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

using model chemistry: B1B95/6-31G

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 B1B95/6-31G
 hartrees
Energy at 0K-228.867334
Energy at 298.15K-228.872246
Nuclear repulsion energy118.862330
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 B1B95/6-31G
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' 3605 3438 34.47      
2 A' 3071 2929 81.73      
3 A' 3039 2898 6.25      
4 A' 1751 1670 96.68      
5 A' 1526 1455 16.33      
6 A' 1446 1379 49.68      
7 A' 1424 1358 31.62      
8 A' 1311 1251 68.31      
9 A' 1114 1062 61.14      
10 A' 901 859 58.87      
11 A' 762 727 10.29      
12 A' 307 293 23.93      
13 A" 3073 2931 21.03      
14 A" 1247 1189 6.34      
15 A" 1126 1074 0.06      
16 A" 766 730 0.12      
17 A" 395 377 141.43      
18 A" 188 179 17.89      

Unscaled Zero Point Vibrational Energy (zpe) 13525.1 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 12898.9 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 B1B95/6-31G
ABC
0.59427 0.22094 0.16602

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.941 0.000
C2 0.940 -0.225 0.000
O3 -1.356 0.516 0.000
O4 0.518 -1.384 0.000
H5 -1.373 -0.464 0.000
H6 0.209 1.563 0.881
H7 0.209 1.563 -0.881
H8 2.016 -0.009 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.49801.42122.38211.96501.09801.09802.2288
C21.49802.41301.23342.32602.12302.12301.0973
O31.42122.41302.66880.98032.07852.07853.4129
O42.38211.23342.66882.10333.09113.09112.0333
H51.96502.32600.98032.10332.71802.71803.4200
H61.09802.12302.07853.09112.71801.76132.5521
H71.09802.12302.07853.09112.71801.76132.5521
H82.22881.09733.41292.03333.42002.55212.5521

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 121.105 C1 C2 H8 117.524
C1 O3 H5 108.418 C2 C1 O3 111.471
C2 C1 H6 108.752 C2 C1 H7 108.752
O3 C1 H6 110.533 O3 C1 H7 110.533
O4 C2 H8 121.372 H6 C1 H7 106.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.096      
2 C 0.178      
3 O -0.629      
4 O -0.394      
5 H 0.394      
6 H 0.194      
7 H 0.194      
8 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.398 1.443 0.000 2.798
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.569 4.797 0.000
y 4.797 -26.367 0.000
z 0.000 0.000 -22.932
Traceless
 xyz
x 0.080 4.797 0.000
y 4.797 -2.616 0.000
z 0.000 0.000 2.536
Polar
3z2-r25.072
x2-y21.797
xy4.797
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.214 0.331 0.000
y 0.331 4.834 0.000
z 0.000 0.000 2.501


<r2> (average value of r2) Å2
<r2> 73.303
(<r2>)1/2 8.562