Structure of the Monomer of Formic Acid

Abstract

The structure of the monomer of formic acid was determined by the sector-microphotometer method in electron diffraction. The equilibrium distances are C=O = 1.23±0.01A, C–O = 1.36±0.01A, O–O = 2.27 ±0.005A, and angle OCO = 122.4°±1°. The average displacements from equilibrium due to the molecular vibrations are listed in Table I.