A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes. Issue 35 (22nd August 2017)

• Record Type: Journal Article
• Authors: Evtushok, Darya V.; Melnikov, Anatoly R.; Vorotnikova, Natalya A.; Vorotnikov, Yuri A.; Ryadun, Alexey A.; Kuratieva, Natalia V.; Kozyr, Konstantin V.; Obedinskaya, Natalia R.; Kretov, Evgeniy I.; Novozhilov, Igor N.; Mironov, Yuri V.; Stass, Dmitri V.; Efremova, Olga A.; Shestopalov, Michael A.
• Is Part Of: Dalton transactions. Volume 46:Issue 35(2017)
• Page Start: 11738
• Page End: 11747
• Publication Date: 2017-08-22
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt01919j
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Octahedral W cluster complexes have more intensive X-ray excited optical luminescence than Mo ones. 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 [{M6 I8 }L6 ] n (where M is Mo or W and L is I −, NO3 −, OTs − or OH − /H2 O). This article demonstrates that despite the fact that molybdenum cluster complexes are better photoluminescence emitters, tungsten cluster complexes, in particular (Bu4 N)2 [{W6 I8 }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 [{M6 I8 }(NO3 )6 ] 2− was evaluated.