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: HSEh1PBE/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 HSEh1PBE/6-31G*
 hartrees
Energy at 0K-303.986744
Energy at 298.15K-303.992373
Nuclear repulsion energy180.516046
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 HSEh1PBE/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 3740 3557 66.74      
2 A 3707 3526 78.74      
3 A 3069 2919 24.57      
4 A 3041 2892 29.19      
5 A 1873 1781 277.42      
6 A 1527 1452 4.72      
7 A 1511 1437 19.22      
8 A 1396 1328 166.02      
9 A 1322 1257 19.90      
10 A 1258 1196 0.82      
11 A 1216 1157 141.34      
12 A 1163 1106 210.42      
13 A 1054 1003 1.55      
14 A 881 838 42.61      
15 A 681 648 145.83      
16 A 660 627 19.20      
17 A 512 487 3.31      
18 A 480 456 28.97      
19 A 332 316 82.69      
20 A 291 276 8.76      
21 A 74 71 14.40      

Unscaled Zero Point Vibrational Energy (zpe) 14893.5 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 14163.7 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 HSEh1PBE/6-31G*
ABC
0.35940 0.13687 0.10099

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.741 -0.750 0.004
C2 0.511 0.091 0.000
O3 1.634 -0.635 -0.002
O4 0.489 1.301 0.001
O5 -1.875 0.059 -0.005
H6 -0.713 -1.412 -0.874
H7 -0.714 -1.401 0.891
H8 -1.547 0.974 0.007
H9 2.375 -0.006 -0.003

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.50872.37762.39151.39271.10041.10081.90303.2040
C21.50871.33681.21032.38672.12722.12602.23961.8662
O32.37761.33682.24953.57672.62142.62553.56440.9729
O42.39151.21032.24952.67043.09443.08822.06152.2946
O51.39272.38673.57672.67042.06682.06910.97274.2507
H61.10042.12722.62143.09442.06681.76532.67743.5037
H71.10082.12602.62553.08822.06911.76532.66763.5052
H81.90302.23963.56442.06150.97272.67742.66764.0423
H93.20401.86620.97292.29464.25073.50373.50524.0423

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 113.213 C1 C2 O4 122.800
C1 O5 H8 105.755 C2 C1 O5 110.630
C2 C1 H6 108.214 C2 C1 H7 108.098
C2 O3 H9 106.737 O3 C2 O4 123.987
O5 C1 H6 111.459 O5 C1 H7 111.620
H6 C1 H7 106.644
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.121      
2 C 0.539      
3 O -0.565      
4 O -0.472      
5 O -0.633      
6 H 0.195      
7 H 0.195      
8 H 0.428      
9 H 0.435      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.328 -0.767 0.023 2.451
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.217 -0.019 -0.052
y -0.019 -30.072 0.013
z -0.052 0.013 -27.921
Traceless
 xyz
x 0.780 -0.019 -0.052
y -0.019 -2.003 0.013
z -0.052 0.013 1.223
Polar
3z2-r22.447
x2-y21.855
xy-0.019
xz-0.052
yz0.013


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.084 -0.109 -0.001
y -0.109 5.080 0.000
z -0.001 0.000 2.972


<r2> (average value of r2) Å2
<r2> 109.942
(<r2>)1/2 10.485