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

using model chemistry: HF/6-311+G(3df,2p)

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 HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-227.858430
Energy at 298.15K-227.863397
Nuclear repulsion energy120.730756
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 HF/6-311+G(3df,2p)
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' 4125 3748 91.94      
2 A' 3143 2856 89.67      
3 A' 3110 2826 34.72      
4 A' 1995 1812 217.56      
5 A' 1612 1465 10.70      
6 A' 1574 1430 39.52      
7 A' 1517 1379 21.68      
8 A' 1392 1265 61.21      
9 A' 1247 1133 100.53      
10 A' 931 846 46.94      
11 A' 818 743 21.79      
12 A' 306 278 22.36      
13 A" 3157 2869 29.85      
14 A" 1376 1250 0.32      
15 A" 1231 1119 0.19      
16 A" 804 731 0.47      
17 A" 351 319 104.93      
18 A" 186 169 13.04      

Unscaled Zero Point Vibrational Energy (zpe) 14437.7 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 13118.1 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 HF/6-311+G(3df,2p)
ABC
0.64254 0.21781 0.16765

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.920 0.000
C2 0.914 -0.274 0.000
O3 -1.334 0.573 0.000
O4 0.516 -1.386 0.000
H5 -1.409 -0.368 0.000
H6 0.243 1.522 0.874
H7 0.243 1.522 -0.874
H8 1.985 -0.051 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50361.37892.36331.90921.08871.08872.2104
C21.50362.40201.18112.32482.10692.10691.0944
O31.37892.40202.69430.94312.03842.03843.3777
O42.36331.18112.69432.17803.04903.04901.9848
H51.90922.32480.94312.17802.65842.65843.4092
H61.08872.10692.03843.04902.65841.74772.5049
H71.08872.10692.03843.04902.65841.74772.5049
H82.21041.09443.37771.98483.40922.50492.5049

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 122.907 C1 C2 H8 115.699
C1 O3 H5 109.169 C2 C1 O3 112.809
C2 C1 H6 107.656 C2 C1 H7 107.656
O3 C1 H6 110.846 O3 C1 H7 110.846
O4 C2 H8 121.394 H6 C1 H7 106.765
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.324      
2 C 0.563      
3 O -0.802      
4 O -0.759      
5 H 0.281      
6 H 0.134      
7 H 0.134      
8 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.048 1.677 0.000 2.648
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.881 4.233 0.000
y 4.233 -26.875 0.000
z 0.000 0.000 -23.135
Traceless
 xyz
x 1.124 4.233 0.000
y 4.233 -3.367 0.000
z 0.000 0.000 2.243
Polar
3z2-r24.486
x2-y22.994
xy4.233
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.733 0.178 0.000
y 0.178 5.136 0.000
z 0.000 0.000 3.558


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