title: Thermal hysteresis in dithiadiazolyl and dithiazolyl radicals induced by supercooling of paramagnetic liquids close to room temperature: a study of F3CCNSSN and an interpretation of the behaviour of F3CCSNSCCF3.
abstract: The trifluoromethyl-substituted dithiadiazolyl and dithiazolyl radicals, F3CCNSSN (1) and F3CCSNSCCF3 (2) associate through pi*-pi* covalent and electrostatic S delta+...N delta- interactions in the solid state, but melt with a dramatic volume increase to generate paramagnetic liquids; these radicals exhibit thermal hysteresis, which arises through a meta-stable super-cooled liquid state, close to room temperature.
authors.affiliation: Department of Chemistry, University of New Brunswick, Fredericton, New Brunswick, Canada E3B 6E2.
authors.forename: Hongbin
authors.initials: H
authors.lastname: Du
authors.forename: Robert C
authors.initials: RC
authors.lastname: Haddon
authors.forename: Ingo
authors.initials: I
authors.lastname: Krossing
authors.forename: Jack
authors.initials: J
authors.lastname: Passmore
authors.forename: Jeremy M
authors.initials: JM
authors.lastname: Rawson
authors.forename: Melbourne J
authors.initials: MJ
authors.lastname: Schriver