Pure rotational spectrum of the 'non-polar' dimer of formic acid
Li, Weixing
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https://hdl.handle.net/2142/97172
Description
Title
Pure rotational spectrum of the 'non-polar' dimer of formic acid
Author(s)
Li, Weixing
Contributor(s)
Caminati, Walther
Meyer, Rolf
Gou, Qian
Evangelisti, Luca
Issue Date
2017-06-23
Keyword(s)
(Hyper)fine structure
Tunneling
Abstract
The rotational spectra of three deuterated isotopologues of the dimer of formic acid have been measured, thank to the small dipole moment induced by asymmetric H --textgreater D substitution(s). For the HCOOH-DCOOH species the concerted double proton transfer of the two hydroxyl hydrogens takes place between two equivalent minima and generates a tunneling splitting of 331.2(6) MHz. From this splitting a barrier to proton tunneling of about 30 kJ/mol has been estimated._x000d_
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