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

using model chemistry: B3PW91/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 B3PW91/STO-3G
 hartrees
Energy at 0K-225.912013
Energy at 298.15K-225.916997
Nuclear repulsion energy117.821529
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/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' 3471 3071 48.60      
2 A' 3270 2894 18.62      
3 A' 3236 2864 5.73      
4 A' 1832 1621 22.16      
5 A' 1707 1511 65.74      
6 A' 1652 1462 2.11      
7 A' 1409 1247 15.65      
8 A' 1370 1212 23.49      
9 A' 1151 1018 9.84      
10 A' 929 823 10.31      
11 A' 785 694 2.88      
12 A' 351 310 25.58      
13 A" 3317 2935 5.27      
14 A" 1260 1115 0.17      
15 A" 1095 969 0.70      
16 A" 771 682 3.37      
17 A" 660 584 54.87      
18 A" 224 199 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 14244.1 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 12606.0 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/STO-3G
ABC
0.55077 0.23010 0.16751

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.993 0.000
C2 0.972 -0.229 0.000
O3 -1.349 0.464 0.000
O4 0.445 -1.368 0.000
H5 -1.099 -0.546 0.000
H6 0.212 1.625 0.896
H7 0.212 1.625 -0.896
H8 2.079 -0.053 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.56171.44952.40331.89191.11651.11652.3272
C21.56172.42261.25522.09542.19492.19491.1206
O31.44952.42262.56471.04092.14202.14203.4668
O42.40331.25522.56471.74953.13323.13322.0971
H51.89192.09541.04091.74952.69012.69013.2160
H61.11652.19492.14203.13322.69011.79212.6653
H71.11652.19492.14203.13322.69011.79212.6653
H82.32721.12063.46682.09713.21602.66532.6653

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 116.698 C1 C2 H8 119.459
C1 O3 H5 97.515 C2 C1 O3 107.069
C2 C1 H6 108.947 C2 C1 H7 108.947
O3 C1 H6 112.531 O3 C1 H7 112.531
O4 C2 H8 123.843 H6 C1 H7 106.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 C 0.084      
3 O -0.266      
4 O -0.162      
5 H 0.177      
6 H 0.081      
7 H 0.081      
8 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.102 0.429 0.000 2.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.472 2.303 0.000
y 2.303 -22.736 0.000
z 0.000 0.000 -20.901
Traceless
 xyz
x -0.654 2.303 0.000
y 2.303 -1.049 0.000
z 0.000 0.000 1.703
Polar
3z2-r23.405
x2-y20.263
xy2.303
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.486 0.206 0.000
y 0.206 3.019 0.000
z 0.000 0.000 1.199


<r2> (average value of r2) Å2
<r2> 71.327
(<r2>)1/2 8.446