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-304.286009
Energy at 298.15K-304.291539
HF Energy-304.286009
Nuclear repulsion energy179.536703
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' 3684 3538 52.72      
2 A' 3666 3520 67.13      
3 A' 3019 2900 30.43      
4 A' 1839 1766 262.53      
5 A' 1527 1467 5.66      
6 A' 1495 1435 22.80      
7 A' 1378 1323 136.80      
8 A' 1314 1262 26.25      
9 A' 1196 1148 153.38      
10 A' 1128 1083 205.36      
11 A' 863 829 39.37      
12 A' 650 624 18.08      
13 A' 473 454 26.58      
14 A' 287 276 8.50      
15 A" 3041 2920 28.02      
16 A" 1252 1203 0.68      
17 A" 1053 1011 1.12      
18 A" 674 647 141.73      
19 A" 507 487 3.66      
20 A" 309 296 78.37      
21 A" 54 52 16.64      

Unscaled Zero Point Vibrational Energy (zpe) 14704.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 14120.5 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
0.35598 0.13503 0.09972

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 -0.605 -0.867 0.000
C2 0.000 0.523 0.000
O3 -0.927 1.499 0.000
O4 1.197 0.726 0.000
O5 0.397 -1.849 0.000
H6 -1.255 -0.960 0.883
H7 -1.255 -0.960 -0.883
H8 1.246 -1.368 0.000
H9 -0.444 2.347 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51652.38802.40501.40271.10071.10071.91713.2187
C21.51651.34561.21362.40462.13412.13412.26411.8775
O32.38801.34562.25953.59962.63302.63303.59640.9761
O42.40501.21362.25952.69533.10353.10352.09372.3068
O51.40272.40463.59962.69532.07392.07390.97504.2793
H61.10072.13412.63303.10352.07391.76692.68333.5178
H71.10072.13412.63303.10352.07391.76692.68333.5178
H81.91712.26413.59642.09370.97502.68332.68334.0810
H93.21871.87750.97612.30684.27933.51783.51784.0810

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 112.961 C1 C2 O4 123.126
C1 O5 H8 106.068 C2 C1 O5 110.860
C2 C1 H6 108.213 C2 C1 H7 108.213
C2 O3 H9 106.849 O3 C2 O4 123.913
O5 C1 H6 111.310 O5 C1 H7 111.310
H6 C1 H7 106.767
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 -0.068      
2 C 0.533      
3 O -0.552      
4 O -0.464      
5 O -0.621      
6 H 0.170      
7 H 0.170      
8 H 0.412      
9 H 0.419      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.144 2.099 0.000 2.391
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.090 -0.409 0.000
y -0.409 -28.412 0.000
z 0.000 0.000 -27.938
Traceless
 xyz
x -1.915 -0.409 0.000
y -0.409 0.603 0.000
z 0.000 0.000 1.313
Polar
3z2-r22.626
x2-y2-1.679
xy-0.409
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.158 -0.121 0.000
y -0.121 5.143 0.000
z 0.000 0.000 2.964


<r2> (average value of r2) Å2
<r2> 111.136
(<r2>)1/2 10.542