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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-229.035797
Energy at 298.15K-229.040686
Nuclear repulsion energy119.398241
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' 3632 3488 53.93      
2 A' 2987 2869 80.28      
3 A' 2961 2844 48.90      
4 A' 1819 1747 128.67      
5 A' 1513 1453 17.24      
6 A' 1467 1409 81.02      
7 A' 1411 1355 21.88      
8 A' 1318 1265 46.84      
9 A' 1143 1097 75.81      
10 A' 873 838 48.04      
11 A' 768 737 8.62      
12 A' 301 289 23.40      
13 A" 2996 2877 33.75      
14 A" 1251 1201 3.02      
15 A" 1117 1072 0.04      
16 A" 732 703 0.48      
17 A" 406 390 90.83      
18 A" 188 180 7.51      

Unscaled Zero Point Vibrational Energy (zpe) 13440.7 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 12907.1 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
0.61122 0.21930 0.16639

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 0.937 0.000
C2 0.929 -0.255 0.000
O3 -1.344 0.550 0.000
O4 0.501 -1.391 0.000
H5 -1.334 -0.427 0.000
H6 0.244 1.555 0.882
H7 0.244 1.555 -0.882
H8 2.017 -0.043 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51131.39902.38131.90851.10471.10472.2429
C21.51132.41151.21392.27002.12732.12731.1089
O31.39902.41152.67790.97702.07672.07673.4135
O42.38131.21392.67792.07313.08643.08642.0288
H51.90852.27000.97702.07312.68362.68363.3738
H61.10472.12732.07673.08642.68361.76432.5454
H71.10472.12732.07673.08642.68361.76432.5454
H82.24291.10893.41352.02883.37382.54542.5454

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 121.428 C1 C2 H8 116.913
C1 O3 H5 105.502 C2 C1 O3 111.854
C2 C1 H6 107.811 C2 C1 H7 107.811
O3 C1 H6 111.549 O3 C1 H7 111.549
O4 C2 H8 121.659 H6 C1 H7 105.985
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 -0.068      
2 C 0.222      
3 O -0.619      
4 O -0.389      
5 H 0.410      
6 H 0.159      
7 H 0.159      
8 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.978 1.220 0.000 2.324
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.956 3.940 0.000
y 3.940 -25.820 0.000
z 0.000 0.000 -22.851
Traceless
 xyz
x 0.380 3.940 0.000
y 3.940 -2.417 0.000
z 0.000 0.000 2.037
Polar
3z2-r24.074
x2-y21.864
xy3.940
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.452 0.240 0.000
y 0.240 4.851 0.000
z 0.000 0.000 2.782


<r2> (average value of r2) Å2
<r2> 72.867
(<r2>)1/2 8.536