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All results from a given calculation for CH3CHO (Acetaldehyde)

using model chemistry: SVWN/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 SVWN/6-311G*
 hartrees
Energy at 0K-153.051258
Energy at 298.15K-153.055127
HF Energy-153.051258
Nuclear repulsion energy69.918666
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 SVWN/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' 3088 3058 5.24 56.38 0.73 0.84
2 A' 2962 2934 0.34 150.96 0.01 0.02
3 A' 2763 2737 154.17 184.89 0.33 0.49
4 A' 1823 1806 175.02 9.74 0.71 0.83
5 A' 1401 1388 28.11 20.78 0.61 0.75
6 A' 1376 1363 14.87 6.82 0.69 0.82
7 A' 1314 1302 56.52 5.90 0.74 0.85
8 A' 1106 1095 22.09 1.47 0.35 0.51
9 A' 881 873 5.59 4.92 0.59 0.75
10 A' 495 490 12.11 1.39 0.48 0.65
11 A" 3031 3002 1.72 73.90 0.75 0.86
12 A" 1407 1393 18.29 10.60 0.75 0.86
13 A" 1090 1080 1.34 2.14 0.75 0.86
14 A" 739 732 2.42 6.73 0.75 0.86
15 A" 161 159 0.01 1.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11818.4 cm-1
Scaled (by 0.9904) Zero Point Vibrational Energy (zpe) 11705.0 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 SVWN/6-311G*
ABC
1.90617 0.34297 0.30726

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.454 0.000
C2 -0.926 -0.704 0.000
O3 1.200 0.375 0.000
H4 -0.503 1.463 0.000
H5 -0.364 -1.648 0.000
H6 -1.590 -0.658 0.881
H7 -1.590 -0.658 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.48361.20301.12752.13372.13122.1312
C21.48362.38502.20871.09861.10411.1041
O31.20302.38502.02162.55733.10313.1031
H41.12752.20872.02163.11462.54142.5414
H52.13371.09862.55733.11461.80531.8053
H62.13121.10413.10312.54141.80531.7628
H72.13121.10413.10312.54141.80531.7628

picture of Acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.560 C1 C2 H6 110.031
C1 C2 H7 110.031 C2 C1 O3 124.855
C2 C1 H4 114.854 O3 C1 H4 120.291
H5 C2 H6 110.090 H5 C2 H7 110.090
H6 C2 H7 105.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.063      
2 C -0.782      
3 O -0.239      
4 H 0.164      
5 H 0.265      
6 H 0.265      
7 H 0.265      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.646 -0.354 0.000 2.669
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.730 -0.734 0.000
y -0.734 -18.171 0.000
z 0.000 0.000 -18.001
Traceless
 xyz
x -2.644 -0.734 0.000
y -0.734 1.194 0.000
z 0.000 0.000 1.450
Polar
3z2-r22.899
x2-y2-2.559
xy-0.734
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.805 0.130 0.000
y 0.130 4.194 0.000
z 0.000 0.000 2.870


<r2> (average value of r2) Å2
<r2> 46.582
(<r2>)1/2 6.825