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: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-304.252529
Energy at 298.15K-304.258069
HF Energy-304.252529
Nuclear repulsion energy180.391925
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 B3PW91/6-311G*
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' 3755 3615 47.18      
2 A' 3729 3590 51.41      
3 A' 3023 2910 33.29      
4 A' 1840 1771 300.79      
5 A' 1504 1448 6.35      
6 A' 1486 1430 21.20      
7 A' 1373 1321 130.71      
8 A' 1304 1255 39.48      
9 A' 1201 1156 147.77      
10 A' 1139 1096 231.18      
11 A' 870 838 45.28      
12 A' 657 632 18.62      
13 A' 477 459 28.51      
14 A' 285 274 8.77      
15 A" 3047 2934 24.81      
16 A" 1254 1208 0.51      
17 A" 1046 1007 2.02      
18 A" 684 658 154.74      
19 A" 512 493 5.26      
20 A" 294 283 91.30      
21 A" 50 49 21.83      

Unscaled Zero Point Vibrational Energy (zpe) 14763.9 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 14213.2 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 B3PW91/6-311G*
ABC
0.35993 0.13609 0.10060

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.598 -0.863 0.000
C2 0.000 0.522 0.000
O3 -0.925 1.488 0.000
O4 1.188 0.728 0.000
O5 0.399 -1.841 0.000
H6 -1.245 -0.958 0.882
H7 -1.245 -0.958 -0.882
H8 1.248 -1.379 0.000
H9 -0.462 2.338 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.50802.37402.39201.39631.09831.09831.91703.2039
C21.50801.33821.20592.39612.12522.12522.27401.8742
O32.37401.33822.24573.58312.61982.61983.59830.9679
O42.39201.20592.24572.68813.08893.08892.10852.3048
O51.39632.39613.58312.68812.06422.06420.96724.2668
H61.09832.12522.61983.08892.06421.76452.67833.5005
H71.09832.12522.61983.08892.06421.76452.67833.5005
H81.91702.27403.59832.10850.96722.67832.67834.0917
H93.20391.87420.96792.30484.26683.50053.50054.0917

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 112.906 C1 C2 O4 123.233
C1 O5 H8 106.996 C2 C1 O5 111.119
C2 C1 H6 108.227 C2 C1 H7 108.227
C2 O3 H9 107.639 O3 C2 O4 123.861
O5 C1 H6 111.110 O5 C1 H7 111.110
H6 C1 H7 106.883
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.214      
2 C 0.342      
3 O -0.494      
4 O -0.355      
5 O -0.572      
6 H 0.238      
7 H 0.238      
8 H 0.404      
9 H 0.413      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.119 2.172 0.000 2.443
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.374 -0.498 0.000
y -0.498 -28.783 0.000
z 0.000 0.000 -28.087
Traceless
 xyz
x -1.939 -0.498 0.000
y -0.498 0.447 0.000
z 0.000 0.000 1.491
Polar
3z2-r22.983
x2-y2-1.591
xy-0.498
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.273 -0.091 0.000
y -0.091 5.238 0.000
z 0.000 0.000 3.108


<r2> (average value of r2) Å2
<r2> 110.535
(<r2>)1/2 10.514