First Pentanuclear Molybdenum Iodide Cluster (Bu&lt;inf&gt;4&lt;/inf&gt;N)[Mo&lt;inf&gt;5&lt;/inf&gt;OI&lt;inf&gt;13&lt;/inf&gt;]: Synthesis and Structure

Mikhaylov M.A.; Sukhikh T.S.; Sheven’ D.G.; Sokolov M.N.

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

Mikhaylov M.A., Sukhikh T.S., Sheven’ D.G., Sokolov M.N.

Дата публикации: 2021

Дата публикации в реестре: 2022-10-06T16:04:26Z

Аннотация:

Abstract: 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.

Ключевые слова:
clusters, crystal structure, iodine, molybdenum, oxoiodides, self-assembling

Тип: Article

Источник: SCOPUS10703284-2021-47-8-SID85112466467