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/3-21G*

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/3-21G*
 hartrees
Energy at 0K-302.595614
Energy at 298.15K-302.601230
HF Energy-302.595614
Nuclear repulsion energy177.632799
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/3-21G*
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' 3469 3337 21.40      
2 A' 3391 3262 30.93      
3 A' 3026 2911 22.52      
4 A' 1762 1695 155.92      
5 A' 1555 1496 11.42      
6 A' 1482 1426 59.43      
7 A' 1381 1328 90.45      
8 A' 1323 1273 35.10      
9 A' 1125 1082 194.18      
10 A' 1044 1004 135.01      
11 A' 836 805 41.05      
12 A' 637 613 16.16      
13 A' 461 444 30.48      
14 A' 273 262 9.73      
15 A" 3043 2927 27.11      
16 A" 1234 1187 2.61      
17 A" 1072 1031 1.52      
18 A" 664 639 168.39      
19 A" 518 498 9.31      
20 A" 358 344 89.39      
21 A" 94 90 13.38      

Unscaled Zero Point Vibrational Energy (zpe) 14373.3 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 13827.1 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/3-21G*
ABC
0.34641 0.13357 0.09817

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.625 -0.862 0.000
C2 0.000 0.519 0.000
O3 -0.939 1.510 0.000
O4 1.214 0.712 0.000
O5 0.413 -1.861 0.000
H6 -1.271 -0.943 0.885
H7 -1.271 -0.943 -0.885
H8 1.270 -1.343 0.000
H9 -0.484 2.398 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51572.39322.42071.44011.09881.09881.95413.2635
C21.51571.36551.22972.41562.12952.12952.25331.9406
O32.39321.36552.29673.63232.62872.62873.60800.9980
O42.42071.22972.29672.69513.11423.11422.05542.3931
O51.44012.41563.63232.69512.11222.11221.00164.3527
H61.09882.12952.62873.11422.11221.76982.71993.5447
H71.09882.12952.62873.11422.11221.76982.71993.5447
H81.95412.25333.60802.05541.00162.71992.71994.1314
H93.26351.94060.99802.39314.35273.54473.54474.1314

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 112.216 C1 C2 O4 123.364
C1 O5 H8 104.898 C2 C1 O5 109.591
C2 C1 H6 108.008 C2 C1 H7 108.008
C2 O3 H9 109.395 O3 C2 O4 124.419
O5 C1 H6 111.895 O5 C1 H7 111.895
H6 C1 H7 107.281
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.169      
2 C 0.581      
3 O -0.548      
4 O -0.475      
5 O -0.561      
6 H 0.225      
7 H 0.225      
8 H 0.348      
9 H 0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.015 2.525 0.000 2.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.403 -0.190 0.000
y -0.190 -28.613 0.000
z 0.000 0.000 -27.815
Traceless
 xyz
x -2.189 -0.190 0.000
y -0.190 0.496 0.000
z 0.000 0.000 1.693
Polar
3z2-r23.387
x2-y2-1.790
xy-0.190
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.819 -0.181 0.000
y -0.181 4.805 0.000
z 0.000 0.000 2.341


<r2> (average value of r2) Å2
<r2> 112.698
(<r2>)1/2 10.616