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

using model chemistry: BLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-225.882774
Energy at 298.15K-225.887696
Nuclear repulsion energy116.343238
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/STO-3G
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' 3146 2911 24.02      
2 A' 3103 2871 66.23      
3 A' 3068 2838 10.77      
4 A' 1736 1606 47.18      
5 A' 1638 1516 38.43      
6 A' 1589 1470 2.81      
7 A' 1339 1239 14.92      
8 A' 1296 1199 14.07      
9 A' 1060 981 8.31      
10 A' 856 792 11.32      
11 A' 753 696 0.38      
12 A' 378 350 22.25      
13 A" 3142 2907 11.54      
14 A" 1197 1107 0.49      
15 A" 1034 957 0.64      
16 A" 720 666 7.00      
17 A" 691 639 37.97      
18 A" 227 210 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 13486.3 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 12477.5 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 BLYP/STO-3G
ABC
0.53200 0.22663 0.16403

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.011 0.000
C2 0.990 -0.229 0.000
O3 -1.364 0.460 0.000
O4 0.439 -1.380 0.000
H5 -1.078 -0.571 0.000
H6 0.215 1.650 0.905
H7 0.215 1.650 -0.905
H8 2.109 -0.065 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.58681.47092.43131.91451.12831.12832.3680
C21.58682.45271.27632.09622.22482.22481.1310
O31.47092.45272.57641.07012.17382.17383.5126
O42.43131.27632.57641.71953.17013.17012.1256
H51.91452.09621.07011.71952.72422.72423.2271
H61.12832.22482.17383.17012.72421.81022.7111
H71.12832.22482.17383.17012.72421.81022.7111
H82.36801.13103.51262.12563.22712.71112.7111

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 115.820 C1 C2 H8 120.287
C1 O3 H5 96.503 C2 C1 O3 106.610
C2 C1 H6 108.883 C2 C1 H7 108.883
O3 C1 H6 112.849 O3 C1 H7 112.849
O4 C2 H8 123.893 H6 C1 H7 106.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.073      
2 C 0.079      
3 O -0.243      
4 O -0.142      
5 H 0.153      
6 H 0.073      
7 H 0.073      
8 H 0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.079 0.361 0.000 2.110
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.416 2.065 0.000
y 2.065 -22.549 0.000
z 0.000 0.000 -20.993
Traceless
 xyz
x -0.645 2.065 0.000
y 2.065 -0.845 0.000
z 0.000 0.000 1.490
Polar
3z2-r22.979
x2-y20.134
xy2.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.828 0.044 0.000
y 0.044 3.309 0.000
z 0.000 0.000 1.254


<r2> (average value of r2) Å2
<r2> 72.534
(<r2>)1/2 8.517