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

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-303.017406
Energy at 298.15K-303.020441
HF Energy-303.017406
Nuclear repulsion energy161.117411
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 BLYP/6-31G*
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' 3389 3361 64.69      
2 A' 2927 2903 61.39      
3 A' 1780 1765 146.57      
4 A' 1716 1702 61.72      
5 A' 1351 1340 333.83      
6 A' 1320 1309 6.60      
7 A' 1164 1155 0.67      
8 A' 840 834 45.06      
9 A' 661 655 11.77      
10 A' 475 471 4.27      
11 A' 280 278 32.62      
12 A" 956 949 1.47      
13 A" 710 704 83.63      
14 A" 536 532 22.35      
15 A" 172 171 21.44      

Unscaled Zero Point Vibrational Energy (zpe) 9138.3 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 9064.3 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 BLYP/6-31G*
ABC
0.35934 0.14965 0.10565

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.746 -0.769 0.000
C2 0.000 0.594 0.000
O3 -0.150 -1.833 0.000
O4 -0.592 1.655 0.000
O5 1.340 0.459 0.000
H6 -1.856 -0.681 0.000
H7 1.546 -0.504 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.55371.21942.42872.42001.11442.3069
C21.55372.43151.21491.34652.25171.8964
O31.21942.43153.51572.73312.05962.1542
O42.42871.21493.51572.27222.65543.0387
O52.42001.34652.73312.27223.39310.9849
H61.11442.25172.05962.65543.39313.4071
H72.30691.89642.15423.03870.98493.4071

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 122.147 C1 C2 O5 112.914
C2 C1 O3 122.060 C2 C1 H6 114.110
C2 O5 H7 107.857 O3 C1 H6 123.830
O4 C2 O5 124.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.185      
2 C 0.515      
3 O -0.344      
4 O -0.395      
5 O -0.513      
6 H 0.145      
7 H 0.405      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.298 -1.866 0.000 1.889
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.485 -0.134 0.000
y -0.134 -34.973 0.000
z 0.000 0.000 -26.092
Traceless
 xyz
x 5.047 -0.134 0.000
y -0.134 -9.184 0.000
z 0.000 0.000 4.137
Polar
3z2-r28.274
x2-y29.488
xy-0.134
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.994 -0.652 0.000
y -0.652 5.524 0.000
z 0.000 0.000 2.119


<r2> (average value of r2) Å2
<r2> 101.060
(<r2>)1/2 10.053