title: Synthesis and characterization of new platinum(II) and platinum(IV) triphyrin complexes.
abstract: Metalation of 6,13,20,21-tetrakis(4-methylphenyl)-22H-tribenzo[14]triphyrin(2.1.1) with PtCl(2) gave a platinum(II) complex having a square-planar coordination structure with two pyrrolic nitrogen atoms and two chloride ions, with a saddle-shaped macrocycle. This platinum(II) complex was easily oxidized by air to an octahedral platinum(IV) complex coordinated by three pyrrolic nitrogen atoms as a tridentate monoanionic cyclic ligand and three chloride ions. When platinum(II) triphyrin was crystallized in air, an oxygen atom was incorporated between two α-carbon atoms of the pyrroles as an oxygen bridge to intercept the 14π aromatic system.
authors: Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma 630-0192, Japan.
authors: Zhaoli
authors: Z
authors: Xue
authors: Daiki
authors: D
authors: Kuzuhara
authors: Shinya
authors: S
authors: Ikeda
authors: Tetsuo
authors: T
authors: Okujima
authors: Shigeki
authors: S
authors: Mori
authors: Hidemitsu
authors: H
authors: Uno
authors: Hiroko
authors: H
authors: Yamada