{"title":"Fluorosolvatochromism of Platinum Supramolecular Coordination Complexes: Stepwise Synthesis and Photophysical Properties of Organometallic Tetranuclear Pt(II) Squares","authors":"Antonia Garypidou, K. Ypsilantis, A. Garoufis","doi":"10.3390/inorganics12050132","DOIUrl":null,"url":null,"abstract":"The stepwise synthesis and characterization of three new mixed-ligand organometallic tetranuclear platinum squares were achieved. All of the complexes were constituted by the conjunction of two (2,2′-bpy)Pt-terph-Pt(2,2′-bpy) (terph = p-terphenyl) fragments linked by a variety of N^N ligands (4,4′-bipyridine (4,4′-bpy), 1,4-di(pyridin-4-yl)benzene (dpbz), and 4,4′-di(pyridin-4-yl)-1,1′-biphenyl (dpbph)), which occupied the fourth coordination site of each metal center, giving rise to square-shaped molecules of the general formula [Pt2(2,2′-bpy)2(terph)(N^N)]2. Consequently, the tetranuclear complexes, {[Pt(2,2′-bpy)]4(μ-terph)2(μ-4,4′-bpy)2}{PF6}4 (7), {[Pt(2,2′-bpy)]4(μ-terph)2(μ-dpbz)2}{PF6}4 (8), and {[Pt(2,2′-bpy)]4(μ-terph)2(μ-dpbph)2}{PF6}4 (9) were constructed. The photophysical properties of these complexes were studied both in the solid state and in various solvents, revealing fluorosolvatochromism.","PeriodicalId":507601,"journal":{"name":"Inorganics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/inorganics12050132","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The stepwise synthesis and characterization of three new mixed-ligand organometallic tetranuclear platinum squares were achieved. All of the complexes were constituted by the conjunction of two (2,2′-bpy)Pt-terph-Pt(2,2′-bpy) (terph = p-terphenyl) fragments linked by a variety of N^N ligands (4,4′-bipyridine (4,4′-bpy), 1,4-di(pyridin-4-yl)benzene (dpbz), and 4,4′-di(pyridin-4-yl)-1,1′-biphenyl (dpbph)), which occupied the fourth coordination site of each metal center, giving rise to square-shaped molecules of the general formula [Pt2(2,2′-bpy)2(terph)(N^N)]2. Consequently, the tetranuclear complexes, {[Pt(2,2′-bpy)]4(μ-terph)2(μ-4,4′-bpy)2}{PF6}4 (7), {[Pt(2,2′-bpy)]4(μ-terph)2(μ-dpbz)2}{PF6}4 (8), and {[Pt(2,2′-bpy)]4(μ-terph)2(μ-dpbph)2}{PF6}4 (9) were constructed. The photophysical properties of these complexes were studied both in the solid state and in various solvents, revealing fluorosolvatochromism.