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

using model chemistry: BLYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-228.996589
Energy at 298.15K-229.001473
Nuclear repulsion energy118.647867
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/6-31G(2df,p)
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' 3521 3502 48.27      
2 A' 2872 2857 61.36      
3 A' 2824 2809 80.27      
4 A' 1731 1721 117.06      
5 A' 1442 1434 32.66      
6 A' 1406 1398 58.32      
7 A' 1355 1347 22.10      
8 A' 1266 1259 34.40      
9 A' 1085 1079 66.82      
10 A' 831 826 47.12      
11 A' 744 739 5.36      
12 A' 287 285 22.58      
13 A" 2875 2859 30.31      
14 A" 1200 1194 2.57      
15 A" 1069 1063 0.15      
16 A" 694 690 0.31      
17 A" 425 423 63.34      
18 A" 217 216 2.39      

Unscaled Zero Point Vibrational Energy (zpe) 12921.4 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 12850.3 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/6-31G(2df,p)
ABC
0.60457 0.21613 0.16412

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.940 0.000
C2 0.934 -0.259 0.000
O3 -1.355 0.557 0.000
O4 0.504 -1.401 0.000
H5 -1.334 -0.425 0.000
H6 0.254 1.564 0.886
H7 0.254 1.564 -0.886
H8 2.030 -0.038 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.52011.40842.39441.90841.11301.11302.2534
C21.52012.43061.22032.27412.13762.13761.1181
O31.40842.43062.69970.98212.09512.09513.4374
O42.39441.22032.69972.08053.10403.10402.0466
H51.90842.27410.98212.08052.69462.69463.3862
H61.11302.13762.09513.10402.69461.77252.5502
H71.11302.13762.09513.10402.69461.77252.5502
H82.25341.11813.43742.04663.38622.55022.5502

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 121.415 C1 C2 H8 116.508
C1 O3 H5 104.529 C2 C1 O3 112.138
C2 C1 H6 107.545 C2 C1 H7 107.545
O3 C1 H6 111.851 O3 C1 H7 111.851
O4 C2 H8 122.077 H6 C1 H7 105.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.118      
2 C 0.126      
3 O -0.363      
4 O -0.212      
5 H 0.273      
6 H 0.108      
7 H 0.108      
8 H 0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.712 1.180 0.000 2.079
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.933 3.439 0.000
y 3.439 -25.612 0.000
z 0.000 0.000 -22.812
Traceless
 xyz
x 0.279 3.439 0.000
y 3.439 -2.240 0.000
z 0.000 0.000 1.961
Polar
3z2-r23.921
x2-y21.679
xy3.439
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.996 0.099 0.000
y 0.099 5.273 0.000
z 0.000 0.000 3.207


<r2> (average value of r2) Å2
<r2> 73.581
(<r2>)1/2 8.578