A5050023168- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Inorganic Chemistry and Materials
- Organometallic Complex Synthesis and Catalysis
- Nanocluster Synthesis and Applications
- Polyoxometalates: Synthesis and Applications
- MXene and MAX Phase Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Catalytic Cross-Coupling Reactions
- Crystal Structures and Properties
- Lanthanide and Transition Metal Complexes
- Advanced Photocatalysis Techniques
- Carbon dioxide utilization in catalysis
- Chemical Synthesis and Characterization
- Nanoplatforms for cancer theranostics
- Radiopharmaceutical Chemistry and Applications
- Metalloenzymes and iron-sulfur proteins
- Inorganic Fluorides and Related Compounds
- Synthesis and characterization of novel inorganic/organometallic compounds
- Radioactive element chemistry and processing
- Advanced Nanomaterials in Catalysis
- Chemical Synthesis and Analysis
- Magnetism in coordination complexes
- Bone Tissue Engineering Materials
Nikolaev Institute of Inorganic Chemistry
2015-2024
Siberian Branch of the Russian Academy of Sciences
2015-2024
Federal Research Center of Fundamental and Translational Medicine
2018-2024
Russian Academy of Sciences
2012-2024
Université de Versailles Saint-Quentin-en-Yvelines
2022
Université Paris-Saclay
2022
Centre National de la Recherche Scientifique
2009-2022
Institut Lavoisier de Versailles
2022
Mongolian Academy of Sciences
2022
Novosibirsk State University
2014-2020
Silica nanoparticles (SNPs) doped by hexanuclear molybdenum cluster complexes [{Mo6X8}L6]n (X = Cl, Br, or I; L various inorganic organic ligands) have been recently suggested as materials with high potential for biomedical applications due to both their outstanding photoluminescence properties and ability efficiently generate singlet oxygen upon photoirradiation. However, no studies were undertaken so far prove this concept. Therefore, here we examined the of photoluminescent SNPs {Mo6I8}4+...
Abstract Herein, we show how the chaotropic effect arising from reduced molybdate ions in acidified aqueous solution is able to amplify drastically weak supramolecular interactions. Time‐resolved Small Angle X‐ray Scattering (SAXS) analysis suggests that molybdenum‐blue oligomeric species form huge aggregates presence of γ‐cyclodextrin (γ‐CD) which results fast formation nanoscopic {Mo 154 }‐based host‐guest species, while diffraction reveals ending‐point scenario an unprecedented...
Heavy oil resources are attracting considerable interest in terms of sustaining energy demand. However, the exploitation such requires deeper understanding processes occurring during their development. Promising methods currently used for enhancing heavy recovery steam injection methods, which based on aquathermolysis at higher temperatures. Regardless its efficiency field situ upgrading oil, this technique still suffers from consumption and inefficient heat transfer reservoirs. During...
The embedding of functional inorganic entities into polymer matrices has become an intense field investigation in which the main challenges are to keep added value while preventing their self-aggregation within organic matrix. We present a simple way obtain homogeneous highly red-NIR luminescent hybrid copolymer that contains covalently bonded nanometric-sized {Re(6)} octahedral clusters. [Re(6)Se(i)(8)(OH)(a)(6)](4-) cluster complexes primarily functionalized two steps with...
The synthesis and characterisation of a new, highly luminescent inorganic cluster complex, (Bu4N)2[Mo6I8(NO3)6], are described. complex possesses labile nitrato ligands is therefore useful precursor for the design new materials. To exemplify this, functionalised polystyrene beads have been utilised as "polymeric ligands" to immobilise molybdenum complex.
The hexarhenium cluster complexes with benzotriazolate apical ligands [{Re6(μ3-Q)8}(BTA)6](4-) (Q = S, Se; BTA ion) were obtained by the reaction of [{Re6(μ3-Q)8}(OH)6](4-) molten 1H-BTA (1H-benzotriazole). clusters crystallized as potassium salts and characterized X-ray single-crystal diffraction, elemental analyses, UV-vis luminescence spectroscopy. In addition, their cellular uptake toxicity evaluated. It was found that both exhibited high lifetimes quantum yield values; they taken up...
This article describes the synthesis, structures and systematic study of spectroscopic redox properties a series octahedral molybdenum metal cluster complexes with aromatic sulfonate ligands (nBu4N)2[{Mo6X8}(OTs)6] (nBu4N)2[{Mo6X8}(PhSO3)6] (where X- is Cl-, Br- or I-; OTs- p-toluenesulfonate PhSO3- benzenesulfonate). All demonstrated photoluminescence in red region an ability to generate singlet oxygen. Notably, highest quantum yields (>0.6) narrowest emission bands were found for {Mo6I8}4+...
Octahedral metal cluster complexes have high potential for biomedical applications. In order to evaluate the benefits of these moieties combined CT/X-ray luminescence computed tomography, this paper compares photoluminescence, radiodensity and X-ray induced properties eight related octahedral molybdenum tungsten [{M6I8}L6]n (where M is Mo or W L I-, NO3-, OTs- OH-/H2O). This article demonstrates that despite fact are better photoluminescence emitters, complexes, in particular...
The chaotropic character of Keggin-type polyoxotungstate anions was evaluated with respect to their ability bind γ-cyclodextrin (γ-CD) by varying the global charge density nanometer-sized polyanion.
Photophysical properties of Mo<sub>6</sub>cluster-doped silica particles.
Octahedral rhenium cluster complexes have recently emerged as relevant building blocks for the design of singlet oxygen photosensitizing materials toward biological applications such blue-light photodynamic therapy. However, their generation ability well properties been studied only superficially. Herein we investigate in detail photogeneration, dark and photoinduced cytotoxicity, cellular uptake kinetics, localization vitro oxidative stress, cytotoxicity series octahedral [{Re6Q8}(CN)6]4-,...
Abstract Water‐soluble salts of anionic [Re 6 Q 8 (CN) ] 4− (Q=S, Se, Te) chalcogenide octahedral rhenium clusters react with γ‐cyclodextrin (γ‐CD) producing a new type inclusion compounds. Crystal structures determined through single‐crystal X‐ray diffraction analysis revealed supramolecular host–guest assemblies resulting from close encapsulations the cluster within two γ‐CDs. Interestingly, nature inner ligands influences strongly conformation. The S interacts preferentially primary faces...
Nowadays, the development of new effective photocatalytic materials for purification real wastewaters and model systems containing organic molecules constitutes an important challenge. Here we present a preparation strategy composite based on hexamolybdenum cluster complexes exfoliated hexagonal boron nitride (h-BN) nanosheets. Cluster deposition nanosheet surface was achieved by impregnation matrix (Bu4N)2[{Mo6I8}(NO3)6]/acetone solution. Successful immobilization chemical composition...
X-ray-induced photodynamic therapy (X-PDT) has recently evolved into a suitable modality to fight cancer. This technique, which exploits radiosensitizers producing reactive oxygen species, allows for reduction of the radiation dose needed eradicate cancer in frame radiotherapy treatment deep tumors. The use transition metal complexes able directly produce singlet oxygen, O2(1Δg), upon X-ray irradiation constitutes promising route towards optimization radiosensitizer's architecture. In our...
Reactions in a sealed glass tube between melted pyrazine (pyz) and Cs(3)Re(6)Q(i)(7)Br(i)Br(a)(6).H(2)O inorganic rhenium cluster compound (Q = S, Se; "i" for inner "a" apical positions) containing [Re(6)Q(i)(7)Br(i)Br(a)(6)](3-) units led to the substitution of three bromine ligands by groups with formation 3 CsBr as byproduct. The resulting fac-Re(6)Q(i)(7)Br(i)(pyz)(a)(3)Br(a)(3) building unit, based on Re(6) metal atom cluster, is neutral noncentrosymmetric exhibits an ambivalent...
A water-soluble form of {Mo<sub>6</sub>X<sub>8</sub>}<sup>4+</sup> clusters was developed.
Transparent yet photoluminescent, materials with facile processability are key in many applications.
Abstract Octahedral molybdenum and tungsten clusters have potential biological applications in photodynamic therapy bioimaging. However, poor solubility hydrolysis stability of these compounds hinder their application. The first water‐soluble photoluminescent octahedral cluster [{W 6 I 8 }(DMSO) ](NO 3 ) 4 was synthesised demonstrated to be at least one order magnitude more stable towards than its analogue. Biological studies the compound on larynx carcinoma cells suggest that it has a...