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

using model chemistry: CCSD=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-266.770910
Energy at 298.15K 
HF Energy-265.739438
Nuclear repulsion energy160.904818
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 CCSD=FULL/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.838 -0.720 0.000
C2 0.000 0.549 0.000
C3 1.484 0.383 0.000
O4 -0.358 -1.820 0.000
O5 -0.579 1.606 0.000
H6 -1.918 -0.536 0.000
H7 1.961 1.354 0.000
H8 1.787 -0.190 0.872
H9 1.787 -0.190 -0.872

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9
C11.52052.57051.20032.34001.09533.48372.81632.8163
C21.52051.49332.39571.20512.20312.12002.12142.1214
C32.57051.49332.87132.39823.52351.08201.08641.0864
O41.20032.39572.87133.43282.02063.93092.83122.8312
O52.34001.20512.39823.43282.52542.55263.09593.0959
H61.09532.20313.52352.02062.52544.31463.82173.8217
H73.48372.12001.08203.93092.55264.31461.78201.7820
H82.81632.12141.08642.83123.09593.82171.78201.7433
H92.81632.12141.08642.83123.09593.82171.78201.7433

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 117.062 C1 C2 O5 117.839
C2 C1 O4 122.974 C2 C1 H6 113.760
C2 C3 H7 109.784 C2 C3 H8 109.633
C2 C3 H9 109.633 C3 C2 O5 125.099
O4 C1 H6 123.267 H7 C3 H8 110.522
H7 C3 H9 110.522 H8 C3 H9 106.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability