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

using model chemistry: M06-2X/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-267.080119
Energy at 298.15K-267.084283
HF Energy-267.080119
Nuclear repulsion energy160.127527
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/aug-cc-pVDZ
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' 3192 3192 2.54      
2 A' 3078 3078 0.14      
3 A' 3030 3030 60.59      
4 A' 1864 1864 39.29      
5 A' 1852 1852 220.08      
6 A' 1431 1431 17.12      
7 A' 1384 1384 44.32      
8 A' 1358 1358 2.80      
9 A' 1267 1267 12.66      
10 A' 1007 1007 5.06      
11 A' 807 807 11.10      
12 A' 578 578 12.57      
13 A' 488 488 29.92      
14 A' 249 249 17.85      
15 A" 3157 3157 1.01      
16 A" 1431 1431 10.68      
17 A" 1079 1079 4.17      
18 A" 907 907 0.21      
19 A" 477 477 0.24      
20 A" 146 146 10.86      
21 A" 109 109 14.58      

Unscaled Zero Point Vibrational Energy (zpe) 14444.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14444.9 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/aug-cc-pVDZ
ABC
0.30424 0.14888 0.10185

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.842 -0.730 0.000
C2 0.000 0.553 0.000
C3 1.491 0.394 0.000
O4 -0.347 -1.826 0.000
O5 -0.591 1.607 0.000
H6 -1.939 -0.554 0.000
H7 1.966 1.377 0.000
H8 1.792 -0.189 0.880
H9 1.792 -0.189 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9
C11.53492.58921.20232.35071.11093.51082.82962.8296
C21.53491.49922.40411.20842.23312.13182.13032.1303
C32.58921.49922.88122.40973.55821.09241.09761.0976
O41.20232.40412.88123.44162.03743.95052.83322.8332
O52.35071.20842.40973.44162.54742.56773.11173.1117
H61.11092.23313.55822.03742.54744.35673.85103.8510
H73.51082.13181.09243.95052.56774.35671.80481.8048
H82.82962.13031.09762.83323.11173.85101.80481.7592
H92.82962.13031.09762.83323.11173.85101.80481.7592

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 117.153 C1 C2 O5 117.443
C2 C1 O4 122.406 C2 C1 H6 114.174
C2 C3 H7 109.695 C2 C3 H8 109.270
C2 C3 H9 109.270 C3 C2 O5 125.404
O4 C1 H6 123.420 H7 C3 H8 111.005
H7 C3 H9 111.005 H8 C3 H9 106.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.873      
2 C 0.129      
3 C 0.686      
4 O -0.482      
5 O -0.502      
6 H -0.270      
7 H -0.253      
8 H -0.091      
9 H -0.091      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.975 -0.080 0.000 0.978
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.085 2.429 0.000
y 2.429 -38.361 0.000
z 0.000 0.000 -27.679
Traceless
 xyz
x 6.935 2.429 0.000
y 2.429 -11.479 0.000
z 0.000 0.000 4.544
Polar
3z2-r29.089
x2-y212.276
xy2.429
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.907 -0.379 0.000
y -0.379 7.371 0.000
z 0.000 0.000 4.498


<r2> (average value of r2) Å2
<r2> 111.691
(<r2>)1/2 10.568