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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-302.892335
Energy at 298.15K-302.895526
HF Energy-302.892335
Nuclear repulsion energy164.064632
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 HSEh1PBE/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' 3682 3539 105.89      
2 A' 3016 2899 42.18      
3 A' 1887 1813 213.71      
4 A' 1831 1760 107.44      
5 A' 1402 1348 335.37      
6 A' 1348 1296 14.37      
7 A' 1235 1187 11.27      
8 A' 901 866 46.68      
9 A' 694 667 14.95      
10 A' 506 486 5.35      
11 A' 283 272 36.72      
12 A" 1028 988 3.25      
13 A" 708 681 80.42      
14 A" 586 563 24.43      
15 A" 174 167 26.35      

Unscaled Zero Point Vibrational Energy (zpe) 9640.1 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 9265.1 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 HSEh1PBE/cc-pVTZ
ABC
0.37193 0.15502 0.10942

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.743 -0.752 0.000
C2 0.000 0.582 0.000
O3 -0.141 -1.790 0.000
O4 -0.578 1.628 0.000
O5 1.319 0.439 0.000
H6 -1.842 -0.676 0.000
H7 1.500 -0.516 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52641.20002.38552.38111.10192.2550
C21.52642.37591.19521.32672.23091.8587
O31.20002.37593.44572.66472.03312.0773
O42.38551.19523.44572.23852.62862.9855
O52.38111.32672.66472.23853.35230.9722
H61.10192.23092.03312.62863.35233.3458
H72.25501.85872.07732.98550.97223.3458

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 121.973 C1 C2 O5 112.950
C2 C1 O3 120.778 C2 C1 H6 115.209
C2 O5 H7 106.888 O3 C1 H6 124.014
O4 C2 O5 125.077
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.127      
2 C 0.231      
3 O -0.232      
4 O -0.254      
5 O -0.192      
6 H 0.099      
7 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.270 -1.889 0.000 1.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.357 0.202 0.000
y 0.202 -35.642 0.000
z 0.000 0.000 -26.315
Traceless
 xyz
x 5.622 0.202 0.000
y 0.202 -9.806 0.000
z 0.000 0.000 4.184
Polar
3z2-r28.369
x2-y210.286
xy0.202
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.149 -0.603 0.000
y -0.603 5.754 0.000
z 0.000 0.000 2.784


<r2> (average value of r2) Å2
<r2> 98.402
(<r2>)1/2 9.920