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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-228.715219
Energy at 298.15K-228.720235
HF Energy-227.856777
Nuclear repulsion energy120.216263
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 MP2=FULL/cc-pVTZ
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' 3749 3559 74.96      
2 A' 3060 2905 56.06      
3 A' 3026 2873 54.41      
4 A' 1780 1690 90.39      
5 A' 1513 1436 14.20      
6 A' 1463 1389 48.54      
7 A' 1420 1348 19.66      
8 A' 1320 1253 46.23      
9 A' 1160 1102 77.93      
10 A' 900 854 48.45      
11 A' 777 737 10.36      
12 A' 297 282 23.41      
13 A" 3081 2925 15.65      
14 A" 1277 1213 2.05      
15 A" 1132 1075 0.59      
16 A" 749 711 0.02      
17 A" 435 413 82.11      
18 A" 222 211 2.56      

Unscaled Zero Point Vibrational Energy (zpe) 13680.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 12988.2 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 MP2=FULL/cc-pVTZ
ABC
0.61744 0.22278 0.16878

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.929 0.000
C2 0.924 -0.265 0.000
O3 -1.345 0.570 0.000
O4 0.509 -1.396 0.000
H5 -1.333 -0.392 0.000
H6 0.239 1.528 0.878
H7 0.239 1.528 -0.878
H8 2.000 -0.044 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50911.39212.37961.87621.08961.08962.2240
C21.50912.41761.20472.25992.11002.11001.0989
O31.39212.41762.70260.96232.04922.04923.4012
O42.37961.20472.70262.09763.06453.06452.0127
H51.87622.25990.96232.09762.63212.63213.3509
H61.08962.11002.04923.06452.63211.75632.5181
H71.08962.11002.04923.06452.63211.75632.5181
H82.22401.09893.40122.01273.35092.51812.5181

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 122.132 C1 C2 H8 116.143
C1 O3 H5 104.171 C2 C1 O3 112.819
C2 C1 H6 107.471 C2 C1 H7 107.471
O3 C1 H6 110.726 O3 C1 H7 110.726
O4 C2 H8 121.726 H6 C1 H7 107.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability