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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-302.780590
Energy at 298.15K-302.783716
HF Energy-302.780590
Nuclear repulsion energy162.111152
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 PBEPBE/cc-pVDZ
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' 3395 3376 102.11      
2 A' 2907 2890 59.69      
3 A' 1805 1794 161.44      
4 A' 1735 1725 74.19      
5 A' 1361 1353 316.86      
6 A' 1279 1272 4.94      
7 A' 1182 1175 1.27      
8 A' 862 857 39.74      
9 A' 669 665 10.96      
10 A' 480 478 3.86      
11 A' 279 278 35.93      
12 A" 971 965 1.84      
13 A" 741 736 72.95      
14 A" 559 556 13.58      
15 A" 183 182 18.74      

Unscaled Zero Point Vibrational Energy (zpe) 9203.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9150.5 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 PBEPBE/cc-pVDZ
ABC
0.36641 0.15150 0.10718

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.760 -0.745 0.000
C2 0.000 0.590 0.000
O3 -0.150 -1.804 0.000
O4 -0.560 1.669 0.000
O5 1.335 0.406 0.000
H6 -1.879 -0.665 0.000
H7 1.439 -0.584 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.53631.22192.42232.39001.12242.2050
C21.53632.39871.21551.34722.26001.8572
O31.22192.39873.49702.66232.07082.0034
O42.42231.21553.49702.27672.68123.0118
O52.39001.34722.66232.27673.38770.9955
H61.12242.26002.07082.68123.38773.3196
H72.20501.85722.00343.01180.99553.3196

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 122.930 C1 C2 O5 111.798
C2 C1 O3 120.408 C2 C1 H6 115.554
C2 O5 H7 103.880 O3 C1 H6 124.038
O4 C2 O5 125.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.143      
2 C 0.091      
3 O -0.151      
4 O -0.171      
5 O -0.104      
6 H 0.037      
7 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.304 -1.834 0.000 1.859
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.562 -0.051 0.000
y -0.051 -34.485 0.000
z 0.000 0.000 -26.121
Traceless
 xyz
x 4.741 -0.051 0.000
y -0.051 -8.643 0.000
z 0.000 0.000 3.903
Polar
3z2-r27.805
x2-y28.923
xy-0.051
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.078 -0.592 0.000
y -0.592 5.456 0.000
z 0.000 0.000 2.190


<r2> (average value of r2) Å2
<r2> 99.782
(<r2>)1/2 9.989