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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-228.947866
Energy at 298.15K-228.952788
Nuclear repulsion energy119.777114
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' 3653 3495 61.48      
2 A' 2997 2867 87.66      
3 A' 2974 2845 40.36      
4 A' 1832 1753 132.45      
5 A' 1508 1443 20.82      
6 A' 1467 1403 77.32      
7 A' 1408 1347 25.09      
8 A' 1320 1263 44.85      
9 A' 1160 1109 83.64      
10 A' 884 846 46.95      
11 A' 772 739 8.40      
12 A' 301 288 24.44      
13 A" 3009 2879 31.01      
14 A" 1251 1197 3.44      
15 A" 1114 1066 0.07      
16 A" 728 696 0.19      
17 A" 421 403 94.26      
18 A" 198 189 6.39      

Unscaled Zero Point Vibrational Energy (zpe) 13497.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 12913.3 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
0.61307 0.22156 0.16782

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 0.935 0.000
C2 0.926 -0.253 0.000
O3 -1.337 0.546 0.000
O4 0.494 -1.386 0.000
H5 -1.320 -0.430 0.000
H6 0.245 1.554 0.882
H7 0.245 1.554 -0.882
H8 2.015 -0.046 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50661.39262.37351.89931.10491.10492.2412
C21.50662.39991.21252.25342.12342.12341.1087
O31.39262.39992.66200.97592.07302.07303.4040
O42.37351.21252.66202.05133.08013.08012.0272
H51.89932.25340.97592.05132.67682.67683.3577
H61.10492.12342.07303.08012.67681.76332.5440
H71.10492.12342.07303.08012.67681.76332.5440
H82.24121.10873.40402.02723.35772.54402.5440

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 121.216 C1 C2 H8 117.146
C1 O3 H5 105.267 C2 C1 O3 111.686
C2 C1 H6 107.811 C2 C1 H7 107.811
O3 C1 H6 111.686 O3 C1 H7 111.686
O4 C2 H8 121.637 H6 C1 H7 105.875
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 -0.120      
2 C 0.206      
3 O -0.629      
4 O -0.395      
5 H 0.423      
6 H 0.182      
7 H 0.182      
8 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.015 1.247 0.000 2.369
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.811 3.962 0.000
y 3.962 -25.661 0.000
z 0.000 0.000 -22.794
Traceless
 xyz
x 0.416 3.962 0.000
y 3.962 -2.359 0.000
z 0.000 0.000 1.943
Polar
3z2-r23.885
x2-y21.850
xy3.962
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.437 0.230 0.000
y 0.230 4.857 0.000
z 0.000 0.000 2.795


<r2> (average value of r2) Å2
<r2> 72.332
(<r2>)1/2 8.505