Add time:08/01/2019         Source:sciencedirect.com

Infrared absorption spectra of formic acid clusters (HCOOH)n have been observed in noble gas matrices (Ar, Kr and Xe). The concentration dependence of the spectra and a comparison with the assigned monomeric/dimeric bands has led to the assignment of polymeric species (HCOOH)n (n > 2). From comparisons of these spectra with several sets of DFT calculations, we concluded that the observed polymeric species can be assigned to stable isomers of (HCOOH)3.

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