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

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-224.983031
Energy at 298.15K-224.987763
HF Energy-224.764527
Nuclear repulsion energy116.412985
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/STO-3G
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' 3770 3351 7.14      
2 A' 3342 2971 23.07      
3 A' 3334 2963 4.59      
4 A' 1742 1548 16.37      
5 A' 1713 1523 0.89      
6 A' 1698 1509 33.26      
7 A' 1457 1295 4.48      
8 A' 1426 1268 28.59      
9 A' 1195 1063 7.69      
10 A' 956 850 8.06      
11 A' 773 687 3.92      
12 A' 277 246 15.19      
13 A" 3433 3051 7.60      
14 A" 1313 1167 0.16      
15 A" 1121 997 1.81      
16 A" 780 694 0.25      
17 A" 483 429 58.42      
18 A" 168 150 2.96      

Unscaled Zero Point Vibrational Energy (zpe) 14491.6 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 12881.5 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 MP2=FULL/STO-3G
ABC
0.55483 0.21727 0.16098

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.991 0.000
C2 0.977 -0.241 0.000
O3 -1.374 0.505 0.000
O4 0.480 -1.405 0.000
H5 -1.195 -0.501 0.000
H6 0.205 1.620 0.898
H7 0.205 1.620 -0.898
H8 2.078 -0.037 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.57191.45722.44311.91171.11581.11582.3185
C21.57192.46611.26532.18752.20592.20591.1204
O31.45722.46612.66181.02202.13142.13143.4945
O42.44311.26532.66181.90363.16753.16752.1036
H51.91172.18751.02201.90362.69592.69593.3064
H61.11582.20592.13143.16752.69591.79622.6574
H71.11582.20592.13143.16752.69591.79622.6574
H82.31851.12043.49452.10363.30642.65742.6574

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 118.485 C1 C2 H8 117.918
C1 O3 H5 99.405 C2 C1 O3 108.947
C2 C1 H6 109.143 C2 C1 H7 109.143
O3 C1 H6 111.179 O3 C1 H7 111.179
O4 C2 H8 123.596 H6 C1 H7 107.205
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability