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: MP2=FULL/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 MP2=FULL/6-311G**
 hartrees
Energy at 0K-303.716037
Energy at 298.15K 
HF Energy-302.746898
Nuclear repulsion energy180.159899
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 MP2=FULL/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' 3831 3634 66.58      
2 A' 3823 3626 91.44      
3 A' 3084 2925 26.77      
4 A' 1841 1747 236.85      
5 A' 1522 1444 4.38      
6 A' 1504 1427 11.40      
7 A' 1382 1311 134.69      
8 A' 1317 1249 19.45      
9 A' 1202 1140 129.49      
10 A' 1146 1087 233.86      
11 A' 885 839 34.01      
12 A' 662 628 19.77      
13 A' 480 456 26.23      
14 A' 286 271 8.86      
15 A" 3126 2966 17.80      
16 A" 1267 1202 0.22      
17 A" 1056 1002 0.73      
18 A" 650 616 127.90      
19 A" 500 474 10.29      
20 A" 269 255 62.88      
21 A" 78i 74i 31.46      

Unscaled Zero Point Vibrational Energy (zpe) 14876.6 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 14111.9 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 MP2=FULL/6-311G**
ABC
0.35675 0.13607 0.10035

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.597 -0.865 0.000
C2 0.000 0.523 0.000
O3 -0.939 1.483 0.000
O4 1.192 0.733 0.000
O5 0.408 -1.843 0.000
H6 -1.237 -0.953 0.885
H7 -1.237 -0.953 -0.885
H8 1.234 -1.347 0.000
H9 -0.460 2.323 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51042.37262.39821.40231.09581.09581.89313.1908
C21.51041.34301.20992.40072.11942.11942.23971.8584
O32.37261.34302.25843.58842.60912.60913.56750.9667
O42.39821.20992.25842.69273.08613.08612.08002.2928
O51.40232.40073.58842.69272.06892.06890.96384.2557
H61.09582.11942.60913.08612.06891.77002.65383.4815
H71.09582.11942.60913.08612.06891.77002.65383.4815
H81.89312.23973.56752.08000.96382.65382.65384.0419
H93.19081.85840.96672.29284.25573.48153.48154.0419

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 112.373 C1 C2 O4 123.290
C1 O5 H8 104.750 C2 C1 O5 110.962
C2 C1 H6 107.759 C2 C1 H7 107.759
C2 O3 H9 105.993 O3 C2 O4 124.337
O5 C1 H6 111.231 O5 C1 H7 111.231
H6 C1 H7 107.734
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability