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 HOCH2COOH (Hydroxyacetic acid)

using model chemistry: B3LYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-304.299873
Energy at 298.15K-304.305429
HF Energy-304.299873
Nuclear repulsion energy179.633221
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/6-31G**
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' 3752 3605 57.35      
2 A' 3727 3581 69.24      
3 A' 3010 2892 30.69      
4 A' 1837 1765 262.62      
5 A' 1512 1452 4.90      
6 A' 1482 1424 18.14      
7 A' 1370 1317 144.33      
8 A' 1304 1252 24.77      
9 A' 1189 1142 140.10      
10 A' 1127 1083 216.36      
11 A' 862 828 41.07      
12 A' 650 625 17.75      
13 A' 473 454 26.54      
14 A' 285 274 8.94      
15 A" 3034 2915 26.88      
16 A" 1247 1198 0.68      
17 A" 1046 1005 1.18      
18 A" 668 642 138.16      
19 A" 504 484 3.88      
20 A" 314 301 76.85      
21 A" 63 61 14.64      

Unscaled Zero Point Vibrational Energy (zpe) 14727.7 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 14150.4 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/6-31G**
ABC
0.35628 0.13512 0.09979

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.604 -0.867 0.000
C2 0.000 0.523 0.000
O3 -0.926 1.498 0.000
O4 1.197 0.725 0.000
O5 0.397 -1.848 0.000
H6 -1.255 -0.956 0.883
H7 -1.255 -0.956 -0.883
H8 1.241 -1.368 0.000
H9 -0.446 2.344 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51572.38722.40391.40181.10041.10041.91233.2151
C21.51571.34491.21372.40442.13112.13112.26181.8748
O32.38721.34492.25913.59862.62862.62863.59330.9725
O42.40391.21372.25912.69503.10113.10112.09342.3062
O51.40182.40443.59862.69502.07502.07500.97184.2763
H61.10042.13112.62863.10112.07501.76542.68013.5103
H71.10042.13112.62863.10112.07501.76542.68013.5103
H81.91232.26183.59332.09340.97182.68012.68014.0772
H93.21511.87480.97252.30624.27633.51033.51034.0772

picture of Hydroxyacetic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 112.996 C1 C2 O4 123.082
C1 O5 H8 105.926 C2 C1 O5 110.938
C2 C1 H6 108.038 C2 C1 H7 108.038
C2 O3 H9 106.903 O3 C2 O4 123.922
O5 C1 H6 111.483 O5 C1 H7 111.483
H6 C1 H7 106.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.034      
2 C 0.532      
3 O -0.470      
4 O -0.468      
5 O -0.542      
6 H 0.130      
7 H 0.130      
8 H 0.323      
9 H 0.332      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.174 2.066 0.000 2.376
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.065 -0.435 0.000
y -0.435 -28.322 0.000
z 0.000 0.000 -27.891
Traceless
 xyz
x -1.959 -0.435 0.000
y -0.435 0.656 0.000
z 0.000 0.000 1.303
Polar
3z2-r22.605
x2-y2-1.743
xy-0.435
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.187 -0.122 0.000
y -0.122 5.184 0.000
z 0.000 0.000 3.002


<r2> (average value of r2) Å2
<r2> 111.022
(<r2>)1/2 10.537