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: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-304.171457
Energy at 298.15K-304.177048
HF Energy-304.171457
Nuclear repulsion energy180.088037
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3719 3558 61.78      
2 A' 3689 3529 74.85      
3 A' 3028 2896 30.17      
4 A' 1855 1775 269.98      
5 A' 1522 1456 5.52      
6 A' 1500 1435 19.96      
7 A' 1385 1325 155.54      
8 A' 1314 1257 22.49      
9 A' 1204 1152 138.12      
10 A' 1148 1098 216.26      
11 A' 872 834 42.12      
12 A' 654 625 18.30      
13 A' 475 455 28.39      
14 A' 286 274 8.84      
15 A" 3054 2922 25.87      
16 A" 1253 1199 0.80      
17 A" 1050 1004 1.46      
18 A" 678 649 144.39      
19 A" 510 487 3.57      
20 A" 325 311 82.98      
21 A" 70 67 14.68      

Unscaled Zero Point Vibrational Energy (zpe) 14794.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 14153.9 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 B3PW91/6-31G*
ABC
0.35776 0.13611 0.10044

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.607 -0.864 0.000
C2 0.000 0.521 0.000
O3 -0.918 1.498 0.000
O4 1.197 0.716 0.000
O5 0.391 -1.841 0.000
H6 -1.258 -0.954 0.883
H7 -1.258 -0.954 -0.883
H8 1.236 -1.357 0.000
H9 -0.430 2.341 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51182.38222.39751.39661.10091.10091.90763.2101
C21.51181.34091.21232.39372.13042.13042.24761.8708
O32.38221.34092.25463.58632.62872.62873.57600.9743
O42.39751.21232.25462.68073.09753.09752.07292.2997
O51.39662.39373.58632.68072.06992.06990.97384.2621
H61.10092.13042.62873.09752.06991.76652.67593.5111
H71.10092.13042.62873.09752.06991.76652.67593.5111
H81.90762.24763.57602.07290.97382.67592.67594.0560
H93.21011.87080.97432.29974.26213.51113.51114.0560

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 113.117 C1 C2 O4 122.937
C1 O5 H8 105.787 C2 C1 O5 110.721
C2 C1 H6 108.227 C2 C1 H7 108.227
C2 O3 H9 106.748 O3 C2 O4 123.946
O5 C1 H6 111.399 O5 C1 H7 111.399
H6 C1 H7 106.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.118      
2 C 0.538      
3 O -0.563      
4 O -0.472      
5 O -0.631      
6 H 0.194      
7 H 0.194      
8 H 0.426      
9 H 0.433      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.162 2.145 0.000 2.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.951 -0.355 0.000
y -0.355 -28.239 0.000
z 0.000 0.000 -27.874
Traceless
 xyz
x -1.895 -0.355 0.000
y -0.355 0.674 0.000
z 0.000 0.000 1.221
Polar
3z2-r22.442
x2-y2-1.713
xy-0.355
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.146 -0.107 0.000
y -0.107 5.092 0.000
z 0.000 0.000 2.979


<r2> (average value of r2) Å2
<r2> 110.396
(<r2>)1/2 10.507