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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-228.973020
Energy at 298.15K-228.977844
HF Energy-228.973020
Nuclear repulsion energy118.324214
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' 3444 3416 43.27      
2 A' 2888 2864 74.53      
3 A' 2854 2830 73.08      
4 A' 1729 1715 116.27      
5 A' 1470 1458 23.33      
6 A' 1424 1412 80.83      
7 A' 1366 1355 20.91      
8 A' 1275 1265 37.75      
9 A' 1087 1078 66.87      
10 A' 836 829 49.10      
11 A' 743 737 5.03      
12 A' 291 288 22.67      
13 A" 2889 2866 37.34      
14 A" 1205 1196 3.97      
15 A" 1073 1064 0.07      
16 A" 700 694 0.46      
17 A" 412 408 77.43      
18 A" 190 188 6.03      

Unscaled Zero Point Vibrational Energy (zpe) 12936.2 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 12831.4 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
0.60012 0.21551 0.16345

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 -0.938 0.000
C2 -0.939 0.281 0.000
O3 1.369 -0.599 0.000
O4 -0.520 1.425 0.000
H5 1.390 0.380 0.000
H6 -0.254 -1.553 0.889
H7 -0.254 -1.553 -0.889
H8 -2.037 0.056 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.53841.41022.41961.91491.11011.11012.2665
C21.53842.46971.21852.33052.14952.14951.1207
O31.41022.46972.76870.97882.08192.08193.4681
O42.41961.21852.76872.17723.11903.11902.0432
H51.91492.33050.97882.17722.68812.68813.4416
H61.11012.14952.08193.11902.68811.77722.5604
H71.11012.14952.08193.11902.68811.77722.5604
H82.26651.12073.46812.04323.44162.56042.5604

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 122.295 C1 C2 H8 116.044
C1 O3 H5 105.119 C2 C1 O3 113.702
C2 C1 H6 107.394 C2 C1 H7 107.394
O3 C1 H6 110.825 O3 C1 H7 110.825
O4 C2 H8 121.661 H6 C1 H7 106.349
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 -0.053      
2 C 0.210      
3 O -0.578      
4 O -0.360      
5 H 0.384      
6 H 0.144      
7 H 0.144      
8 H 0.108      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.861 -1.155 0.000 2.191
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.133 3.773 0.000
y 3.773 -25.729 0.000
z 0.000 0.000 -22.955
Traceless
 xyz
x 0.209 3.773 0.000
y 3.773 -2.184 0.000
z 0.000 0.000 1.976
Polar
3z2-r23.951
x2-y21.595
xy3.773
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.778 0.174 0.000
y 0.174 5.109 0.000
z 0.000 0.000 2.847


<r2> (average value of r2) Å2
<r2> 73.917
(<r2>)1/2 8.598