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Compare Experimental Geometries - experimental data

Species Name
C2H2O4 Oxalic Acid
The following table lists the experimentally determined internal coordinates. Coordinate descriptions starting with "r" are bond lengths, starting with "a" are bond angles, and starting with "d" are dihedral angles. Atom numbers are the numbers on the picture of the molecule below to indicate which atoms are invloved in the bond or angle.
Units: bond lengths are in Å, angles are in degrees.
description Value Reference Comment Atom number
rCC 1.544 1976Hellwege(II/7)   1 2   
rCO 1.205 1976Hellwege(II/7)   1 5   
rCO 1.336 1976Hellwege(II/7)   1 3   
aCCO 123.1 1976Hellwege(II/7)   1 2 6  
aOCO 125.0 1976Hellwege(II/7)   3 1 5  
aHOC 104.4 1976Hellwege(II/7)   1 3 7  

picture of
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.