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All results from a given calculation for CHOCOOH (oxo acetic acid)

using model chemistry: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-302.618130
Energy at 298.15K-302.621328
HF Energy-301.604570
Nuclear repulsion energy163.757530
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 CCD/aug-cc-pVTZ
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' 3777 3615 112.12      
2 A' 3077 2945 24.71      
3 A' 1913 1831 208.32      
4 A' 1842 1763 121.32      
5 A' 1426 1365 326.68      
6 A' 1379 1320 20.78      
7 A' 1259 1205 10.93      
8 A' 913 874 51.40      
9 A' 699 669 17.14      
10 A' 520 497 6.64      
11 A' 286 274 32.51      
12 A" 1038 994 4.18      
13 A" 668 639 65.47      
14 A" 595 569 46.34      
15 A" 169 162 28.78      

Unscaled Zero Point Vibrational Energy (zpe) 9780.7 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9360.1 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 CCD/aug-cc-pVTZ
ABC
0.36881 0.15440 0.10884

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.744 -0.757 0.000
C2 0.000 0.578 0.000
O3 -0.144 -1.798 0.000
O4 -0.585 1.620 0.000
O5 1.325 0.458 0.000
H6 -1.837 -0.680 0.000
H7 1.535 -0.486 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52821.20192.38162.39891.09632.2944
C21.52822.38091.19431.32992.22671.8672
O31.20192.38093.44622.69262.02932.1310
O42.38161.19433.44622.23462.61842.9871
O52.39891.32992.69262.23463.36050.9672
H61.09632.22672.02932.61843.36053.3775
H72.29441.86722.13102.98710.96723.3775

picture of oxo acetic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.562 C1 C2 O5 113.961
C2 C1 O3 120.946 C2 C1 H6 115.097
C2 O5 H7 107.705 O3 C1 H6 123.957
O4 C2 O5 124.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability