 A' 1439 1439 22.39 10.21 0.50 0.67
6 A' 1420 1420 11.56 1.84 0.30 0.47
7 A' 1363 1363 24.60 1.86 0.75 0.86
8 A' 1131 1131 22.79 3.04 0.19 0.32
9 A' 900 900 6.45 5.44 0.30 0.46
10 A' 510 510 14.26 1.32 0.28 0.43
11 A" 3120 3120 7.06 57.82 0.75 0.86
12 A" 1449 1449 10.84 3.60 0.75 0.86
13 A" 1132 1132 0.09 1.04 0.75 0.86
14 A" 771 771 1.61 2.80 0.75 0.86
15 A" 158 158 1.36 0.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12184.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12184.0 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 wB97X-D/daug-cc-pVDZ
ABC
1.89350 0.33897 0.30379

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.461 0.000
C2 -0.933 -0.715 0.000
O3 1.205 0.380 0.000
H4 -0.491 1.463 0.000
H5 -0.374 -1.656 0.000
H6 -1.587 -0.659 0.883
H7 -1.587 -0.659 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.50141.20741.11572.14982.13322.1332
C21.50142.40182.22241.09471.10011.1001
O31.20742.40182.01222.57583.10623.1062
H41.11572.22242.01223.12112.54572.5457
H52.14981.09472.57583.12111.80181.8018
H62.13321.10013.10622.54571.80181.7663
H72.13321.10013.10622.54571.80181.7663

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.832 C1 C2 H6 109.199
C1 C2 H7 109.199 C2 C1 O3 124.563
C2 C1 H4 115.458 O3 C1 H4 119.979
H5 C2 H6 110.355 H5 C2 H7 110.355
H6 C2 H7 106.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.568      
2 C 0.979      
3 O -0.537      
4 H -0.493      
5 H -0.287      
6 H -0.115      
7 H -0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.919 -0.308 0.000 2.936
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.240 -0.799 0.000
y -0.799 -17.828 0.000
z 0.000 0.000 -17.909
Traceless
 xyz
x -3.372 -0.799 0.000
y -0.799 1.747 0.000
z 0.000 0.000 1.625
Polar
3z2-r23.250
x2-y2-3.413
xy-0.799
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.371 0.194 0.000
y 0.194 4.624 0.000
z 0.000 0.000 3.604


<r2> (average value of r2) Å2
<r2> 46.918
(<r2>)1/2 6.850