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

using model chemistry: PBEPBE/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-228.796152
Energy at 298.15K-228.801120
Nuclear repulsion energy119.193159
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3457 3437 71.49      
2 A' 2878 2861 74.95      
3 A' 2841 2824 69.98      
4 A' 1739 1729 135.41      
5 A' 1422 1414 75.00      
6 A' 1382 1374 24.33      
7 A' 1322 1315 24.76      
8 A' 1259 1252 25.39      
9 A' 1116 1109 78.53      
10 A' 862 857 45.76      
11 A' 752 748 5.13      
12 A' 291 290 25.91      
13 A" 2885 2868 31.03      
14 A" 1185 1179 3.63      
15 A" 1049 1043 0.13      
16 A" 682 678 0.04      
17 A" 475 472 61.01      
18 A" 236 234 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 12916.4 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 12841.4 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 PBEPBE/cc-pVDZ
ABC
0.60199 0.22158 0.16709

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.938 0.000
C2 0.929 -0.251 0.000
O3 -1.341 0.545 0.000
O4 0.484 -1.391 0.000
H5 -1.282 -0.444 0.000
H6 0.264 1.568 0.890
H7 0.264 1.568 -0.890
H8 2.037 -0.043 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50911.39782.37901.88501.12181.12182.2606
C21.50912.40591.22422.22002.13162.13161.1268
O31.39782.40592.66050.98992.10122.10123.4287
O42.37901.22422.66052.00433.09793.09792.0566
H51.88502.22000.98992.00432.68852.68853.3431
H61.12182.13162.10123.09792.68851.78022.5555
H71.12182.13162.10123.09792.68851.78022.5555
H82.26061.12683.42872.05663.34312.55552.5555

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 120.647 C1 C2 H8 117.362
C1 O3 H5 102.934 C2 C1 O3 111.662
C2 C1 H6 107.318 C2 C1 H7 107.318
O3 C1 H6 112.551 O3 C1 H7 112.551
O4 C2 H8 121.991 H6 C1 H7 105.018
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.092      
2 C 0.084      
3 O -0.231      
4 O -0.181      
5 H 0.135      
6 H 0.046      
7 H 0.046      
8 H 0.009      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.751 1.170 0.000 2.106
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.059 3.448 0.000
y 3.448 -25.481 0.000
z 0.000 0.000 -22.953
Traceless
 xyz
x 0.158 3.448 0.000
y 3.448 -1.975 0.000
z 0.000 0.000 1.817
Polar
3z2-r23.634
x2-y21.421
xy3.448
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.966 0.158 0.000
y 0.158 5.250 0.000
z 0.000 0.000 3.009


<r2> (average value of r2) Å2
<r2> 72.684
(<r2>)1/2 8.525