Clusters and Cluster Assemblies

Sokolov, Maxim N.; Наумов, Н. Г.; Samoylov, P.P.; Fedin, Vladimir P.

doi:10.1016/b978-0-08-097774-4.00212-6

Cited by 26 publications

(10 citation statements)

References 596 publications

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“…The formation of stable cluster groups with metalmetal bonds of various multiplicity is a characteristic feature of lower molybdenum and tungsten halides [1]. The clusters containing the cluster cores {M 6 X 8 } 4+ (M = Mo, W; X = Cl, Br, I) are most studied [2].…”

Section: Introductionmentioning

confidence: 99%

First Pentanuclear Molybdenum Iodide Cluster (Bu4N)[Mo5OI13]: Synthesis and Structure

et al. 2021

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The first iodide cluster of molybdenum with the metal cage in the form of a tetragonal pyramid (Bu4N)[Mo5OI13]·THF (I) and cocrystallizate (Bu4N){[Mo5OI13]0.9[Mo6I14]·THF (II) are synthesized for the first time by heating a LiI–I2–Mo mixture in a temperature range of 300–400°С followed by the extraction of the product. Complexes I and II are studied by X-ray diffraction analysis (CIF files CCDC nos. 2063029 (I) and 2063030 (II)). The molybdenum atoms in [Mo5OI13]– form a square pyramid with Mo–Mo distances of 2.67 Å between the basal molybdenum atoms and the Mo–Mo distances equal to 2.72 Å between the apical and basal molybdenum atoms. The oxygen atom is coordinated to the pyramid base (Mo–μ4-O 2.10 Å). The cluster anion [Mo5OI13]– can be presented as the octahedral cluster anion [Mo6I14]2– in which the position of the {MoI}– fragment (d0, 6e) is occupied by the isoelectronic oxygen atom (s2p4, 6e). In the structure of compound II, the [Mo5OI13]– and [Mo6I14]2– cluster anions occupy close atomic positions.

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Section: Introductionmentioning

confidence: 99%

First Pentanuclear Molybdenum Iodide Cluster (Bu4N)[Mo5OI13]: Synthesis and Structure

et al. 2021

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“…In the chemistry of transition metal clusters the octahedral complexes are one of the most representative compounds [1][2][3][4]. There are two main structural types of the octahedral cluster complexes that are defined by composition and structure of the cluster core.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2014

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Octahedral cluster complexes of transition metals are associated with halogen or chalcogen inner ligands to form edge-bridged {M 6 (μ 2 -X) 12 } or face-capped {M 6 (μ 3 -X) 8 } cluster cores. The partial exchange of X atoms leading to mixed inner ligand environment invokes a distortion of metallic cluster, reduction of symmetry as well as an isomerism of the cluster cores. This review summarizes preparation methods of mixed ligand cluster complexes with the general formulas [{M 6 (μ 2 -X) 12 }L 6 ] n or [{M 6 (μ 3 -X) 8 }L 6 ] n and their structural features.

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“…The synthesis and structural characterization of transition metal clusters, characterized by having metal-metal bonds, have been widely explored in the last few decades, 16,119 and no attempt will be made here to cover the rich structural chemistry of cluster compounds. This section will rather focus on the existence of examples of the wide palette of ideal geometries and of intermediate shapes along their minimal distortion interconversion pathways presented in Fig.…”

Section: Transition Metal Clustersmentioning

confidence: 99%

From polygons to polyhedra through intermediate structures. A shape measures study of six-atom inorganic rings and clusters

Álvarez

2021

Dalton Trans.

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Clusters and Cluster Assemblies

Cited by 26 publications

References 596 publications

First Pentanuclear Molybdenum Iodide Cluster (Bu4N)[Mo5OI13]: Synthesis and Structure

First Pentanuclear Molybdenum Iodide Cluster (Bu4N)[Mo5OI13]: Synthesis and Structure

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

From polygons to polyhedra through intermediate structures. A shape measures study of six-atom inorganic rings and clusters

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