title: Different structural preference of Ag(I) and Au(I) in neutral and cationic luminescent heteropolynuclear platinum(II) complexes: Z (U)-shaped Pt2M2 type vs. trinuclear PtM2 type.
abstract: The reactions of monocationic Pt(II) complexes bearing N^C chelate ligands and Me2pzH, [Pt(N^C)(Me2pzH)2]PF6 (N^C = 2-phenylpyridinate (ppy(-)), 2-(2,4-difluorophenyl)pyridinate (dfppy(-)), benzo[h]quinolinate (bzq(-)); Me2pzH = 3,5-dimethylpyrazole), with Ag(I) ions gave Z (or U)-shaped neutral tetranuclear Pt2Ag2 complexes [Pt2Ag2(N^C)2(Me2pz)4], while those with Au(I) ions gave neutral trinuclear PtAu2 complexes [PtAu2(N^C)(Me2pz)3]. On the contrary, the reactions of the dicationic Pt(II) complex bearing a N^N chelate ligand and Me2pzH, [Pt(bpy)(Me2pzH)2](PF6)2 (bpy = 2,2'-bipyridine), with Ag(I) and Au(I) ions both gave Z (or U)-shaped dicationic tetranuclear Pt2M2 complexes, [Pt2M2(bpy)2(Me2pz)4](PF6)2 (M = Ag, Au). The structures of heteropolynuclear Pt(II) complexes were dominated by the nature of incorporated group 11 metal ions and the charge of complexes.
authors.affiliation: Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan. kumks@nagasaki-u.ac.jp.
authors.forename: Kazuki
authors.initials: K
authors.lastname: Nishihara
authors.affiliation: Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan. kumks@nagasaki-u.ac.jp.
authors.forename: Misa
authors.initials: M
authors.lastname: Ueda
authors.affiliation: Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan. kumks@nagasaki-u.ac.jp.
authors.forename: Ami
authors.initials: A
authors.lastname: Higashitani
authors.affiliation: Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Kyushu Sangyo University, Matsukadai, Higashi-ku, Fukuoka 813-8503, Japan.
authors.forename: Yoshihide
authors.initials: Y
authors.lastname: Nakao
authors.affiliation: Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan. kumks@nagasaki-u.ac.jp.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Arikawa
authors.affiliation: Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan. kumks@nagasaki-u.ac.jp.
authors.forename: Shinnosuke
authors.initials: S
authors.lastname: Horiuchi
authors.affiliation: Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan. kumks@nagasaki-u.ac.jp.
authors.forename: Eri
authors.initials: E
authors.lastname: Sakuda
authors.affiliation: Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan. kumks@nagasaki-u.ac.jp.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Umakoshi