Heterotri‐ and Heteropentanuclear Copper(I)–Ferrocenyl Complexes Assembled through a "Click" Strategy: A Structural, Electrochemical, and Spectroelectrochemical Investigation. Issue 2 (25th November 2016)

• Record Type: Journal Article
• Authors: Manck, Sinja; Röger, Marc; van der Meer, Margarethe; Sarkar, Biprajit
• Other Names: Štěpnička Petr guestEditor.
• Is Part Of: European journal of inorganic chemistry. Issue 2(2017)
• Page Start: 477
• Page End: 482
• Publication Date: 2016-11-25
• Subjects: Triazoles -- Ferrocenes -- Copper -- Click chemistry -- Electrochemistry; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201601075
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : The ferrocene moiety with its well‐defined redox behavior and its substitution potential is ideally suited for the assembly of multinuclear complexes. Utilizing the "click" strategy, we present here mono‐ and disubstituted pyridyl–triazolyl–ferrocene units. The "pyridyl–triazolyl" chelating pocket is then used to chelate to copper(I) centers that additionally contain dppf [dppf = 1, 1′‐(diphenylphosphino)ferrocene], which has an additional ferrocene moiety. This strategy delivers a heterotrinuclear (Fe–Cu–Fe) and a heteropentanuclear (Fe–Cu–Fe–Cu–Fe) complex. All complexes were characterized by 1 H and 13 C NMR spectroscopy and by mass spectrometry, and the heteropentanuclear complex was characterized by single‐crystal X‐ray diffraction. Electrochemistry and UV/Vis/NIR spectroelectrochemistry were used to investigate the redox properties of the complexes and to determine the site of electron transfer. The results presented here show the potential of "click"‐derived ligands in generating heteromultinuclear assemblies and the potential of ferrocene to function as a rigid, redox‐active unit in these assemblies. Abstract : The metalloligand pyridyl–triazolyl–ferrocene derived through a "click" strategy is combined with Cu–dppf to obtain heteromultinuclear complexes containing multiple redox‐active centers.