Synthesis and Structure of Fe(III) Complexes with 2,1,3-Benzothiadiazole-5,6-Dithiolate

IF 1.4 4区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Structural Chemistry Pub Date : 2025-07-01 DOI:10.1134/S0022476625060058

P. A. Martynenko, D. A. Bashirov, T. S. Sukhikh, S. N. Konchenko

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Abstract

Two new Fe(III) anionic complexes with 2,1,3-benzothiadiazole-5,6-dithiolate (btdt^2–) isolated as crystalline (PyH)₂[Fe(btdt)₂]₂·2C₃H₆O (1·2C₃H₆O) and (NBu₄)₂[Fe(btdt)₂]₂·3THF (2·3THF) solvates are synthesized and characterized by single crystal X-ray diffraction. The anionic unit of these complexes consists of [Fe(btdt)₂]^– moieties dimerized in \([\text{Fe}{{(\text{btdt})}_{2}}]_{2}^{2-}\) bridged through coordination of one sulfur atom of each of the (btdt)^2–ligands. Finally, in \([\text{Fe}{{(\text{btdt})}_{2}}]_{2}^{2-}\), the iron atoms are in a square pyramidal environment of sulfur atoms. The absorption spectra of acetonitrile solutions of compounds 1 and 2 demonstrate broad bands with the maxima at 250 nm, 404 nm, 485 nm, and 606 nm covering the entire visible light region.

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2,1,3-苯并噻唑-5,6-二硫酸铁（III）配合物的合成与结构

合成了两种新的Fe（III）阴离子配合物，它们与2,1,3-苯并噻唑-5,6-二硫代酸酯（btdt2 -）分离为晶体（PyH）2[Fe(btdt)2]2·2c3h60（1·2c3h60）和（NBu4）2[Fe(btdt)2]2·3THF（2·3THF）溶剂化物，并用单晶x射线衍射对其进行了表征。这些配合物的阴离子单元由[Fe(btdt)2] -在\([\text{Fe}{{(\text{btdt})}_{2}}]_{2}^{2-}\)中二聚的部分组成，通过每个（btdt）2配体的一个硫原子的配位桥接。最后，在\([\text{Fe}{{(\text{btdt})}_{2}}]_{2}^{2-}\)中，铁原子处于硫原子的方形金字塔环境中。化合物1和2在乙腈溶液中的吸收光谱显示出较宽的波段，其最大值在250 nm、404 nm、485 nm和606 nm处，覆盖了整个可见光区。

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来源期刊

Journal of Structural Chemistry 化学-无机化学与核化学

CiteScore

1.60

自引率

12.50%

发文量

142

审稿时长

8.3 months

期刊介绍： Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.