Sizing the Ubbelohde effect: the rotational spectrum of a tert-butylalcohol dimer

Abstract

The H → D isotopic substitution of the hydroxylic hydrogen participating in the O-H···O hydrogen bond in the tert-butylalcohol dimer produces an increase of the B and C rotational constants, according to the shrinkage of the OO distance of about 7 mÅ, underlying and sizing the associated Ubbelohde effect.