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Listing of experimental geometry data for C2H4O4 (Formic acid dimer)

No experimental rotational constants available.
Calculated rotational constants for C2H4O4 (Formic acid dimer).

Point Group C2h

Internal coordinates

(distances (r) in Å) (angles (a) in degrees) (dihedrals (d) in degrees)
Description Value Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCO 1.217 1 3 1998Kuc
rCO 1.320 1 5 1998Kuc
rOH 1.033 5 19 1998Kuc
rOO 2.696 3 6 1998Kuc
rOO 2.262 3 5 1998Kuc
aOCO 126.2 3 1 5 1998Kuc
aCOO 108.5 1 5 4 1998Kuc
picture of Formic acid dimer

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 2
C-O 2
C=O 2
H-O 2
H..O 2
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances (Å)
 

Calculated geometries for C2H4O4 (Formic acid dimer).
References
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squib reference DOI
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998 10.1007/978-3-642-45748-7 

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