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: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-303.505239
Energy at 298.15K 
HF Energy-302.669811
Nuclear repulsion energy179.496109
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 QCISD/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' 3853 3627 52.90      
2 A' 3846 3621 78.71      
3 A' 3096 2914 26.95      
4 A' 1862 1753 248.23      
5 A' 1565 1473 4.04      
6 A' 1528 1439 8.86      
7 A' 1400 1318 146.60      
8 A' 1335 1257 25.45      
9 A' 1217 1146 149.52      
10 A' 1148 1081 204.05      
11 A' 887 835 33.79      
12 A' 656 618 22.03      
13 A' 478 450 27.40      
14 A' 289 272 7.60      
15 A" 3133 2949 25.81      
16 A" 1276 1202 0.44      
17 A" 1076 1013 0.50      
18 A" 669 630 152.65      
19 A" 511 481 4.67      
20 A" 274 258 72.74      
21 A" 52i 49i 27.42      

Unscaled Zero Point Vibrational Energy (zpe) 15023.1 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 14142.8 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 QCISD/6-31G**
ABC
0.35384 0.13514 0.09960

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.601 -0.867 0.000
C2 0.000 0.523 0.000
O3 -0.940 1.488 0.000
O4 1.197 0.739 0.000
O5 0.407 -1.849 0.000
H6 -1.242 -0.960 0.882
H7 -1.242 -0.960 -0.882
H8 1.249 -1.373 0.000
H9 -0.470 2.335 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51402.37942.41021.40681.09451.09451.91713.2047
C21.51401.34741.21622.40622.12562.12562.27021.8723
O32.37941.34742.26463.59842.61902.61903.60240.9686
O42.41021.21622.26462.70533.10023.10022.11262.3082
O51.40682.40623.59842.70532.07092.07090.96654.2747
H61.09452.12562.61903.10022.07091.76352.67453.4968
H71.09452.12562.61903.10022.07091.76352.67453.4968
H81.91712.27023.60242.11260.96652.67452.67454.0873
H93.20471.87230.96862.30824.27473.49683.49684.0873

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 112.383 C1 C2 O4 123.597
C1 O5 H8 106.283 C2 C1 O5 110.881
C2 C1 H6 108.067 C2 C1 H7 108.067
C2 O3 H9 106.735 O3 C2 O4 124.020
O5 C1 H6 111.165 O5 C1 H7 111.165
H6 C1 H7 107.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability