A highly emissive inorganic hexamolybdenum cluster complex as a handy precursor for the preparation of new luminescent materials

Efremova, O. A.; Shestopalov, M. A.; Chirtsova, N. A.; Smolentsev, A. I.; Mironov, Y. V.; Kitamura, N.; Brylev, K. A.; Sutherland, A. J.

doi:10.1039/c3dt53126k

Water‐soluble rhenium clusters with triazoles: the effect of chemical structure on cellular internalization and the DNA binding of the complexes (2020)
Journal Article
Konovalov, D. I., Ivanov, A. A., Frolova, T. S., Eltsov, I. V., Gayfulin, Y. M., Plunkett, L., Bazzar, M., Adawi, A. M., Bouillard, J. S. G., Baiborodin, S. I., Sinitsyna, O. I., Kuratieva, N. V., Yanshole, V. V., Efremova, O. A., & Shestopalov, M. A. (2020). Water‐soluble rhenium clusters with triazoles: the effect of chemical structure on cellular internalization and the DNA binding of the complexes. Chemistry: a European journal, 26(61), 13904-13914. https://doi.org/10.1002/chem.202001680

Here we explore the effect of the nature of organic ligands in rhenium cluster complexes [Re6Q8L6]4− (where Q=S or Se, and L=benzotriazole, 1,2,3-triazole or 1,2,4-triazole) on the biological properties of the complexes, in particular on the cellular... Read More about Water‐soluble rhenium clusters with triazoles: the effect of chemical structure on cellular internalization and the DNA binding of the complexes.

Octahedral molybdenum cluster as a photoactive antimicrobial additive to a fluoroplastic (2019)
Journal Article
Vorotnikova, N. A., Alekseev, A. Y., Vorotnikov, Y. A., Evtushok, D. V., Molard, Y., Amela-Cortes, M., Cordier, S., Smolentsev, A. I., Burton, C. G., Kozhin, P. M., Zhu, P., Topham, P. D., Mironov, Y. V., Bradley, M., Efremova, O. A., & Shestopalov, M. A. (2019). Octahedral molybdenum cluster as a photoactive antimicrobial additive to a fluoroplastic. Materials Science and Engineering: C, 110150. https://doi.org/10.1016/j.msec.2019.110150

Finding methods that fight bacterial infection or contamination, while minimising our reliance on antibiotics is one of the most pressing needs of this century. Although the utilisation of UV-C light and strong oxidising agents, such as bleach, are s... Read More about Octahedral molybdenum cluster as a photoactive antimicrobial additive to a fluoroplastic.

Octahedral chalcogenide rhenium cluster complexes with imidazole (2019)
Journal Article
Konovalov, D. I., Ivanov, A. A., Vorotnikov, Y. A., Smolentsev, A. I., Eltsov, I. V., Efremova, O. A., Kitamura, N., Mironov, Y. V., & Shestopalov, M. A. (2019). Octahedral chalcogenide rhenium cluster complexes with imidazole. Polyhedron, 165, 79-85. https://doi.org/10.1016/j.poly.2019.03.007

Reactions of [{Re6Q8}Br6]4−/3− (Q = S, Se) with molten imidazole lead to the formation of two new neutral cluster complexes [{Re6Q8}(imzH)4(imz)2] (imzH = imidazole). The interaction of [{Re6Q8}(imzH)4(imz)2] with hydrohalic acids resulted in cationi... Read More about Octahedral chalcogenide rhenium cluster complexes with imidazole.

Luminescent silica mesoparticles for protein transduction (2018)
Journal Article
Vorotnikov, Y. A., Pozmogova, T. N., Solovieva, A. O., Miroshnichenko, S. M., Vorontsova, E. V., Shestopalova, L. V., Mironov, Y. V., Shestopalov, M. A., & Efremova, O. A. (2019). Luminescent silica mesoparticles for protein transduction. Materials Science and Engineering: C, 96, 530-538. https://doi.org/10.1016/j.msec.2018.11.056

Unlike silica nanoparticles, the potential of silica mesoparticles (SMPs) (i.e. particles of submicron size) for biological applications in particular the in vitro (let alone in vivo) cellular delivery of biological cargo has so far not been sufficie... Read More about Luminescent silica mesoparticles for protein transduction.

From photoinduced to dark cytotoxicity via an octahedral cluster hydrolysis (2018)
Journal Article
Svezhentseva, E. V., Vorotnikov, Y. A., Solovieva, A. O., Pozmogova, T. N., Eltsov, I. V., Ivanov, A. A., Evtushok, D. V., Miroshnichenko, S. M., Yanshole, V. V., Eling, C. J., Adawi, A. M., Bouillard, J. S. G., Kuratieva, N. V., Fufaeva, M. S., Shestopalova, L. V., Mironov, Y. V., Efremova, O. A., & Shestopalov, M. A. (2018). From photoinduced to dark cytotoxicity via an octahedral cluster hydrolysis. Chemistry: a European journal, 24(68), 17915-17920. https://doi.org/10.1002/chem.201804663

Octahedral molybdenum and tungsten clusters have potential biological applications in photodynamic therapy and bioimaging. However, poor solubility and hydrolysis stability of these compounds hinder their application. The first water-soluble photolum... Read More about From photoinduced to dark cytotoxicity via an octahedral cluster hydrolysis.

Conjugated, rod-like viologen oligomers: Correlation of oligomer length with conductivity and photoconductivity (2018)
Journal Article
Chen, L., Vivier, E., Eling, C. J., Babra, T. S., Bouillard, J. S. G., Adawi, A. M., Benoit, D. M., Hartl, F., Colquhoun, H. M., Efremova, O. A., & Greenland, B. W. (2018). Conjugated, rod-like viologen oligomers: Correlation of oligomer length with conductivity and photoconductivity. Synthetic Metals, 241, 31-38. https://doi.org/10.1016/j.synthmet.2018.03.019

© 2018 An iterative synthesis has been used to produce conjugated, monodisperse, viologen-based aromatic oligomers containing up to 12 aromatic/heterocyclic rings. The methoxy-substituted oligomers were soluble in common organic solvents and could be... Read More about Conjugated, rod-like viologen oligomers: Correlation of oligomer length with conductivity and photoconductivity.

23-electron octahedral molybdenum cluster complex [{Mo 6 I 8 }Cl 6 ] – (2017)
Journal Article
Syrokvashin, M. M., Vorotnikova, N. A., Vorotnikov, Y. A., Novozhilov, I. N., Syrokvashin, M. М., Nadolinny, V. A., Kuratieva, N. V., Benoit, D. M., Mironov, Y. V., Walton, R. I., Clarkson, G. J., Kitamura, N., Sutherland, A. J., Shestopalov, M. A., & Efremova, O. A. (2018). 23-electron octahedral molybdenum cluster complex [{Mo 6 I 8 }Cl 6 ] –. Inorganic chemistry, 57(2), https://doi.org/10.1021/acs.inorgchem.7b02760

Photoactive transition metal compounds that are prone to reversible redox reactions are important for myriad applications, including catalysis, optoelectronics and sensing. This article describes chemical and electro-chemical methods to prepare clust... Read More about 23-electron octahedral molybdenum cluster complex [{Mo 6 I 8 }Cl 6 ] –.

One-pot synthesis of {Mo6I8}4+-doped polystyrene microspheres via a free radical dispersion copolymerisation reaction (2017)
Journal Article
Vorotnikova, N. A., Edeleva, M. V., Kurskaya, O. G., Brylev, K. A., Shestopalov, A. M., Mironov, Y. V., Sutherland, A. J., Efremova, O. A., & Shestopalov, M. A. (2017). One-pot synthesis of {Mo6I8}4+-doped polystyrene microspheres via a free radical dispersion copolymerisation reaction. Polymer international, 66(12), 1906-1912. https://doi.org/10.1002/pi.5473

© 2017 Society of Chemical Industry Molybdenum octahedral clusters, when incorporated into an appropriate polymer matrix, are considered as promising agents for a range of biological applications. This work describes the one-pot synthesis, morphology... Read More about One-pot synthesis of {Mo6I8}4+-doped polystyrene microspheres via a free radical dispersion copolymerisation reaction.

A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes (2017)
Journal Article
Evtushok, D. V., Melnikov, A. R., Vorotnikova, N. A., Vorotnikov, Y. A., Ryadun, A. A., Kuratieva, N. V., Kozyr, K. V., Obedinskaya, N. R., Kretov, E. I., Novozhilov, I. N., Mironov, Y. V., Stass, D. V., Efremova, O. A., & Shestopalov, M. A. (2017). A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes. Dalton Transactions : an international journal of inorganic chemistry, 46(35), 11738-11747. https://doi.org/10.1039/c7dt01919j

© 2017 The Royal Society of Chemistry. 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... Read More about A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes.

A comparative study of hydrophilic phosphine hexanuclear rhenium cluster complexes’ toxicity (2017)
Journal Article
Krasilnikova, A. A., Solovieva, A. O., Ivanov, A. A., Brylev, K. A., Pozmogova, T. N., Gulyaeva, M. A., Kurskaya, O. G., Alekseev, A. Y., Shestopalov, A. M., Shestopalova, L. V., Poveshchenko, A. F., Efremova, O. A., Mironov, Y. V., & Shestopalov, M. A. (2017). A comparative study of hydrophilic phosphine hexanuclear rhenium cluster complexes’ toxicity. Toxicology Research, 6(4), 554-560. https://doi.org/10.1039/c7tx00083a

Octahedral rhenium cluster compound Na2H8[{Re6Se8}(P(C2H4CONH2)(C2H4COO)2)6] has recently emerged as a very promising X-ray contrast agent for biomedical applications. However, the synthesis of this compound is rather challenging due to difficulty to... Read More about A comparative study of hydrophilic phosphine hexanuclear rhenium cluster complexes’ toxicity.

Water-soluble hybrid materials based on {Mo₆X₈}⁴⁺ (X = Cl, Br, I) cluster complexes and sodium polystyrene sulfonate (2017)
Journal Article
Solovieva, A. O., Vorotnikov, Y. A., Svezhentseva, E. V., Kurskaya, O. G., Brylev, K. A., Tsygankova, A. R., Edeleva, M. V., Gyrylova, S. N., Shestopalov, M. A., Mironov, Y. V., Shestopalov, A. M., Efremova, O. A., Brylev, K., Edeleva, M., Gyrylova, S., Kitamura, N., Kurskaya, O., Mironov, Y., Shestopalov, A., Shestopalov, M., …Vorotnikov, Y. (2017). Water-soluble hybrid materials based on {Mo₆X₈}⁴⁺ (X = Cl, Br, I) cluster complexes and sodium polystyrene sulfonate. New journal of chemistry = Nouveau journal de chimie, 41(4), 1670-1676. https://doi.org/10.1039/c6nj03469a

Development of water-soluble forms of octahedral molybdenum clusters {Mo₆X₈}⁴⁺ (X = Cl, Br, I) is strongly motivated by the tremendous potential that these complexes have for biological applications, namely as agents for bioimaging and photodynamic t... Read More about Water-soluble hybrid materials based on {Mo₆X₈}⁴⁺ (X = Cl, Br, I) cluster complexes and sodium polystyrene sulfonate.

Luminescent coordination polymers based on Ca²⁺ and octahedral cluster anions [{M₆Clⁱ₈}Clᵃ₆}²⁻ (M = Mo, W) : synthesis and thermal stability studies (2017)
Journal Article
Evtushok, D. V., Vorotnikova, N. A., Logvinenko, V. A., Smolentsev, A. I., Brylev, K. A., Plyusnin, P. E., Pishchur, D. P., Kitamura, N., Mironov, Y. V., Solovieva, A. O., Efremova, O. A., & Shestopalov, M. A. (2017). Luminescent coordination polymers based on Ca²⁺ and octahedral cluster anions [{M₆Clⁱ₈}Clᵃ₆}²⁻ (M = Mo, W) : synthesis and thermal stability studies. New journal of chemistry = Nouveau journal de chimie, 41(24), 14855-14861. https://doi.org/10.1039/c7nj02858j

Luminescent coordination polymers (CPs) based of inexpensive stable precursors are attractive materials for applications. Here we report the synthesis and evaluation of the stability and photophysical characteristics of the first examples of phosphor... Read More about Luminescent coordination polymers based on Ca²⁺ and octahedral cluster anions [{M₆Clⁱ₈}Clᵃ₆}²⁻ (M = Mo, W) : synthesis and thermal stability studies.

Hexaazide octahedral molybdenum cluster complexes: synthesis, properties and the evidence of hydrolysis (2016)
Journal Article
Vorotnikov, Y. A., Efremova, O. A., Novozhilov, I. N., Yanshole, V. V., Kuratieva, N. V., Brylev, K. A., Kitamura, N., Mironov, Y. V., & Shestopalov, M. A. (2017). Hexaazide octahedral molybdenum cluster complexes: synthesis, properties and the evidence of hydrolysis. Journal of molecular structure, 1134, 237-243. https://doi.org/10.1016/j.molstruc.2016.12.052

This article reports the synthesis, crystal structure of new molybdenum hexaazide cluster complex (ⁿBu₄N)₂[{Mo₆I₈}(N₃)₆] (3) and comparison of its photophysical and electrochemical properties to those of earlier reported analogues (ⁿBu₄N)₂[{M₆X₈}(N₃)... Read More about Hexaazide octahedral molybdenum cluster complexes: synthesis, properties and the evidence of hydrolysis.

Octahedral molybdenum cluster complexes with aromatic sulfonate ligands (2016)
Journal Article
Efremova, O. A., Vorotnikov, Y. A., Brylev, K. A., Vorotnikova, N. A., Novozhilov, I. N., Kuratieva, N. V., Edeleva, M. V., Benoit, D. M., Kitamura, N., Mironov, Y. V., Shestopalov, M. A., & Sutherland, A. J. (2016). Octahedral molybdenum cluster complexes with aromatic sulfonate ligands. Dalton Transactions : an international journal of inorganic chemistry, 45(39), 15427-15435. https://doi.org/10.1039/c6dt02863b

This article describes the synthesis, structures and systematic study of the spectroscopic and redox properties of a series of octahedral molybdenum metal cluster complexes with aromatic sulfonate ligands (ⁿBu₄N)₂[{Mo₆X₈}(OTs)₆] and (ⁿBu₄N)₂[{Mo₆X₈}(... Read More about Octahedral molybdenum cluster complexes with aromatic sulfonate ligands.

Cellular internalisation, bioimaging and dark and photodynamic cytotoxicity of silica nanoparticles doped by {Mo₆I₈}⁴⁺ metal clusters (2016)
Journal Article
Solovieva, A. O., Vorotnikov, Y. A., Trifonova, K. E., Efremova, O. A., Krasilnikova, A. A., Brylev, K. A., Vorontsova, E. V., Avrorov, P. A., Shestopalova, L. V., Poveshchenko, A. F., Mironov, Y. V., & Shestopalov, M. A. (in press). Cellular internalisation, bioimaging and dark and photodynamic cytotoxicity of silica nanoparticles doped by {Mo₆I₈}⁴⁺ metal clusters. Journal of Materials Chemistry B, 4(28), 4839-4846. https://doi.org/10.1039/c6tb00723f

Silica nanoparticles (SNPs) doped by hexanuclear molybdenum cluster complexes [{Mo₆X₈}L₆]n (X = Cl, Br, or I; L = various inorganic or organic ligands) have been recently suggested as materials with a high potential for biomedical applications due to... Read More about Cellular internalisation, bioimaging and dark and photodynamic cytotoxicity of silica nanoparticles doped by {Mo₆I₈}⁴⁺ metal clusters.

Design, synthesis and RAFT polymerisation of a quinoline-based monomer for use in metal-binding composite microfibers (2016)
Journal Article
Isakova, A., Efremova, O., Pullan, N., Lüer, L., & Topham, P. D. (2016). Design, synthesis and RAFT polymerisation of a quinoline-based monomer for use in metal-binding composite microfibers. RSC advances, 6(8), 6598-6606. https://doi.org/10.1039/c5ra25551a

Metal-binding polymer fibres have attracted major attention for diverse applications in membranes for metal sequestration from waste waters, non-woven wound dressings, matrices for photocatalysis, and many more. This paper reports the design and synt... Read More about Design, synthesis and RAFT polymerisation of a quinoline-based monomer for use in metal-binding composite microfibers.

Photoluminescent materials based on PMMA and a highly-emissive octahedral molybdenum metal cluster complex (2015)
Journal Article
Vejsadova, L., Efremova, O. A., Brylev, K. A., Chimonides, G. F., Kim, S.-J., Kitamura, N., Mikes, P., Shestopalov, M. A., Sutherland, A. J., Topham, P. D., Vejsadová, L., & Vorotnikov, Y. A. (2016). Photoluminescent materials based on PMMA and a highly-emissive octahedral molybdenum metal cluster complex. Journal of Materials Chemistry C, 4(3), 497-503. https://doi.org/10.1039/c5tc03204k

Materials that combine photoluminescence, optical transparency and facile processability are of high importance in many applications. This article reports on the development of photoluminescent poly(methyl methacrylate) materials based on novel highl... Read More about Photoluminescent materials based on PMMA and a highly-emissive octahedral molybdenum metal cluster complex.

Polymerisable octahedral rhenium cluster complexes as precursors for photo/electroluminescent polymers (2014)
Journal Article
Efremova, O. A., Brylev, K. A., Kozlova, O., White, M. S., Shestopalov, M. A., Kitamura, N., Mironov, Y. V., Bauer, S., & Sutherland, A. J. (2014). Polymerisable octahedral rhenium cluster complexes as precursors for photo/electroluminescent polymers. Journal of Materials Chemistry C, 2(40), 8630-8638. https://doi.org/10.1039/c4tc01643b

New polymerisable photoluminescent octahedral rhenium cluster complexes trans-[{Re₆Q₈}(TBP)₄VB)₂] (Q = S or Se; TBP – p-tert-butylpyridine; VB – vinyl benzoate) have been synthesised, characterised and used to construct rhe-nium cluster-organic polym... Read More about Polymerisable octahedral rhenium cluster complexes as precursors for photo/electroluminescent polymers.

A highly emissive inorganic hexamolybdenum cluster complex as a handy precursor for the preparation of new luminescent materials (2014)
Journal Article
Efremova, O. A., Shestopalov, M. A., Chirtsova, N. A., Smolentsev, A. I., Mironov, Y. V., Kitamura, N., Brylev, K. A., & Sutherland, A. J. (2014). A highly emissive inorganic hexamolybdenum cluster complex as a handy precursor for the preparation of new luminescent materials. Dalton Transactions : an international journal of inorganic chemistry, 43(16), 6021-6025. https://doi.org/10.1039/c3dt53126k

The synthesis and characterisation of a new, highly luminescent inorganic cluster complex, (Bu₄N)₂[Mo₆I₈(NO₃)₆], are described. The complex possesses labile nitrato ligands and is therefore a useful precursor for the design of new luminescent materia... Read More about A highly emissive inorganic hexamolybdenum cluster complex as a handy precursor for the preparation of new luminescent materials.

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