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: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-301.439946
Energy at 298.15K-301.445585
HF Energy-300.961639
Nuclear repulsion energy178.027807
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 CID/3-21G*
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' 3676 3421 44.56      
2 A' 3644 3390 30.26      
3 A' 3141 2923 13.47      
4 A' 1860 1730 184.73      
5 A' 1626 1513 11.17      
6 A' 1532 1425 32.75      
7 A' 1434 1334 97.90      
8 A' 1376 1280 45.75      
9 A' 1183 1101 226.28      
10 A' 1091 1015 139.04      
11 A' 870 810 39.61      
12 A' 667 620 24.44      
13 A' 479 446 30.60      
14 A' 284 264 7.99      
15 A" 3171 2951 19.70      
16 A" 1286 1196 0.94      
17 A" 1121 1043 1.55      
18 A" 665 619 198.34      
19 A" 533 496 20.48      
20 A" 313 292 100.52      
21 A" 79 74 25.95      

Unscaled Zero Point Vibrational Energy (zpe) 15014.7 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 13971.2 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 CID/3-21G*
ABC
0.34864 0.13351 0.09831

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.615 -0.864 0.000
C2 0.000 0.520 0.000
O3 -0.951 1.496 0.000
O4 1.201 0.734 0.000
O5 0.430 -1.859 0.000
H6 -1.249 -0.958 0.884
H7 -1.249 -0.958 -0.884
H8 1.287 -1.375 0.000
H9 -0.534 2.386 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.51512.38402.41921.44201.09141.09141.96873.2516
C21.51511.36251.21992.41772.12712.12712.29071.9407
O32.38401.36252.28323.62772.62452.62453.64000.9836
O42.41921.21992.28322.70553.10553.10552.11092.3955
O51.44202.41773.62772.70552.09972.09970.98444.3530
H61.09142.12712.62453.10552.09971.76722.71703.5318
H71.09142.12712.62453.10552.09971.76722.71703.5318
H81.96872.29073.64002.11090.98442.71702.71704.1785
H93.25161.94070.98362.39554.35303.53183.53184.1785

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 111.772 C1 C2 O4 124.033
C1 O5 H8 106.944 C2 C1 O5 109.668
C2 C1 H6 108.287 C2 C1 H7 108.287
C2 O3 H9 110.577 O3 C2 O4 124.196
O5 C1 H6 111.198 O5 C1 H7 111.198
H6 C1 H7 108.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability