Structures and photoluminescence of coinage metal(I) phenylpyrazolato trinuclear complexes [M(3,5-Et2-4-Ph-pz)]3 and arene sandwich complexes {[Ag(3,5-Et2-4-Ph-pz)]3}2(Ar) (Ar = mesitylene and toluene)

Kiyoshi Fujisawa, Mai Saotome, Soran Takeda, David James Young

Research output: Contribution to journalArticle

Abstract

The combination of 4-phenyl substituted pyrazolate ligand, LEt(Ph)H (4-phenyl-3,5-diethyl-1-pyrazole) with coinage metal(I) salts gave cyclic structures, [CuLEt(Ph)]3, {[AgLEt(Ph)]3}2, and [AuLEt(Ph)]3. Both [CuLEt(Ph)]3 and [AuLEt(Ph)]3 were trinuclear, while {[AgLEt(Ph)]3}2 was hexanuclear with two intermolecular argentophilic interactions. {[AgLEt(Ph)]3}2 formed arene-sandwiched, π acid/base complexes, {[AgLEt(Ph)]3}2(mesitylene) and {[AgLEt(Ph)]3}2(toluene). Photoluminescent spectra of the Cu(I) and Ag(I) complexes were dominated by closed shell d10-d10 M£M interactions, whereas those of the Au(I) complex exhibited ligand-based emissions.

Original languageEnglish
Pages (from-to)670-673
Number of pages4
JournalChemistry Letters
Volume49
Issue number6
DOIs
Publication statusPublished - 2020

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