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All results from a given calculation for C3H4O2 (Methyl glyoxal)

using model chemistry: M06-2X/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-311G*
 hartrees
Energy at 0K-267.105900
Energy at 298.15K-267.110078
HF Energy-267.105900
Nuclear repulsion energy160.501983
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 M06-2X/6-311G*
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' 3185 3185 2.75      
2 A' 3082 3082 0.17      
3 A' 3025 3025 73.32      
4 A' 1890 1890 27.08      
5 A' 1877 1877 222.74      
6 A' 1483 1483 18.86      
7 A' 1417 1417 44.91      
8 A' 1378 1378 3.92      
9 A' 1269 1269 20.91      
10 A' 1021 1021 4.23      
11 A' 801 801 11.74      
12 A' 583 583 12.76      
13 A' 490 490 28.84      
14 A' 251 251 17.16      
15 A" 3154 3154 1.73      
16 A" 1478 1478 12.94      
17 A" 1091 1091 3.82      
18 A" 924 924 0.40      
19 A" 483 483 0.14      
20 A" 157 157 18.20      
21 A" 105 105 4.73      

Unscaled Zero Point Vibrational Energy (zpe) 14571.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14571.1 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 M06-2X/6-311G*
ABC
0.30515 0.14945 0.10219

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.846 -0.724 0.000
C2 0.000 0.557 0.000
C3 1.490 0.376 0.000
O4 -0.361 -1.818 0.000
O5 -0.576 1.611 0.000
H6 -1.937 -0.542 0.000
H7 1.980 1.347 0.000
H8 1.794 -0.203 0.875
H9 1.794 -0.203 -0.875

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9
C11.53512.58181.19622.35101.10653.50342.82902.8290
C21.53511.50102.40201.20162.22712.13172.13572.1357
C32.58181.50102.87022.40753.54791.08771.09231.0923
O41.19622.40202.87023.43592.02783.93642.83092.8309
O52.35101.20162.40753.43592.54722.56983.11073.1107
H61.10652.22713.54792.02782.54724.34873.84703.8470
H73.50342.13171.08773.93642.56984.34871.79001.7900
H82.82902.13571.09232.83093.11073.84701.79001.7495
H92.82902.13571.09232.83093.11073.84701.79001.7495

picture of Methyl glyoxal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 116.499 C1 C2 O5 117.914
C2 C1 O4 122.666 C2 C1 H6 113.944
C2 C3 H7 109.842 C2 C3 H8 109.880
C2 C3 H9 109.880 C3 C2 O5 125.587
O4 C1 H6 123.389 H7 C3 H8 110.385
H7 C3 H9 110.385 H8 C3 H9 106.416
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.057      
2 C 0.249      
3 C -0.744      
4 O -0.275      
5 O -0.288      
6 H 0.214      
7 H 0.262      
8 H 0.262      
9 H 0.262      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.851 -0.077 0.000 0.855
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.182 2.080 0.000
y 2.080 -37.795 0.000
z 0.000 0.000 -27.502
Traceless
 xyz
x 6.467 2.080 0.000
y 2.080 -10.953 0.000
z 0.000 0.000 4.486
Polar
3z2-r28.972
x2-y211.614
xy2.080
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.863 -0.450 0.000
y -0.450 6.309 0.000
z 0.000 0.000 3.466


<r2> (average value of r2) Å2
<r2> 111.247
(<r2>)1/2 10.547