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

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-229.045603
Energy at 298.15K-229.050505
Nuclear repulsion energy119.453198
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 B3LYP/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' 3695 3550 56.20      
2 A' 2977 2860 74.17      
3 A' 2949 2833 51.44      
4 A' 1816 1745 129.04      
5 A' 1497 1438 18.39      
6 A' 1452 1395 69.03      
7 A' 1403 1348 26.27      
8 A' 1308 1257 46.13      
9 A' 1141 1096 80.71      
10 A' 871 837 48.74      
11 A' 767 737 8.41      
12 A' 299 287 23.88      
13 A" 2988 2871 32.18      
14 A" 1246 1197 3.03      
15 A" 1113 1069 0.07      
16 A" 728 700 0.41      
17 A" 409 393 88.34      
18 A" 193 185 6.41      

Unscaled Zero Point Vibrational Energy (zpe) 13425.5 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 12899.3 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 B3LYP/6-31G**
ABC
0.61163 0.21947 0.16651

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.936 0.000
C2 0.929 -0.255 0.000
O3 -1.344 0.550 0.000
O4 0.500 -1.391 0.000
H5 -1.335 -0.423 0.000
H6 0.249 1.553 0.881
H7 0.249 1.553 -0.881
H8 2.017 -0.041 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51001.39802.37981.90461.10451.10452.2410
C21.51002.41101.21412.26942.12352.12351.1090
O31.39802.41102.67750.97372.07822.07823.4124
O42.37981.21412.67752.07413.08363.08362.0303
H51.90462.26940.97372.07412.68142.68143.3730
H61.10452.12352.07823.08362.68141.76242.5389
H71.10452.12352.07823.08362.68141.76242.5389
H82.24101.10903.41242.03033.37302.53892.5389

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 121.377 C1 C2 H8 116.841
C1 O3 H5 105.444 C2 C1 O3 111.953
C2 C1 H6 107.607 C2 C1 H7 107.607
O3 C1 H6 111.754 O3 C1 H7 111.754
O4 C2 H8 121.782 H6 C1 H7 105.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.026      
2 C 0.267      
3 O -0.540      
4 O -0.399      
5 H 0.321      
6 H 0.119      
7 H 0.119      
8 H 0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.950 1.245 0.000 2.314
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.883 3.886 0.000
y 3.886 -25.806 0.000
z 0.000 0.000 -22.827
Traceless
 xyz
x 0.434 3.886 0.000
y 3.886 -2.451 0.000
z 0.000 0.000 2.017
Polar
3z2-r24.034
x2-y21.923
xy3.886
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.494 0.240 0.000
y 0.240 4.887 0.000
z 0.000 0.000 2.822


<r2> (average value of r2) Å2
<r2> 72.797
(<r2>)1/2 8.532