Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Optical property trends in a family of {Mo6I8} aquahydroxo complexes. / Marchuk, Margarita V.; Vorotnikova, Natalya A.; Vorotnikov, Yuri A. и др.
в: Dalton Transactions, Том 50, № 25, 07.07.2021, стр. 8794-8802.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Optical property trends in a family of {Mo6I8} aquahydroxo complexes
AU - Marchuk, Margarita V.
AU - Vorotnikova, Natalya A.
AU - Vorotnikov, Yuri A.
AU - Kuratieva, Natalia V.
AU - Stass, Dmitri V.
AU - Shestopalov, Michael A.
N1 - Funding Information: This work was supported by the Russian Foundation for Basic Research (Grant No. 18-33-20061). Photo-and X-ray-induced luminescence measurements were performed with support from the Russian Science Foundation (Grant No. 19-73-00223). The NIIC team thanks the Ministry of Science and Education of the Russian Federation. Funding Information: This work was supported by the Russian Foundation for Basic Research (Grant No. 18-33-20061). Photo- and X-ray-induced luminescence measurements were performed with support from the Russian Science Foundation (Grant No. 19-73-00223). The NIIC team thanks the Ministry of Science and Education of the Russian Federation. Publisher Copyright: © The Royal Society of Chemistry 2021. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/7/7
Y1 - 2021/7/7
N2 - Luminescence is one of the key properties of octahedral molybdenum cluster complexes and the basis for most areas of their possible practical applications. Nevertheless, the factors affecting the optical properties of the clusters are insufficiently studied and establishing them will allow us to tune both absorption and emission more precisely. In this work, we obtained two new cationic [{Mo6I8}(H2O)4(OH)2](An)2·nH2O (An = NO3−,n= 3; An = OTs−,n= 2, OTs−-p-toluenesulfonate), and two neutral [{Mo6I8}(H2O)2(OH)4]·nH2O (n= 2, 12) aquahydroxo complexes. Due to the similar compositions of the clusters obtained, we determined the influence of crystal packing and ligand environment on the absorption and photo- and radioluminescence properties. Thus, the four-component nature of the cluster emission was established using Gaussian deconvolution of the photoluminescence spectra. It was shown that the influence of both ligand type and crystal density decreases when moving to the red (lower-energy) part of the spectra, with only the first two components located in the blue (higher-energy) part of the spectra being strongly affected. Also, it was found that protonation of two hydroxo ligands leads to a significant decrease in absorption in the visible spectral region.
AB - Luminescence is one of the key properties of octahedral molybdenum cluster complexes and the basis for most areas of their possible practical applications. Nevertheless, the factors affecting the optical properties of the clusters are insufficiently studied and establishing them will allow us to tune both absorption and emission more precisely. In this work, we obtained two new cationic [{Mo6I8}(H2O)4(OH)2](An)2·nH2O (An = NO3−,n= 3; An = OTs−,n= 2, OTs−-p-toluenesulfonate), and two neutral [{Mo6I8}(H2O)2(OH)4]·nH2O (n= 2, 12) aquahydroxo complexes. Due to the similar compositions of the clusters obtained, we determined the influence of crystal packing and ligand environment on the absorption and photo- and radioluminescence properties. Thus, the four-component nature of the cluster emission was established using Gaussian deconvolution of the photoluminescence spectra. It was shown that the influence of both ligand type and crystal density decreases when moving to the red (lower-energy) part of the spectra, with only the first two components located in the blue (higher-energy) part of the spectra being strongly affected. Also, it was found that protonation of two hydroxo ligands leads to a significant decrease in absorption in the visible spectral region.
UR - http://www.scopus.com/inward/record.url?scp=85108867648&partnerID=8YFLogxK
U2 - 10.1039/d1dt01293b
DO - 10.1039/d1dt01293b
M3 - Article
C2 - 34095938
AN - SCOPUS:85108867648
VL - 50
SP - 8794
EP - 8802
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 25
ER -
ID: 29126194