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

using model chemistry: B3PW91/6-31G

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 B3PW91/6-31G
 hartrees
Energy at 0K-228.871171
Energy at 298.15K-228.876059
Nuclear repulsion energy118.412688
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 B3PW91/6-31G
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' 3570 3419 30.29      
2 A' 3045 2916 90.31      
3 A' 3015 2888 6.19      
4 A' 1729 1656 94.85      
5 A' 1518 1454 17.25      
6 A' 1438 1377 49.79      
7 A' 1416 1356 32.90      
8 A' 1303 1248 68.14      
9 A' 1102 1055 58.79      
10 A' 890 852 61.80      
11 A' 759 727 9.28      
12 A' 294 281 25.51      
13 A" 3047 2918 22.65      
14 A" 1242 1189 6.74      
15 A" 1118 1071 0.05      
16 A" 760 728 0.14      
17 A" 396 380 138.83      
18 A" 189 181 16.80      

Unscaled Zero Point Vibrational Energy (zpe) 13415.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 12847.5 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 B3PW91/6-31G
ABC
0.59251 0.21831 0.16442

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.942 0.000
C2 0.943 -0.228 0.000
O3 -1.363 0.523 0.000
O4 0.523 -1.392 0.000
H5 -1.381 -0.460 0.000
H6 0.211 1.566 0.883
H7 0.211 1.566 -0.883
H8 2.021 -0.007 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50201.42592.39141.96771.10131.10132.2325
C21.50202.42481.23742.33522.12832.12831.1006
O31.42592.42482.68790.98342.08442.08443.4252
O42.39141.23742.68792.11993.10213.10212.0398
H51.96772.33520.98342.11992.72362.72363.4319
H61.10132.12832.08443.10212.72361.76512.5548
H71.10132.12832.08443.10212.72361.76512.5548
H82.23251.10063.42522.03983.43192.55482.5548

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 121.314 C1 C2 H8 117.308
C1 O3 H5 108.113 C2 C1 O3 111.802
C2 C1 H6 108.703 C2 C1 H7 108.703
O3 C1 H6 110.474 O3 C1 H7 110.474
O4 C2 H8 121.378 H6 C1 H7 106.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.109      
2 C 0.177      
3 O -0.624      
4 O -0.394      
5 H 0.392      
6 H 0.198      
7 H 0.198      
8 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.363 1.449 0.000 2.772
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.579 4.824 0.000
y 4.824 -26.405 0.000
z 0.000 0.000 -22.960
Traceless
 xyz
x 0.104 4.824 0.000
y 4.824 -2.635 0.000
z 0.000 0.000 2.531
Polar
3z2-r25.063
x2-y21.826
xy4.824
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.299 0.314 0.000
y 0.314 4.904 0.000
z 0.000 0.000 2.525


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000