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

using model chemistry: HF/SDD

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 HF/SDD
 hartrees
Energy at 0K-227.705051
Energy at 298.15K-227.709933
Nuclear repulsion energy118.673167
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 HF/SDD
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' 4026 3625 70.62      
2 A' 3272 2946 87.89      
3 A' 3235 2913 21.10      
4 A' 1883 1696 159.23      
5 A' 1648 1483 14.78      
6 A' 1553 1399 42.96      
7 A' 1518 1367 10.50      
8 A' 1369 1233 85.38      
9 A' 1202 1082 81.70      
10 A' 943 849 53.84      
11 A' 797 718 24.86      
12 A' 300 270 25.37      
13 A" 3279 2953 36.30      
14 A" 1359 1224 3.42      
15 A" 1227 1105 0.21      
16 A" 840 757 0.05      
17 A" 339 306 196.69      
18 A" 157 142 37.83      

Unscaled Zero Point Vibrational Energy (zpe) 14474.5 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 13032.8 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 HF/SDD
ABC
0.60990 0.21331 0.16274

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.936 0.000
C2 0.941 -0.244 0.000
O3 -1.365 0.546 0.000
O4 0.545 -1.397 0.000
H5 -1.487 -0.402 0.000
H6 0.202 1.542 0.875
H7 0.202 1.542 -0.875
H8 2.002 -0.018 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50931.42002.39562.00041.08371.08372.2177
C21.50932.43811.21932.43352.12212.12211.0848
O31.42002.43812.72460.95582.05312.05313.4144
O42.39561.21932.72462.26233.08593.08592.0066
H52.00042.43350.95582.26232.72032.72033.5104
H61.08372.12212.05313.08592.72031.75002.5378
H71.08372.12212.05313.08592.72031.75002.5378
H82.21771.08483.41442.00663.51042.53782.5378

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 122.438 C1 C2 H8 116.548
C1 O3 H5 113.254 C2 C1 O3 112.643
C2 C1 H6 108.740 C2 C1 H7 108.740
O3 C1 H6 109.448 O3 C1 H7 109.448
O4 C2 H8 121.014 H6 C1 H7 107.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.147      
2 C 0.144      
3 O -0.629      
4 O -0.367      
5 H 0.425      
6 H 0.201      
7 H 0.201      
8 H 0.171      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.697 1.876 0.000 3.286
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.486 5.718 0.000
y 5.718 -28.163 0.000
z 0.000 0.000 -23.261
Traceless
 xyz
x 1.226 5.718 0.000
y 5.718 -4.290 0.000
z 0.000 0.000 3.064
Polar
3z2-r26.128
x2-y23.677
xy5.718
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.595 0.390 0.000
y 0.390 4.477 0.000
z 0.000 0.000 2.402


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000