Octahedral clusters with mixed inner ligand environment: Self-assembly, modification and isomerism

Наумов, Н. Г.; Brylev, Konstantin A.; Mironov, Yuri V.; Cordier, Stéphane; Fedorov, V. E.

doi:10.1134/s0022476614080010

Cited by 19 publications

(11 citation statements)

References 91 publications

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“…In contrast, the inner ligands μ-Q and μ 3 -Q are strongly bound to the metal core and their replacement cannot be easily realized. The substitution of these sites may change the properties dramatically . It was assumed that the μ-S 2– ligands within the {Re 12 CS 14 (μ-S) 3 } core may have a higher lability than μ 3 -S 2– ones, because of their lower bonding energy with the Re atoms and high steric accessibility.…”

Section: Introductionmentioning

confidence: 99%

Facile Substitution of Bridging SO₂^2– Ligands in Re₁₂ Bioctahedral Cluster Complexes

et al. 2017

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Selective substitution of μ-SO groups by either O or Se ions occurs upon heating the bioctahedral rhenium cluster complex K[ReCS(μ-SO)(CN)] in air atmosphere or in the presence of a Se source, respectively, manifesting the remarkable lability of SO ligands bound to a transition-metal cluster. A series of compounds based on the new mixed-ligand anions, [ReCS(μ-O)(CN)], [ReCS(μ-Se)(CN)], and [ReCS(μ-O)(OH)], were isolated and their solid-state structures were elucidated by single-crystal X-ray diffraction analysis. Along with the previously reported μ-sulfide clusters, the new species constitute a series of rhenium anionic complexes with the common formula [ReCS(μ-Q)L] (Q = O, S, Se, L = CN; Q = O, S, L = OH), within which the total charge and number of cluster valence electrons (CVEs) are constant. The article presents insights into the mechanistic and synthetic aspects of the substitution process, and it comprehensively discusses the influence of inner ligand environment on the structure, spectroscopic characteristics, and electrochemical behavior of the novel compounds.

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Section: Introductionmentioning

confidence: 99%

Facile Substitution of Bridging SO₂^2– Ligands in Re₁₂ Bioctahedral Cluster Complexes

et al. 2017

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“…Cl − ), 2) mono‐oxoanions (i.e. [MO x ] y − ), 3) common polyoxometalates of different shapes and charges, [18] 4) metal halides hexamers, [19] and 5) uranyl peroxide nanocapsules [12c] . A selection is illustrated in Figure 2A.…”

Section: Resultsmentioning

confidence: 99%

Predicting the Solubility of Inorganic Ion Pairs in Water

et al. 2022

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Polyoxometalates (POMs), ranging in size from 1 to 10's of nanometers, resemble building blocks of inorganic materials. Elucidating their complex solubility behavior with alkali-counterions can inform natural and synthetic aqueous processes. In the study of POMs ([Nb 24 O 72 H 9 ] 15À , Nb 24 ) we discovered an unusual solubility trend (termed anomalous solubility) of alkali-POMs, in which Nb 24 is most soluble with the smallest (Li + ) and largest (Rb/Cs + ) alkalis, and least soluble with Na/K + . Via computation, we define a descriptor (σprofile) and use an artificial neural network (ANN) to predict all three described alkali-anion solubility trends: amphoteric, normal

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“…Nuclear magnetic resonance for solid sample can be powerful to characterize chalcogen materials. It is based on the impact of radiofrequency irradiation on specific nuclei in certain field strength of the magnet (FT-NMR), causing the nuclei to spin resulting in resonance frequency which is an indication of the atom (e.g., 77 Se and 125 Te) [28]. NMR for chemist such as 1 H or 13 C NMR is usually the most important method for chemical structure elucidation.…”

Section: Methods For Chalcogen Materials Characterizationmentioning

confidence: 99%

“…However, material scientists need solid-state NMR with its magic angle spinning (MAS). Moreover, when other nuclei of resonance are used, one must swing the magnetic field according to selected NMR active probe nuclei, such as 77 Se and 125 Te NMR [28,29] to describe and confirm newly synthesized octahedral coordination compounds. NMR method assisted the description of how chalcogen elements (Se and Te) that can replace halogen as inner ligands in forming cluster cores in octahedral cluster complexes.…”

Section: Methods For Chalcogen Materials Characterizationmentioning

confidence: 99%

“…All compounds with oxygen can be essentials and contribute most of the chalcogen materials. The materials can be as simple as silica, as an example of oxygen compounds was made for some important application [20] or macromolecule like cellulose or its derivates [21] which is applicable in daily life and will be so still in the future, to a more complicated complexed compounds [22][23][24][25][26] or advanced materials [27][28][29] which are made for the sake of science and method development.…”

Section: Nature Of Chalcogen Compounds and Chalcogen Materialsmentioning

confidence: 99%

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Modern Analytical Chemistry Methods for Chalcogen Materials Analysis and Characterization

Wonorahardjo¹,

Fariati²,

Dasna³

2019

Chalcogen Chemistry

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Analytical methods are needed to elucidate modern and complex compounds as well as to describe their physical properties. The underlying principles of chalcogen chemistry as well as the natural abundance of chalcogen elements are the base of building many biological substances, including sophisticated materials for future applications. Thus, the need for modern and state-of-the art analytical methods and techniques to characterize them, is obvious. In this chapter, challenges in analytical methods for chalcogen compounds and materials, as well as some examples of natural or synthesized materials or their combinations, including biomaterials, are discussed. Modern methods for chalcogen compounds analysis and structural determination discussed include: UV-Visible and infrared spectroscopy (UV-Vis and IR), thermo analysis, electrochemistry, magnetic analysis, chromatography, X-ray methods (mostly XRF, XRD, and EDX), high-resolution microscopy (SEM and TEM), multinuclear NMR, computational analysis, and bioassay. Also, the historical background and nature of chalcogen elements, including reactivity and magnetic properties as well as thermal behavior, common compounds of chalcogen elements: organic and inorganic materials, complex chalcogen materials, will be briefly discussed.

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Octahedral clusters with mixed inner ligand environment: Self-assembly, modification and isomerism

Cited by 19 publications

References 91 publications

Facile Substitution of Bridging SO₂^2– Ligands in Re₁₂ Bioctahedral Cluster Complexes

Facile Substitution of Bridging SO₂^2– Ligands in Re₁₂ Bioctahedral Cluster Complexes

Predicting the Solubility of Inorganic Ion Pairs in Water

Modern Analytical Chemistry Methods for Chalcogen Materials Analysis and Characterization

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Octahedral clusters with mixed inner ligand environment: Self-assembly, modification and isomerism

Cited by 19 publications

References 91 publications

Facile Substitution of Bridging SO22– Ligands in Re12 Bioctahedral Cluster Complexes

Facile Substitution of Bridging SO22– Ligands in Re12 Bioctahedral Cluster Complexes

Predicting the Solubility of Inorganic Ion Pairs in Water

Modern Analytical Chemistry Methods for Chalcogen Materials Analysis and Characterization

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Product

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Facile Substitution of Bridging SO₂^2– Ligands in Re₁₂ Bioctahedral Cluster Complexes

Facile Substitution of Bridging SO₂^2– Ligands in Re₁₂ Bioctahedral Cluster Complexes