return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/CEP-121G

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 B3LYP/CEP-121G
 hartrees
Energy at 0K-45.571415
Energy at 298.15K-45.576157
Nuclear repulsion energy65.823740
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 B3LYP/CEP-121G
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' 3578 3486 21.14      
2 A' 2990 2913 106.25      
3 A' 2967 2892 12.67      
4 A' 1663 1621 109.01      
5 A' 1497 1459 17.90      
6 A' 1411 1375 50.99      
7 A' 1384 1349 20.29      
8 A' 1265 1233 63.53      
9 A' 1076 1049 65.09      
10 A' 858 836 54.50      
11 A' 732 713 11.17      
12 A' 274 267 24.32      
13 A" 3015 2938 32.46      
14 A" 1220 1189 7.30      
15 A" 1100 1072 0.31      
16 A" 742 723 0.04      
17 A" 353 344 136.69      
18 A" 149 145 25.93      

Unscaled Zero Point Vibrational Energy (zpe) 13136.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 12801.6 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 B3LYP/CEP-121G
ABC
0.58150 0.21026 0.15905

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.954 0.000
C2 0.958 -0.235 0.000
O3 -1.386 0.539 0.000
O4 0.538 -1.414 0.000
H5 -1.424 -0.446 0.000
H6 0.208 1.574 0.888
H7 0.208 1.574 -0.888
H8 2.042 -0.014 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.52681.44692.42851.99711.10251.10252.2596
C21.52682.46871.25222.39222.14962.14961.1056
O31.44692.46872.74170.98542.09802.09803.4721
O42.42851.25222.74172.18853.13453.13452.0544
H51.99712.39220.98542.18852.74472.74473.4929
H61.10252.14962.09803.13452.74471.77512.5827
H71.10252.14962.09803.13452.74471.77512.5827
H82.25961.10563.47212.05443.49292.58272.5827

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 121.514 C1 C2 H8 117.375
C1 O3 H5 108.902 C2 C1 O3 112.208
C2 C1 H6 108.608 C2 C1 H7 108.608
O3 C1 H6 110.024 O3 C1 H7 110.024
O4 C2 H8 121.111 H6 C1 H7 107.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.149      
2 C -0.019      
3 O -0.460      
4 O -0.184      
5 H 0.356      
6 H 0.170      
7 H 0.170      
8 H 0.116      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.434 1.583 0.000 2.904
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.991 5.126 0.000
y 5.126 -27.217 0.000
z 0.000 0.000 -23.365
Traceless
 xyz
x 0.300 5.126 0.000
y 5.126 -3.039 0.000
z 0.000 0.000 2.739
Polar
3z2-r25.478
x2-y22.226
xy5.126
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.722 0.347 0.000
y 0.347 5.327 0.000
z 0.000 0.000 3.008


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