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

using model chemistry: TPSSh/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 TPSSh/cc-pVTZ
 hartrees
Energy at 0K-303.192836
Energy at 298.15K-303.195975
HF Energy-303.192836
Nuclear repulsion energy163.245891
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/cc-pVTZ
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' 3587 3473 91.35      
2 A' 2997 2902 46.79      
3 A' 1832 1774 201.45      
4 A' 1773 1717 89.43      
5 A' 1371 1327 322.28      
6 A' 1347 1305 23.91      
7 A' 1205 1167 3.23      
8 A' 877 850 48.28      
9 A' 679 657 13.40      
10 A' 492 476 5.25      
11 A' 275 266 35.97      
12 A" 1012 980 3.06      
13 A" 713 690 78.51      
14 A" 570 552 19.95      
15 A" 172 167 25.39      

Unscaled Zero Point Vibrational Energy (zpe) 9450.7 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 9151.1 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 TPSSh/cc-pVTZ
ABC
0.36882 0.15361 0.10844

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.743 -0.759 0.000
C2 0.000 0.586 0.000
O3 -0.148 -1.807 0.000
O4 -0.580 1.636 0.000
O5 1.325 0.448 0.000
H6 -1.842 -0.676 0.000
H7 1.521 -0.504 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53631.20452.40122.39421.10272.2775
C21.53632.39711.20001.33192.23271.8710
O31.20452.39713.47032.69352.03682.1168
O42.40121.20003.47032.24472.63452.9991
O52.39421.33192.69352.24473.36050.9727
H61.10272.23272.03682.63453.36053.3671
H72.27751.87102.11682.99910.97273.3671

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 122.212 C1 C2 O5 112.985
C2 C1 O3 121.521 C2 C1 H6 114.571
C2 O5 H7 107.536 O3 C1 H6 123.908
O4 C2 O5 124.804
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.157      
2 C 0.241      
3 O -0.242      
4 O -0.261      
5 O -0.203      
6 H 0.084      
7 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.335 -1.862 0.000 1.892
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.284 -0.591 0.000
y -0.591 5.939 0.000
z 0.000 0.000 2.805


<r2> (average value of r2) Å2
<r2> 99.092
(<r2>)1/2 9.954