A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes

Darya V. Evtushok, Anatoly R. Melnikov, Natalya A. Vorotnikova, Yuri A. Vorotnikov, Alexey A. Ryadun, Natalia V. Kuratieva, Konstantin V. Kozyr, Natalia R. Obedinskaya, Evgeniy I. Kretov, Igor N. Novozhilov, Yuri V. Mironov, Dmitri V. Stass, Olga A. Efremova, Michael A. Shestopalov

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Octahedral metal cluster complexes have high potential for biomedical applications. In order to evaluate the benefits of these moieties for combined CT/X-ray luminescence computed tomography, this paper compares photoluminescence, radiodensity and X-ray induced luminescence properties of eight related octahedral molybdenum and tungsten cluster complexes [{M6I8}L6]n (where M is Mo or W and L is I-, NO3 -, OTs- or OH-/H2O). This article demonstrates that despite the fact that molybdenum cluster complexes are better photoluminescence emitters, tungsten cluster complexes, in particular (Bu4N)2[{W6I8}I6], demonstrate significantly higher X-ray induced luminescence due to a combination of relatively good photoluminescence properties and high X-ray attenuation. Additionally, photo-degradation of [{M6I8}(NO3)6]2- was evaluated.

Original languageEnglish
Pages (from-to)11738-11747
Number of pages10
JournalDalton Transactions
Volume46
Issue number35
DOIs
Publication statusPublished - 21 Sep 2017

Keywords

  • ORGANIC-INORGANIC HYBRIDS
  • METAL-CLUSTERS
  • CONTRAST AGENTS
  • CELLULAR INTERNALIZATION
  • COMPUTED-TOMOGRAPHY
  • ENERGY-TRANSFER
  • IODIDE CLUSTER
  • IN-VIVO
  • RHENIUM
  • WATER

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