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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-228.775792
Energy at 298.15K-228.780681
HF Energy-228.775792
Nuclear repulsion energy119.047868
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 PBEPBEultrafine/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' 3458 3401 54.83      
2 A' 2900 2853 89.20      
3 A' 2876 2829 46.89      
4 A' 1751 1722 119.97      
5 A' 1461 1437 38.67      
6 A' 1424 1400 72.14      
7 A' 1358 1335 23.86      
8 A' 1277 1256 33.38      
9 A' 1119 1100 75.60      
10 A' 859 844 46.20      
11 A' 753 740 4.71      
12 A' 298 293 23.94      
13 A" 2905 2857 30.59      
14 A" 1201 1181 4.68      
15 A" 1067 1049 0.11      
16 A" 691 679 0.14      
17 A" 438 431 78.38      
18 A" 205 202 4.66      

Unscaled Zero Point Vibrational Energy (zpe) 13020.1 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 12805.3 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 PBEPBEultrafine/6-31G*
ABC
0.60259 0.22018 0.16631

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.940 0.000
C2 0.932 -0.251 0.000
O3 -1.344 0.546 0.000
O4 0.491 -1.394 0.000
H5 -1.301 -0.442 0.000
H6 0.252 1.567 0.887
H7 0.252 1.567 -0.887
H8 2.031 -0.043 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51251.40042.38521.89881.11511.11512.2567
C21.51252.41121.22522.24152.13402.13401.1185
O31.40042.41122.66980.98932.09202.09203.4258
O42.38521.22522.66982.02883.10013.10012.0487
H51.89882.24150.98932.02882.69042.69043.3562
H61.11512.13402.09203.10012.69041.77452.5582
H71.11512.13402.09203.10012.69041.77452.5582
H82.25671.11853.42582.04873.35622.55822.5582

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 120.847 C1 C2 H8 117.336
C1 O3 H5 103.900 C2 C1 O3 111.681
C2 C1 H6 107.655 C2 C1 H7 107.655
O3 C1 H6 112.039 O3 C1 H7 112.039
O4 C2 H8 121.817 H6 C1 H7 105.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.118      
2 C 0.184      
3 O -0.582      
4 O -0.358      
5 H 0.398      
6 H 0.172      
7 H 0.172      
8 H 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.900 1.171 0.000 2.232
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.020 3.734 -0.012
y 3.734 -25.534 -0.000
z -0.012 -0.000 -22.948
Traceless
 xyz
x 0.221 3.734 -0.012
y 3.734 -2.050 -0.000
z -0.012 -0.000 1.829
Polar
3z2-r23.658
x2-y21.514
xy3.734
xz-0.012
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.768 0.153 -0.002
y 0.153 5.126 -0.001
z -0.002 -0.001 2.864


<r2> (average value of r2) Å2
<r2> 72.915
(<r2>)1/2 8.539