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: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-304.320615
Energy at 298.15K-304.326265
HF Energy-304.320615
Nuclear repulsion energy179.989130
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 TPSSh/6-31G(2df,p)
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 3716 3586 52.04      
2 A 3668 3539 73.50      
3 A 3022 2916 26.16      
4 A 2998 2893 33.14      
5 A 1812 1749 243.66      
6 A 1504 1451 6.51      
7 A 1476 1425 20.34      
8 A 1366 1318 138.38      
9 A 1296 1251 19.83      
10 A 1238 1195 0.43      
11 A 1171 1130 123.63      
12 A 1116 1077 208.59      
13 A 1036 1000 0.68      
14 A 855 825 35.73      
15 A 664 641 114.66      
16 A 642 620 16.65      
17 A 504 486 2.89      
18 A 465 448 27.88      
19 A 362 350 65.09      
20 A 283 273 8.49      
21 A 93 89 6.52      

Unscaled Zero Point Vibrational Energy (zpe) 14642.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 14130.3 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 TPSSh/6-31G(2df,p)
ABC
0.35739 0.13608 0.10040

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.740 -0.754 0.018
C2 0.514 0.100 0.006
O3 1.635 -0.639 -0.014
O4 0.485 1.309 0.010
O5 -1.878 0.055 -0.019
H6 -0.701 -1.441 -0.840
H7 -0.723 -1.373 0.927
H8 -1.547 0.965 -0.031
H9 2.385 -0.026 -0.016

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51782.37762.39911.39661.09951.10011.89963.2093
C21.51781.34241.20852.39262.13732.13332.23561.8753
O32.37761.34242.26153.58022.60332.64273.56300.9695
O42.39911.20852.26152.67503.11273.08132.06162.3217
O51.39662.39263.58022.67502.07352.06580.96804.2637
H61.09952.13732.60333.11272.07351.76782.67583.4934
H71.10012.13332.64273.08132.06581.76782.65763.5169
H81.89962.23563.56302.06160.96802.67582.65764.0551
H93.20931.87530.96952.32174.26373.49343.51694.0551

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 112.316 C1 C2 O4 122.880
C1 O5 H8 105.460 C2 C1 O5 110.294
C2 C1 H6 108.434 C2 C1 H7 108.096
C2 O3 H9 107.315 O3 C2 O4 124.803
O5 C1 H6 111.786 O5 C1 H7 111.110
H6 C1 H7 106.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability