First cyano-bridged coordination polymers based on N,N’-chelated Ag(I) ions and octahedral rhenium(III) chalcocyanide clusters exhibiting unusually long-lived photoluminescence

Andrey V. Ermolaev, Anton I. Smolentsev, Konstantin A. Brylev, Noboru Kitamura, Yuri V. Mironov

Результат исследования: Научные публикации в периодических изданияхстатья

3 Цитирования (Scopus)

Аннотация

First examples of Ag(I)-containing coordination polymers based on octahedral rhenium(III) chalcocyanide clusters, namely [{Ag(bpy)}{Ag4(bpy)4(μ-CN)}{Re6Q8(CN)6}] (Q = S in 1 or Se in 2; bpy = 2,2′-bipyridine), have been hydrothermally synthesized and characterized by single-crystal X-ray diffraction, elemental and thermogravimetric analysis, EDS, IR and luminescence spectroscopy. The compounds are isostructural, crystallize in the orthorhombic system (space group Pccn, Z = 4) and possess a rigid 3D framework structure built up from {Re6Q8(CN)6}4– cluster anions and two distinct types of Ag(I)-containing cationic units, mononuclear {Ag(bpy)}+ and tetranuclear {Ag4(bpy)4(μ-CN)}3+, all of which are interconnected through cyanide bridging. The supramolecular structures of 1 and 2 are supported by argentophilic Ag⋯Ag interactions, but surprisingly show very limited π-π stacking of the pyridine rings. Both compounds are highly emissive in red region showing the longest lifetimes hitherto reported for the solid samples of hexarhenium cluster compounds.

Язык оригиналаанглийский
Страницы (с-по)627-634
Число страниц8
ЖурналJournal of Molecular Structure
Том1173
DOI
СостояниеОпубликовано - 5 дек 2018

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