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

using model chemistry: B2PLYP/cc-pVTZ

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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-228.965883
Energy at 298.15K-228.970844
HF Energy-228.704424
Nuclear repulsion energy119.729015
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 B2PLYP/cc-pVTZ
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' 3724 3573 64.24      
2 A' 3006 2884 61.41      
3 A' 2964 2843 64.89      
4 A' 1778 1706 123.26      
5 A' 1496 1435 16.44      
6 A' 1453 1394 55.38      
7 A' 1402 1345 17.65      
8 A' 1310 1257 48.23      
9 A' 1140 1094 76.69      
10 A' 877 841 50.43      
11 A' 768 736 10.25      
12 A' 291 279 23.33      
13 A" 3027 2904 20.82      
14 A" 1262 1211 2.00      
15 A" 1116 1071 0.33      
16 A" 734 704 0.01      
17 A" 415 398 83.07      
18 A" 218 209 2.94      

Unscaled Zero Point Vibrational Energy (zpe) 13490.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 12942.5 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 B2PLYP/cc-pVTZ
ABC
0.61711 0.21939 0.16683

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -0.928 0.000
C2 -0.929 0.273 0.000
O3 1.355 -0.585 0.000
O4 -0.517 1.405 0.000
H5 1.373 0.378 0.000
H6 -0.244 -1.532 0.880
H7 -0.244 -1.532 -0.880
H8 -2.012 0.052 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51811.39752.38901.89521.09481.09482.2373
C21.51812.43931.20392.30452.12172.12171.1051
O31.39752.43932.73160.96322.05602.05603.4259
O42.38901.20392.73162.15123.07773.07772.0155
H51.89522.30450.96322.15122.65312.65313.4005
H61.09482.12172.05603.07772.65311.75942.5312
H71.09482.12172.05603.07772.65311.75942.5312
H82.23731.10513.42592.01553.40052.53122.5312

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 122.297 C1 C2 H8 116.166
C1 O3 H5 105.316 C2 C1 O3 113.508
C2 C1 H6 107.477 C2 C1 H7 107.477
O3 C1 H6 110.580 O3 C1 H7 110.580
O4 C2 H8 121.537 H6 C1 H7 106.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.063      
2 C 0.097      
3 O -0.351      
4 O -0.262      
5 H 0.219      
6 H 0.072      
7 H 0.072      
8 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.928 -1.375 0.000 2.368
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.281 3.843 0.000
y 3.843 -26.230 0.000
z 0.000 0.000 -23.220
Traceless
 xyz
x 0.444 3.843 0.000
y 3.843 -2.479 0.000
z 0.000 0.000 2.036
Polar
3z2-r24.071
x2-y21.948
xy3.843
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.972 0.173 0.000
y 0.173 5.346 0.000
z 0.000 0.000 3.397


<r2> (average value of r2) Å2
<r2> 72.893
(<r2>)1/2 8.538