Assembly of Heterometallic AuICu2I2Cores on the Scaffold of NPPN-Bridging Cyclic Bisphosphine

Irina R. Dayanova, Aliia V. Shamsieva, Igor D. Strelnik, Tatiana P. Gerasimova, Ilya E. Kolesnikov, Robert R. Fayzullin, Daut R. Islamov, Alina F. Saifina, Elvira I. Musina, Evamarie Hey-Hawkins, Andrey A. Karasik

    Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

    Аннотация

    The row of metallocyclic dinuclear gold(I) complexes with cyclic diphosphines, namely, P-pyridylethyl-substituted 1,5-diaza-3,7-diphosphacyclooctanes, has been obtained. Further interaction of the dinuclear gold(I) complexes with copper(I) iodide gave the first examples of hexanuclear AuI/CuI complexes containing two unusual trinuclear AuICu2I2 fragments. The structures of di- and hexanuclear complexes were confirmed by NMR spectroscopy, ESI mass spectrometry, elemental analysis, and single-crystal X-ray diffraction. All of the obtained complexes are moderate emitters in the solid state. Dinuclear gold(I) complexes displayed a greenish emission with the maxima in the emission spectra at ca. 550 nm. The obtained hexanuclear heterobimetallic AuI/CuI complexes are triplet solid-state blue emitters with the maximum in the emission spectra at 463 and 484 nm. According to the TD-DFT calculations, the observed emission of all studied complexes had a triplet origin and was caused by the 3CC or 3(MLCT) T1 → S0 transitions for dinuclear and hexanuclear complexes, respectively.

    Язык оригиналаанглийский
    Страницы (с-по)5402-5411
    Число страниц10
    ЖурналInorganic Chemistry
    Том60
    Номер выпуска7
    DOI
    СостояниеОпубликовано - 5 апр 2021

    Предметные области Scopus

    • Физическая и теоретическая химия
    • Неорганическая химия

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