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/6-311G**

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/6-311G**
 hartrees
Energy at 0K-229.110140
Energy at 298.15K-229.115026
Nuclear repulsion energy119.554446
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/6-311G**
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' 3710 3587 59.71      
2 A' 2968 2870 59.44      
3 A' 2918 2821 79.07      
4 A' 1802 1742 149.66      
5 A' 1479 1430 18.69      
6 A' 1442 1395 62.21      
7 A' 1391 1345 25.17      
8 A' 1299 1256 43.58      
9 A' 1130 1092 78.11      
10 A' 863 834 51.60      
11 A' 767 742 10.07      
12 A' 294 284 23.99      
13 A" 2980 2881 29.08      
14 A" 1244 1203 2.65      
15 A" 1109 1072 0.13      
16 A" 725 701 0.09      
17 A" 393 380 88.52      
18 A" 191 184 8.93      

Unscaled Zero Point Vibrational Energy (zpe) 13352.1 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 12908.8 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 B3LYP/6-311G**
ABC
0.61616 0.21848 0.16628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.932 0.000
C2 0.927 -0.257 0.000
O3 -1.348 0.553 0.000
O4 0.508 -1.389 0.000
H5 -1.349 -0.416 0.000
H6 0.246 1.546 0.882
H7 0.246 1.546 -0.882
H8 2.014 -0.040 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50831.40012.37611.90711.10201.10202.2364
C21.50832.41531.20692.28162.11952.11951.1086
O31.40012.41532.68630.96952.07432.07433.4141
O42.37611.20692.68632.09603.07543.07542.0226
H51.90712.28160.96952.09602.67752.67753.3841
H61.10202.11952.07433.07542.67751.76362.5332
H71.10202.11952.07433.07542.67751.76362.5332
H82.23641.10863.41412.02263.38412.53322.5332

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 121.715 C1 C2 H8 116.606
C1 O3 H5 105.750 C2 C1 O3 112.241
C2 C1 H6 107.563 C2 C1 H7 107.563
O3 C1 H6 111.440 O3 C1 H7 111.440
O4 C2 H8 121.679 H6 C1 H7 106.297
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 C 0.120      
3 O -0.392      
4 O -0.292      
5 H 0.243      
6 H 0.116      
7 H 0.116      
8 H 0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.968 1.323 0.000 2.371
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.223 4.003 0.000
y 4.003 -26.201 0.000
z 0.000 0.000 -23.027
Traceless
 xyz
x 0.391 4.003 0.000
y 4.003 -2.576 0.000
z 0.000 0.000 2.185
Polar
3z2-r24.369
x2-y21.978
xy4.003
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.699 0.234 0.000
y 0.234 5.081 0.000
z 0.000 0.000 3.041


<r2> (average value of r2) Å2
<r2> 73.049
(<r2>)1/2 8.547