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All results from a given calculation for HOCH2COOH (Hydroxyacetic acid)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-302.268578
Energy at 298.15K-302.274156
HF Energy-302.268578
Nuclear repulsion energy176.678995
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/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' 3334 3304 10.65      
2 A' 3214 3185 39.45      
3 A' 2930 2903 28.31      
4 A' 1698 1683 125.06      
5 A' 1504 1491 8.92      
6 A' 1453 1440 83.26      
7 A' 1349 1336 83.63      
8 A' 1279 1267 29.77      
9 A' 1083 1073 159.36      
10 A' 1018 1009 137.73      
11 A' 816 809 39.59      
12 A' 616 611 11.86      
13 A' 449 444 32.93      
14 A' 266 264 10.15      
15 A" 2942 2915 32.46      
16 A" 1188 1177 5.04      
17 A" 1036 1026 0.96      
18 A" 655 649 152.29      
19 A" 506 501 4.40      
20 A" 379 376 77.53      
21 A" 97 96 10.11      

Unscaled Zero Point Vibrational Energy (zpe) 13906.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 13779.5 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/3-21G
ABC
0.34131 0.13292 0.09744

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.638 -0.863 0.000
C2 0.000 0.518 0.000
O3 -0.933 1.529 0.000
O4 1.231 0.693 0.000
O5 0.403 -1.866 0.000
H6 -1.295 -0.934 0.892
H7 -1.295 -0.934 -0.892
H8 1.255 -1.311 0.000
H9 -0.438 2.409 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 O5 H6 H7 H8 H9
C11.52162.41032.43191.44511.11041.11041.94513.2790
C21.52161.37571.24322.41772.14072.14072.21811.9415
O32.41031.37572.31993.64812.64452.64453.58491.0105
O42.43191.24322.31992.68943.13443.13442.00392.3941
O51.44512.41773.64812.68942.13242.13241.01704.3573
H61.11042.14072.64453.13442.13241.78422.72793.5653
H71.11042.14072.64453.13442.13241.78422.72793.5653
H81.94512.21813.58492.00391.01702.72792.72794.0874
H93.27901.94151.01052.39414.35733.56533.56534.0874

picture of Hydroxyacetic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 112.492 C1 C2 O4 122.873
C1 O5 H8 102.995 C2 C1 O5 109.139
C2 C1 H6 107.827 C2 C1 H7 107.827
C2 O3 H9 107.929 O3 C2 O4 124.636
O5 C1 H6 112.462 O5 C1 H7 112.462
H6 C1 H7 106.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.219      
2 C 0.517      
3 O -0.504      
4 O -0.440      
5 O -0.528      
6 H 0.234      
7 H 0.234      
8 H 0.338      
9 H 0.369      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.958 2.622 0.000 2.791
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.290 -0.040 0.000
y -0.040 -28.404 0.000
z 0.000 0.000 -28.030
Traceless
 xyz
x -2.073 -0.040 0.000
y -0.040 0.757 0.000
z 0.000 0.000 1.317
Polar
3z2-r22.633
x2-y2-1.887
xy-0.040
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.022 -0.189 0.000
y -0.189 5.216 0.000
z 0.000 0.000 2.432


<r2> (average value of r2) Å2
<r2> 113.339
(<r2>)1/2 10.646