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

using model chemistry: PBEPBE/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 PBEPBE/STO-3G
 hartrees
Energy at 0K-225.725309
Energy at 298.15K-225.730327
Nuclear repulsion energy117.322250
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/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' 3198 2921 21.80      
2 A' 3150 2877 63.43      
3 A' 3102 2834 8.45      
4 A' 1772 1619 46.92      
5 A' 1665 1522 44.09      
6 A' 1593 1455 2.90      
7 A' 1348 1232 14.46      
8 A' 1305 1192 16.53      
9 A' 1103 1007 10.02      
10 A' 888 812 11.64      
11 A' 773 706 0.21      
12 A' 400 365 22.25      
13 A" 3174 2900 8.50      
14 A" 1208 1104 0.66      
15 A" 1043 953 0.42      
16 A" 738 674 46.13      
17 A" 721 659 0.84      
18 A" 242 221 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 13711.4 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 12526.7 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/STO-3G
ABC
0.53892 0.23170 0.16730

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.002 0.000
C2 0.980 -0.225 0.000
O3 -1.348 0.456 0.000
O4 0.427 -1.370 0.000
H5 -1.054 -0.568 0.000
H6 0.222 1.640 0.902
H7 0.222 1.640 -0.902
H8 2.097 -0.065 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.57051.45412.41001.89131.12661.12662.3528
C21.57052.42591.27192.06342.20602.20601.1279
O31.45412.42592.54651.06592.16282.16283.4840
O42.41001.27192.54651.68403.14883.14882.1195
H51.89132.06341.06591.68402.70512.70513.1911
H61.12662.20602.16283.14882.70511.80322.6901
H71.12662.20602.16283.14882.70511.80322.6901
H82.35281.12793.48402.11953.19112.69012.6901

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 115.565 C1 C2 H8 120.479
C1 O3 H5 96.049 C2 C1 O3 106.590
C2 C1 H6 108.638 C2 C1 H7 108.638
O3 C1 H6 113.265 O3 C1 H7 113.265
O4 C2 H8 123.956 H6 C1 H7 106.315
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 C 0.068      
3 O -0.249      
4 O -0.139      
5 H 0.160      
6 H 0.081      
7 H 0.081      
8 H 0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.121 0.371 0.000 2.154
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.379 2.085 0.000
y 2.085 -22.468 0.000
z 0.000 0.000 -20.940
Traceless
 xyz
x -0.675 2.085 0.000
y 2.085 -0.808 0.000
z 0.000 0.000 1.483
Polar
3z2-r22.966
x2-y20.089
xy2.085
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.801 -0.009 0.000
y -0.009 3.294 0.000
z 0.000 0.000 1.228


<r2> (average value of r2) Å2
<r2> 71.401
(<r2>)1/2 8.450