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All results from a given calculation for CHOCH2OH (hydroxy acetaldehyde)

using model chemistry: BLYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS H in 1A'
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-228.982513
Energy at 298.15K-228.987348
Nuclear repulsion energy118.380297
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 BLYP/6-31G**
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' 3511 3484 45.71      
2 A' 2882 2860 68.57      
3 A' 2845 2823 74.38      
4 A' 1727 1714 116.83      
5 A' 1455 1443 24.27      
6 A' 1409 1398 69.26      
7 A' 1359 1348 25.31      
8 A' 1266 1257 37.21      
9 A' 1085 1077 70.40      
10 A' 834 827 49.73      
11 A' 742 736 4.91      
12 A' 288 286 23.02      
13 A" 2886 2864 35.44      
14 A" 1202 1193 3.92      
15 A" 1069 1061 0.10      
16 A" 697 691 0.38      
17 A" 413 410 75.10      
18 A" 194 193 5.21      

Unscaled Zero Point Vibrational Energy (zpe) 12931.2 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 12831.6 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 BLYP/6-31G**
ABC
0.60045 0.21569 0.16356

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.942 0.000
C2 0.937 -0.255 0.000
O3 -1.358 0.555 0.000
O4 0.504 -1.404 0.000
H5 -1.333 -0.430 0.000
H6 0.253 1.566 0.887
H7 0.253 1.566 -0.887
H8 2.034 -0.038 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.52081.41202.39931.91301.11331.11332.2577
C21.52082.43441.22732.27672.13822.13821.1180
O31.41202.43442.70270.98612.09842.09843.4435
O42.39931.22732.70272.07853.10933.10932.0510
H51.91302.27670.98612.07852.69932.69933.3894
H61.11332.13822.09843.10932.69931.77322.5553
H71.11332.13822.09843.10932.69931.77322.5553
H82.25771.11803.44352.05103.38942.55532.5553

picture of hydroxy acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.266 C1 C2 H8 116.829
C1 O3 H5 104.419 C2 C1 O3 112.159
C2 C1 H6 107.524 C2 C1 H7 107.524
O3 C1 H6 111.852 O3 C1 H7 111.852
O4 C2 H8 121.905 H6 C1 H7 105.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.038      
2 C 0.253      
3 O -0.505      
4 O -0.371      
5 H 0.302      
6 H 0.106      
7 H 0.106      
8 H 0.070      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.835 1.179 0.000 2.181
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.067 3.718 0.000
y 3.718 -25.715 0.000
z 0.000 0.000 -22.933
Traceless
 xyz
x 0.257 3.718 0.000
y 3.718 -2.214 0.000
z 0.000 0.000 1.958
Polar
3z2-r23.916
x2-y21.647
xy3.718
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.817 0.174 0.000
y 0.174 5.142 0.000
z 0.000 0.000 2.886


<r2> (average value of r2) Å2
<r2> 73.847
(<r2>)1/2 8.593