Extended chains in Vanadium O-centered complex [V4OSe8I5]∞: synthesis and structure

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2024-12-17 DOI:10.1039/d4dt02758b

Ruslan Galiev, Sofya Borisovna Artemkina, Vladislav Komarov, Maxim R. Ryzhikov, Svetlana Kozlova, Vitalii Anatolievich Kuznetsov, Ekaterina D. Grayfer, Vladimir E. Fedorov

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引用次数: 0

Abstract

O-centered tetranuclear vanadium selenoiodide [V4OSe8I5]∞ (1) was synthesized by an ampoule method from the elements with addition of water. Its X-ray crystal structure (space group C2/c, a = 21.146(2) Å, b = 5.8953(5) Å, c = 18.735(1) Å, β = 126.421(2)°, V = 1879.4(3) Å3, T = 150 К, Z = 4) is a packing of chains built from O-centered tetranuclear [V4(μ4-O)(μ-Se2)4(μ4-I)2/2I4] fragments. In the O-centered fragment, vanadium atoms form a distorted tetrahedron around an oxygen atom, V atoms are bridged by four μ2-(Se2)2– and two I– ligands. The latter iodide ligands bridge the neighboring fragments, thus forming a chain [V4(μ4-O)(μ-Se2)4(μ4-I)2/2I4]∞. The synthesis of the chain [V4OSe8I5]∞ takes place at the temperature of 290°С, while at lower temperatures (220-250°С) molecular compounds [V4OSe8I6]·X form. The direct ‘cluster to chain’ transformation is also observed and discussed in this work. Electrical resistance of the [V4OSe8I5]∞ polycrystalline pressed sample shows that the compound 1 is a narrow gap semiconductor, which is in agreement with the DFT calculations.

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钒 O 型中心复合物 [V4OSe8I5]∞ 中的扩展链：合成与结构

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.