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

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-301.379703
Energy at 298.15K-301.382960
HF Energy-301.379703
Nuclear repulsion energy161.530123
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 B3LYP/3-21G
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' 3335 3218 57.18      
2 A' 3061 2953 42.08      
3 A' 1818 1754 105.71      
4 A' 1705 1645 41.64      
5 A' 1365 1317 63.46      
6 A' 1340 1293 297.54      
7 A' 1169 1128 5.34      
8 A' 844 814 48.28      
9 A' 683 659 10.56      
10 A' 492 474 3.01      
11 A' 291 280 39.63      
12 A" 1054 1017 5.51      
13 A" 732 706 123.09      
14 A" 600 579 24.78      
15 A" 235 226 18.17      

Unscaled Zero Point Vibrational Energy (zpe) 9361.1 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 9032.5 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 B3LYP/3-21G
ABC
0.36285 0.15135 0.10680

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.780 -0.723 0.000
C2 0.000 0.591 0.000
O3 -0.182 -1.801 0.000
O4 -0.529 1.690 0.000
O5 1.345 0.363 0.000
H6 -1.869 -0.601 0.000
H7 1.475 -0.634 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52791.23302.42582.38671.09592.2564
C21.52792.39881.21981.36432.21681.9174
O31.23302.39883.50812.64862.07062.0258
O42.42581.21983.50812.29642.65413.0690
O52.38671.36432.64862.29643.35591.0062
H61.09592.21682.07062.65413.35593.3440
H72.25641.91742.02583.06901.00623.3440

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 123.592 C1 C2 O5 111.094
C2 C1 O3 120.270 C2 C1 H6 114.316
C2 O5 H7 106.997 O3 C1 H6 125.414
O4 C2 O5 125.314
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.190      
2 C 0.604      
3 O -0.403      
4 O -0.444      
5 O -0.549      
6 H 0.225      
7 H 0.376      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.671 -2.108 0.000 2.212
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.962 -0.614 0.000
y -0.614 -35.526 0.000
z 0.000 0.000 -26.100
Traceless
 xyz
x 4.851 -0.614 0.000
y -0.614 -9.495 0.000
z 0.000 0.000 4.644
Polar
3z2-r29.289
x2-y29.564
xy-0.614
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.222 -0.809 0.000
y -0.809 4.840 0.000
z 0.000 0.000 1.477


<r2> (average value of r2) Å2
<r2> 100.380
(<r2>)1/2 10.019