title: Tetragonal phase of 6-oxoverdazyl bent-core derivatives with photoinduced ambipolar charge transport and electrooptical effects.
abstract: Bent-core mesogens containing 6-oxoverdazyl radical as the angular central unit exhibit rich polymorphism that includes isotropic-isotropic transition, re-entant isotropic (I(re)), and a novel 3D tetragonal (Tet) phases. Surprisingly, the paramagnetic Tet phase interacts linearly with applied electric field and exhibits photoinduced ambipolar charge transport (μ ≈ 10(-3) cm(2) V(-1) s(-1)). Magnetic analysis showed gradual increase of antiferromagnetic interactions upon cooling.
authors.affiliation: Faculty of Chemistry, University of Łódź , Tamka 12, 91403 Łódź, Poland.
authors.forename: Marcin
authors.initials: M
authors.lastname: Jasiński
authors.forename: Damian
authors.initials: D
authors.lastname: Pociecha
authors.forename: Hirosato
authors.initials: H
authors.lastname: Monobe
authors.forename: Jacek
authors.initials: J
authors.lastname: Szczytko
authors.forename: Piotr
authors.initials: P
authors.lastname: Kaszyński