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

using model chemistry: BLYP/3-21G*

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 BLYP/3-21G*
 hartrees
Energy at 0K-227.700830
Energy at 298.15K-227.705774
Nuclear repulsion energy117.210072
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 BLYP/3-21G*
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' 3127 3107 24.72      
2 A' 2894 2875 96.19      
3 A' 2870 2851 30.87      
4 A' 1630 1619 53.51      
5 A' 1501 1492 13.43      
6 A' 1440 1431 120.39      
7 A' 1366 1357 12.94      
8 A' 1268 1259 38.50      
9 A' 1008 1001 37.21      
10 A' 802 797 46.03      
11 A' 737 733 2.63      
12 A' 298 297 24.41      
13 A" 2882 2863 38.61      
14 A" 1195 1187 10.59      
15 A" 1077 1070 0.01      
16 A" 743 738 0.05      
17 A" 485 482 77.92      
18 A" 219 218 4.09      

Unscaled Zero Point Vibrational Energy (zpe) 12770.5 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 12687.5 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 BLYP/3-21G*
ABC
0.56939 0.21764 0.16231

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.965 0.000
C2 0.955 -0.231 0.000
O3 -1.379 0.512 0.000
O4 0.508 -1.397 0.000
H5 -1.278 -0.505 0.000
H6 0.240 1.587 0.891
H7 0.240 1.587 -0.891
H8 2.040 0.003 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.53051.45142.41641.94831.11271.11272.2557
C21.53052.44901.24892.24972.14672.14671.1106
O31.45142.44902.68431.02212.13802.13803.4568
O42.41641.24892.68431.99663.12563.12562.0759
H51.94832.24971.02211.99662.73422.73423.3572
H61.11272.14672.13803.12562.73421.78222.5576
H71.11272.14672.13803.12562.73421.78222.5576
H82.25571.11063.45682.07593.35722.55762.5576

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 120.448 C1 C2 H8 116.417
C1 O3 H5 102.542 C2 C1 O3 110.400
C2 C1 H6 107.566 C2 C1 H7 107.566
O3 C1 H6 112.310 O3 C1 H7 112.310
O4 C2 H8 123.135 H6 C1 H7 106.422
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.185      
2 C 0.190      
3 O -0.513      
4 O -0.373      
5 H 0.318      
6 H 0.198      
7 H 0.198      
8 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.158 0.989 0.000 2.374
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.630 3.826 0.000
y 3.826 -25.532 0.000
z 0.000 0.000 -22.984
Traceless
 xyz
x -0.372 3.826 0.000
y 3.826 -1.725 0.000
z 0.000 0.000 2.097
Polar
3z2-r24.194
x2-y20.902
xy3.826
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.440 0.225 0.000
y 0.225 4.812 0.000
z 0.000 0.000 2.387


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000