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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-227.762881
Energy at 298.15K-227.767898
Nuclear repulsion energy118.312385
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 B3LYP/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' 3338 3221 27.30      
2 A' 3002 2896 87.40      
3 A' 2978 2873 16.51      
4 A' 1715 1655 60.85      
5 A' 1544 1490 11.24      
6 A' 1474 1422 119.50      
7 A' 1415 1365 12.05      
8 A' 1310 1264 49.17      
9 A' 1060 1023 41.43      
10 A' 839 810 47.05      
11 A' 762 735 6.42      
12 A' 306 296 25.38      
13 A" 2995 2890 31.15      
14 A" 1242 1198 8.60      
15 A" 1120 1080 0.01      
16 A" 778 751 0.09      
17 A" 480 463 98.39      
18 A" 217 210 5.26      

Unscaled Zero Point Vibrational Energy (zpe) 13286.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12820.6 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 B3LYP/3-21G
ABC
0.58050 0.22152 0.16530

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.958 0.000
C2 0.945 -0.229 0.000
O3 -1.365 0.506 0.000
O4 0.507 -1.384 0.000
H5 -1.288 -0.497 0.000
H6 0.230 1.574 0.885
H7 0.230 1.574 -0.885
H8 2.022 0.001 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51781.43782.39581.94281.10291.10292.2367
C21.51782.42431.23492.24932.13282.13281.1006
O31.43782.42432.65921.00512.11402.11403.4239
O42.39581.23492.65922.00183.10003.10002.0525
H51.94282.24931.00512.00182.71602.71603.3468
H61.10292.13282.11403.10002.71601.77032.5435
H71.10292.13282.11403.10002.71601.77032.5435
H82.23671.10063.42392.05253.34682.54352.5435

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 120.654 C1 C2 H8 116.447
C1 O3 H5 103.955 C2 C1 O3 110.190
C2 C1 H6 107.899 C2 C1 H7 107.899
O3 C1 H6 111.950 O3 C1 H7 111.950
O4 C2 H8 122.899 H6 C1 H7 106.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.193      
2 C 0.208      
3 O -0.560      
4 O -0.409      
5 H 0.344      
6 H 0.213      
7 H 0.213      
8 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.301 1.088 0.000 2.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.560 4.067 0.000
y 4.067 -25.677 0.000
z 0.000 0.000 -22.880
Traceless
 xyz
x -0.282 4.067 0.000
y 4.067 -1.957 0.000
z 0.000 0.000 2.238
Polar
3z2-r24.477
x2-y21.117
xy4.067
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.097 0.307 0.000
y 0.307 4.553 0.000
z 0.000 0.000 2.318


<r2> (average value of r2) Å2
<r2> 73.345
(<r2>)1/2 8.564