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

using model chemistry: mPW1PW91/6-31+G**

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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-228.998396
Energy at 298.15K-229.003318
Nuclear repulsion energy119.790716
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 mPW1PW91/6-31+G**
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' 3767 3586 72.68      
2 A' 3022 2876 75.97      
3 A' 2996 2851 39.07      
4 A' 1834 1746 165.85      
5 A' 1482 1410 21.36      
6 A' 1442 1373 40.73      
7 A' 1398 1330 31.42      
8 A' 1298 1235 40.99      
9 A' 1160 1104 99.16      
10 A' 888 845 50.57      
11 A' 770 733 9.41      
12 A' 288 274 24.78      
13 A" 3045 2898 16.12      
14 A" 1254 1194 3.36      
15 A" 1110 1057 0.33      
16 A" 722 688 0.00      
17 A" 412 393 110.38      
18 A" 208 198 6.65      

Unscaled Zero Point Vibrational Energy (zpe) 13547.4 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 12894.4 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 mPW1PW91/6-31+G**
ABC
0.61756 0.22005 0.16728

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.930 0.000
C2 0.926 -0.253 0.000
O3 -1.340 0.551 0.000
O4 0.504 -1.388 0.000
H5 -1.356 -0.418 0.000
H6 0.239 1.545 0.882
H7 0.239 1.545 -0.882
H8 2.011 -0.040 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50161.39252.37161.91211.10141.10142.2326
C21.50162.40421.21092.28802.11652.11651.1060
O31.39252.40422.67590.96952.06392.06393.4030
O42.37161.21092.67592.09783.07373.07372.0219
H51.91212.28800.96952.09782.67912.67913.3886
H61.10142.11652.06393.07372.67911.76312.5353
H71.10142.11652.06393.07372.67911.76312.5353
H82.23261.10603.40302.02193.38862.53532.5353

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 121.561 C1 C2 H8 116.971
C1 O3 H5 106.723 C2 C1 O3 112.293
C2 C1 H6 107.810 C2 C1 H7 107.810
O3 C1 H6 111.162 O3 C1 H7 111.162
O4 C2 H8 121.469 H6 C1 H7 106.335
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 C 0.197      
3 O -0.509      
4 O -0.387      
5 H 0.371      
6 H 0.179      
7 H 0.179      
8 H 0.144      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.160 1.536 0.000 2.651
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.456 4.299 0.000
y 4.299 -26.536 0.000
z 0.000 0.000 -23.363
Traceless
 xyz
x 0.493 4.299 0.000
y 4.299 -2.627 0.000
z 0.000 0.000 2.134
Polar
3z2-r24.267
x2-y22.080
xy4.299
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.957 0.156 0.000
y 0.156 5.522 0.000
z 0.000 0.000 3.455


<r2> (average value of r2) Å2
<r2> 72.931
(<r2>)1/2 8.540