title: Influence of π-Iodide Intermolecular Interactions on Electronic Properties of Tin(IV) Iodide Semiconducting Complexes.
abstract: Coordination compounds with a tin center surrounded by both organic and inorganic ligands ([SnI4{(C6H5)3PO}2], [SnI4{(C6H5)2SO}2], and [SnI4(C5H5NO)2]) acting as molecular semiconductors are in the spotlight of this article. This is a new class of hybrid semiconducting materials where optoelectronic properties of inorganic core (SnI4) were tuned by organic ligands. The valence band is located at the inorganic portion of the molecule while the conduction band is made of carbon-based orbitals. This suggests the great importance of hydrogen bonds where iodine atoms play the role of an acceptor. Weak intermolecular interactions between iodine atoms and aromatic rings are essential in a band structure formation. These materials form orange-red crystals soluble in most of organic solvents. Their semiconducting properties are addressed experimentally via photovoltage measurements, as well as theoretically, using DFT and semiempirical approaches.
authors.affiliation: Faculty of Chemistry, Jagiellonian University , ul. R. Ingardena 3, 30-060 Kraków, Poland.|AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology , al. A. Mickiewicza 30, 30-059 Kraków, Poland.
authors.forename: Ewelina
authors.initials: E
authors.lastname: Wlaźlak
authors.affiliation: Faculty of Chemistry, Jagiellonian University , ul. R. Ingardena 3, 30-060 Kraków, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Macyk
authors.affiliation: Faculty of Chemistry, Jagiellonian University , ul. R. Ingardena 3, 30-060 Kraków, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Nitek
authors.affiliation: AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology , al. A. Mickiewicza 30, 30-059 Kraków, Poland.
authors.forename: Konrad
authors.initials: K
authors.lastname: Szaciłowski