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/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-229.147808
Energy at 298.15K-229.152731
HF Energy-229.147808
Nuclear repulsion energy119.615360
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/Def2TZVPP
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' 3713 3575 62.02      
2 A' 2975 2864 59.89      
3 A' 2925 2816 67.32      
4 A' 1796 1729 156.09      
5 A' 1476 1420 19.60      
6 A' 1437 1383 44.45      
7 A' 1395 1343 24.23      
8 A' 1298 1249 48.54      
9 A' 1130 1088 82.11      
10 A' 865 833 53.81      
11 A' 764 735 9.78      
12 A' 284 274 23.38      
13 A" 2987 2875 19.50      
14 A" 1253 1206 2.35      
15 A" 1107 1065 0.17      
16 A" 723 696 0.02      
17 A" 406 391 88.93      
18 A" 220 212 3.49      

Unscaled Zero Point Vibrational Energy (zpe) 13375.9 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 12875.6 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/Def2TZVPP
ABC
0.62064 0.21749 0.16600

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -0.924 0.000
C2 -0.930 0.278 0.000
O3 1.359 -0.593 0.000
O4 -0.523 1.407 0.000
H5 1.402 0.371 0.000
H6 -0.246 -1.531 0.880
H7 -0.246 -1.531 -0.880
H8 -2.015 0.055 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51991.39852.38931.90881.09721.09722.2406
C21.51992.44871.20072.33462.12502.12501.1073
O31.39852.44872.74560.96412.05672.05673.4354
O42.38931.20072.74562.18663.07993.07992.0133
H51.90882.33460.96412.18662.66612.66613.4320
H61.09722.12502.05673.07992.66611.76082.5345
H71.09722.12502.05673.07992.66611.76082.5345
H82.24061.10733.43542.01333.43202.53452.5345

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 122.425 C1 C2 H8 116.168
C1 O3 H5 106.325 C2 C1 O3 114.018
C2 C1 H6 107.482 C2 C1 H7 107.482
O3 C1 H6 110.410 O3 C1 H7 110.410
O4 C2 H8 121.407 H6 C1 H7 106.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.120      
2 C 0.107      
3 O -0.353      
4 O -0.285      
5 H 0.202      
6 H 0.067      
7 H 0.067      
8 H 0.075      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.875 -1.469 0.000 2.382
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.347 3.935 0.000
y 3.935 -26.491 0.000
z 0.000 0.000 -23.309
Traceless
 xyz
x 0.553 3.935 0.000
y 3.935 -2.663 0.000
z 0.000 0.000 2.110
Polar
3z2-r24.220
x2-y22.144
xy3.935
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.203 0.140 0.000
y 0.140 5.569 0.000
z 0.000 0.000 3.612


<r2> (average value of r2) Å2
<r2> 73.271
(<r2>)1/2 8.560