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 CHOCOOH (oxo acetic acid)

using model chemistry: B97D3/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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-303.026801
Energy at 298.15K-303.029842
HF Energy-303.026801
Nuclear repulsion energy162.278778
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 B97D3/aug-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' 3550 3496 81.31      
2 A' 2924 2880 56.11      
3 A' 1778 1751 224.83      
4 A' 1732 1705 73.42      
5 A' 1328 1308 275.77      
6 A' 1321 1301 45.59      
7 A' 1170 1152 1.67      
8 A' 843 831 50.40      
9 A' 668 657 12.31      
10 A' 481 474 5.72      
11 A' 267 263 31.62      
12 A" 986 971 3.03      
13 A" 690 679 73.13      
14 A" 551 543 20.35      
15 A" 154 151 26.15      

Unscaled Zero Point Vibrational Energy (zpe) 9221.4 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 9080.3 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 B97D3/aug-cc-pVTZ
ABC
0.36340 0.15125 0.10680

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.749 -0.761 0.000
C2 0.000 0.585 0.000
O3 -0.155 -1.815 0.000
O4 -0.582 1.642 0.000
O5 1.338 0.453 0.000
H6 -1.852 -0.674 0.000
H7 1.530 -0.507 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.54041.21032.40832.41441.10692.2926
C21.54042.40551.20601.34492.24011.8795
O31.21032.40553.48322.71552.04522.1330
O42.40831.20603.48322.25832.64193.0123
O52.41441.34492.71552.25833.38400.9785
H61.10692.24012.04522.64193.38403.3862
H72.29261.87952.13303.01230.97853.3862

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 122.077 C1 C2 O5 113.432
C2 C1 O3 121.521 C2 C1 H6 114.613
C2 O5 H7 106.931 O3 C1 H6 123.866
O4 C2 O5 124.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.185      
2 C 0.592      
3 O -0.556      
4 O -0.505      
5 O -0.290      
6 H 0.348      
7 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.221 -1.802 0.000 1.815
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.796 0.249 0.000
y 0.249 -36.088 0.000
z 0.000 0.000 -26.617
Traceless
 xyz
x 5.556 0.249 0.000
y 0.249 -9.882 0.000
z 0.000 0.000 4.326
Polar
3z2-r28.651
x2-y210.292
xy0.249
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.147 -0.538 -0.001
y -0.538 6.814 0.000
z -0.001 0.000 3.586


<r2> (average value of r2) Å2
<r2> 100.593
(<r2>)1/2 10.030