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

using model chemistry: PBEPBE/cc-pVTZ

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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-228.873464
Energy at 298.15K-228.878410
Nuclear repulsion energy119.270497
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 PBEPBE/cc-pVTZ
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' 3531 3506 57.26      
2 A' 2889 2869 60.83      
3 A' 2836 2816 79.19      
4 A' 1733 1721 137.65      
5 A' 1422 1412 34.33      
6 A' 1389 1380 46.14      
7 A' 1336 1327 25.21      
8 A' 1260 1251 37.60      
9 A' 1103 1096 80.17      
10 A' 851 845 50.95      
11 A' 748 743 6.06      
12 A' 279 277 24.79      
13 A" 2899 2879 19.27      
14 A" 1199 1191 3.24      
15 A" 1056 1048 0.23      
16 A" 683 678 0.01      
17 A" 455 452 70.65      
18 A" 241 239 1.12      

Unscaled Zero Point Vibrational Energy (zpe) 12953.6 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 12864.2 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 PBEPBE/cc-pVTZ
ABC
0.60982 0.21908 0.16619

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.932 0.000
C2 0.928 -0.252 0.000
O3 -1.348 0.551 0.000
O4 0.502 -1.392 0.000
H5 -1.328 -0.430 0.000
H6 0.253 1.554 0.885
H7 0.253 1.554 -0.885
H8 2.023 -0.032 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50411.40092.37811.90221.11051.11052.2408
C21.50412.41361.21772.26252.12062.12061.1164
O31.40092.41362.68340.98182.08622.08623.4209
O42.37811.21772.68342.06713.08613.08612.0401
H51.90222.26250.98182.06712.68672.68673.3737
H61.11052.12062.08623.08612.68671.76922.5355
H71.11052.12062.08623.08612.68671.76922.5355
H82.24081.11643.42092.04013.37372.53552.5355

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 121.431 C1 C2 H8 116.768
C1 O3 H5 104.571 C2 C1 O3 112.320
C2 C1 H6 107.447 C2 C1 H7 107.447
O3 C1 H6 111.823 O3 C1 H7 111.823
O4 C2 H8 121.801 H6 C1 H7 105.612
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.078      
2 C 0.095      
3 O -0.310      
4 O -0.238      
5 H 0.200      
6 H 0.059      
7 H 0.059      
8 H 0.057      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.767 1.361 0.000 2.230
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.296 3.633 0.000
y 3.633 -26.007 0.000
z 0.000 0.000 -23.277
Traceless
 xyz
x 0.346 3.633 0.000
y 3.633 -2.221 0.000
z 0.000 0.000 1.875
Polar
3z2-r23.750
x2-y21.711
xy3.633
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.441 0.074 0.000
y 0.074 5.735 0.000
z 0.000 0.000 3.554


<r2> (average value of r2) Å2
<r2> 73.137
(<r2>)1/2 8.552