title: Charge ordering and carrier generation by air oxidation of a nickel complex with selenium-containing extended-tetrathiafulvalenedithiolate ligands.
abstract: The structures and electrical properties of ((n)Bu(4)N)[Ni(dmstfdt)(2)] (1), ((n)Bu(4)N)(2)[Ni(dmstfdt)(2)] (2), and ((n)Bu(4)N)(3)[Ni(dmstfdt)(2)](2) (3), where dmstfdt = extended-tetrathiafulvalenedithiolate ligand, were examined. The fresh crystal of 1 was found to be a Mott insulator, but the crystal gradually became highly conducting because of air oxidation. Compound 3 exhibited a semiconducting charge-ordering state.
authors.affiliation: Department of Chemistry, College of Humanities and Sciences, Nihon University, Sakurajosui 3-25-40, Tokyo 156-8550, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yajima
authors.forename: Biao
authors.initials: B
authors.lastname: Zhou
authors.forename: Emiko
authors.initials: E
authors.lastname: Fujiwara
authors.forename: Akiko
authors.initials: A
authors.lastname: Kobayashi
authors.forename: Hayao
authors.initials: H
authors.lastname: Kobayashi