title: Photoluminescence properties of a cationic trinuclear zinc(II) complex with the tetradentate Schiff base ligand 6-methyl-2-({[(pyridin-2-yl)methyl]imino}methyl)phenolate.
abstract: Metal complexes with Schiff base ligands have been suggested as potential phosphors in electroluminescent devices. In the title complex, tetrakis[6-methyl-2-({[(pyridin-2-yl)methyl]imino}methyl)phenolato-1:2κ(8)N,N',O:O;3:2κ(8)N,N',O:O]trizinc(II) hexafluoridophosphate methanol monosolvate, [Zn3(C14H13N2O)4](PF6)2·CH3OH, the Zn(II) cations adopt both six- and four-coordinate geometries involving the N and O atoms of tetradentate 6-methyl-2-({[(pyridin-2-yl)methyl]imino}methyl)phenolate ligands. Two terminal Zn(II) cations adopt distorted octahedral geometries and the central Zn(II) cation adopts a distorted tetrahedral geometry. The O atoms of the phenolate ligands bridge three Zn(II) cations, forming a dicationic trinuclear metal cluster. The title complex exhibits a strong emission at 469 nm with a quantum yield of 15.5%.
authors.affiliation: Department of Chemistry Education and BK21 Plus Team for Advanced Chemical Materials, Pusan National University, Busan 609-735, Republic of Korea.
authors.forename: Young Inn
authors.initials: YI
authors.lastname: Kim
authors.affiliation: Department of Chemistry Education and BK21 Plus Team for Advanced Chemical Materials, Pusan National University, Busan 609-735, Republic of Korea.
authors.forename: Young Kwang
authors.initials: YK
authors.lastname: Song
authors.affiliation: Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea.
authors.forename: Daeyoung
authors.initials: D
authors.lastname: Kim
authors.affiliation: Department of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea.
authors.forename: Sung Kwon
authors.initials: SK
authors.lastname: Kang
keywords: Schiff base; crystal structure; dicationic trinuclear metal cluster; light-emitting electrochemical cells; organic light-emitting devices; photoluminescence properties; zinc(II) cluster