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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-228.945180
Energy at 298.15K-228.950122
Nuclear repulsion energy120.222326
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' 3689 3502 66.04      
2 A' 3022 2869 82.72      
3 A' 2999 2847 37.41      
4 A' 1856 1762 134.85      
5 A' 1515 1438 19.96      
6 A' 1473 1398 76.51      
7 A' 1413 1342 26.16      
8 A' 1328 1260 43.35      
9 A' 1173 1114 87.46      
10 A' 894 848 44.52      
11 A' 774 735 9.33      
12 A' 313 298 23.21      
13 A" 3037 2883 29.47      
14 A" 1257 1193 3.11      
15 A" 1120 1063 0.08      
16 A" 731 694 0.23      
17 A" 417 396 95.02      
18 A" 198 188 6.77      

Unscaled Zero Point Vibrational Energy (zpe) 13604.0 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 12914.2 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
0.61555 0.22394 0.16935

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 0.934 0.000
C2 0.923 -0.251 0.000
O3 -1.331 0.540 0.000
O4 0.490 -1.380 0.000
H5 -1.311 -0.433 0.000
H6 0.243 1.551 0.880
H7 0.243 1.551 -0.880
H8 2.010 -0.048 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50231.38782.36481.89401.10161.10162.2370
C21.50232.38881.20882.24192.11762.11761.1055
O31.38782.38882.64540.97302.06692.06693.3920
O42.36481.20882.64542.03463.06963.06962.0209
H51.89402.24190.97302.03462.66922.66923.3434
H61.10162.11762.06693.06962.66921.75962.5403
H71.10162.11762.06693.06962.66921.75962.5403
H82.23701.10553.39202.02093.34342.54032.5403

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 121.062 C1 C2 H8 117.331
C1 O3 H5 105.348 C2 C1 O3 111.427
C2 C1 H6 107.832 C2 C1 H7 107.832
O3 C1 H6 111.742 O3 C1 H7 111.742
O4 C2 H8 121.607 H6 C1 H7 105.996
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 -0.105      
2 C 0.210      
3 O -0.633      
4 O -0.396      
5 H 0.425      
6 H 0.177      
7 H 0.177      
8 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.032 1.236 0.000 2.379
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.791 3.927 0.000
y 3.927 -25.612 0.000
z 0.000 0.000 -22.765
Traceless
 xyz
x 0.398 3.927 0.000
y 3.927 -2.335 0.000
z 0.000 0.000 1.937
Polar
3z2-r23.874
x2-y21.821
xy3.927
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.365 0.238 0.000
y 0.238 4.796 0.000
z 0.000 0.000 2.775


<r2> (average value of r2) Å2
<r2> 71.819
(<r2>)1/2 8.475