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

using model chemistry: B1B95/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-303.086108
Energy at 298.15K-303.089262
HF Energy-303.086108
Nuclear repulsion energy164.110709
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 B1B95/TZVP
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' 3701 3542 112.56      
2 A' 3038 2907 37.08      
3 A' 1893 1812 229.82      
4 A' 1841 1761 122.18      
5 A' 1387 1327 320.00      
6 A' 1360 1301 28.72      
7 A' 1220 1167 11.75      
8 A' 895 857 48.19      
9 A' 691 661 15.15      
10 A' 505 483 5.84      
11 A' 282 269 35.60      
12 A" 1007 963 3.27      
13 A" 688 659 90.59      
14 A" 574 550 38.48      
15 A" 169 162 28.96      

Unscaled Zero Point Vibrational Energy (zpe) 9625.3 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 9210.5 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 B1B95/TZVP
ABC
0.37182 0.15508 0.10944

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.745 -0.754 0.000
C2 0.000 0.581 0.000
O3 -0.142 -1.789 0.000
O4 -0.577 1.626 0.000
O5 1.319 0.442 0.000
H6 -1.842 -0.683 0.000
H7 1.512 -0.510 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7
C11.52921.19842.38572.38541.09892.2707
C21.52922.37491.19311.32592.23401.8647
O31.19842.37493.44272.66682.02842.0912
O42.38571.19313.44272.23462.63252.9873
O52.38541.32592.66682.23463.35470.9712
H61.09892.23402.02842.63253.35473.3586
H72.27071.86472.09122.98730.97123.3586

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 121.922 C1 C2 O5 113.140
C2 C1 O3 120.592 C2 C1 H6 115.458
C2 O5 H7 107.530 O3 C1 H6 123.950
O4 C2 O5 124.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.131      
2 C 0.231      
3 O -0.275      
4 O -0.271      
5 O -0.239      
6 H 0.124      
7 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.375 -2.025 0.000 2.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.638 0.103 0.000
y 0.103 -36.444 0.000
z 0.000 0.000 -26.393
Traceless
 xyz
x 5.780 0.103 0.000
y 0.103 -10.428 0.000
z 0.000 0.000 4.648
Polar
3z2-r29.296
x2-y210.805
xy0.103
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.088 -0.780 0.000
y -0.780 5.778 0.000
z 0.000 0.000 2.662


<r2> (average value of r2) Å2
<r2> 98.649
(<r2>)1/2 9.932